Make sure to check out the latest about the oil drilling industry. (presented by Seisma Oil Research)
Want to see how Oil is actually drilled for. Well we will show you with live video feeds, 3-d animation, as well as answer any and all of your quesions & posts about oil drilling. We invite you to have your children visit our site as well as we believe it will be education and hey, like the saying "Learn Something New Every Day".
Wednesday, September 30, 2009
Friday, September 18, 2009
WEST TEXAS
We at Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) thought you might be interested in learning a little bit about West Texas.
West Texas is a region in Texas that has more in common geographically with the Southwestern United States than it does with the rest of the state. This part of Texas is in the Northern Chihuahuan Desert and the high mountain areas have a climate of cold nights and warm afternoons in winter; hot days and cool nights in the summer.
Population
West Texas has a much lower population density than the rest of the state. It was once mostly inhabited by nomadic Native American tribes such as the Apache, Comanche, and Kiowa until after the Civil War. It does not have as many ties to other parts of the Southern United States as does East Texas, although many of the people who currently populate West Texas are also migrants from other parts of Texas and other Southern states or their descendants. There is a very large Hispanic population, especially near the Rio Grande. Many Mexicans fled Ojinaga and walked to Stonewall during the Mexican revolution in the early days of the 20th century. Many Mexican-Americans still have close family ties in Mexico.
Climate
West Texas receives much less rainfall than the rest of Texas and has an arid or semi-arid climate, requiring most of its scant agriculture to be heavily dependent on irrigation. This irrigation, and water taken out farther North for the needs of El Paso and Juarez, Mexico, has reduced both the Pecos River and the once mighty Rio Grande to a stream in some places, even dry at times. Much of West Texas has rugged terrain including many small mountain ranges while there are none in other parts of the state. West Texas contains part of the Chihuahuan Desert and also the Southern Great Plains, known as the Llano Estacado.
Politics
The area is known for its conservative politics — some of the most heavily Republican counties in the United States are located in the region, where former President George W. Bush spent his early youth. Republican candidates often win in this region by well over 70 percent of the vote. Glasscock County, for instance, gave over 90 percent of the vote to the Republican candidate in both 2004 and 2008.
This region was one of the first areas of Texas to abandon its Democratic roots; some counties (such as Midland) haven't supported a Democrat for president since 1948. However, Democrats continued to win most local races well into the 1990s.
In contrast, El Paso is heavily Democratic, and in the 2008 Presidential election, El Paso, Culberson, Reeves, Presidio, and Brewster-counties-all with large Hispanic populations-- were won by Democrat Barack Obama.
Industry
Major industries include livestock, petroleum and natural gas production, textiles such as cotton, grain farming and because of its proximity to the Mexican border, the maquiladora industry. West Texas has become notable for its numerous wind turbines producing clean, alternative electricity.
West Texas is a region in Texas that has more in common geographically with the Southwestern United States than it does with the rest of the state. This part of Texas is in the Northern Chihuahuan Desert and the high mountain areas have a climate of cold nights and warm afternoons in winter; hot days and cool nights in the summer.
Population
West Texas has a much lower population density than the rest of the state. It was once mostly inhabited by nomadic Native American tribes such as the Apache, Comanche, and Kiowa until after the Civil War. It does not have as many ties to other parts of the Southern United States as does East Texas, although many of the people who currently populate West Texas are also migrants from other parts of Texas and other Southern states or their descendants. There is a very large Hispanic population, especially near the Rio Grande. Many Mexicans fled Ojinaga and walked to Stonewall during the Mexican revolution in the early days of the 20th century. Many Mexican-Americans still have close family ties in Mexico.
Climate
West Texas receives much less rainfall than the rest of Texas and has an arid or semi-arid climate, requiring most of its scant agriculture to be heavily dependent on irrigation. This irrigation, and water taken out farther North for the needs of El Paso and Juarez, Mexico, has reduced both the Pecos River and the once mighty Rio Grande to a stream in some places, even dry at times. Much of West Texas has rugged terrain including many small mountain ranges while there are none in other parts of the state. West Texas contains part of the Chihuahuan Desert and also the Southern Great Plains, known as the Llano Estacado.
Politics
The area is known for its conservative politics — some of the most heavily Republican counties in the United States are located in the region, where former President George W. Bush spent his early youth. Republican candidates often win in this region by well over 70 percent of the vote. Glasscock County, for instance, gave over 90 percent of the vote to the Republican candidate in both 2004 and 2008.
This region was one of the first areas of Texas to abandon its Democratic roots; some counties (such as Midland) haven't supported a Democrat for president since 1948. However, Democrats continued to win most local races well into the 1990s.
In contrast, El Paso is heavily Democratic, and in the 2008 Presidential election, El Paso, Culberson, Reeves, Presidio, and Brewster-counties-all with large Hispanic populations-- were won by Democrat Barack Obama.
Industry
Major industries include livestock, petroleum and natural gas production, textiles such as cotton, grain farming and because of its proximity to the Mexican border, the maquiladora industry. West Texas has become notable for its numerous wind turbines producing clean, alternative electricity.
Thursday, September 17, 2009
OIL WELLS
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Overview
An oil well is a general term for any boring through the earth's surface that is designed to find and produce petroleum oil hydrocarbons. Usually some natural gas is produced along with the oil. A well designed to produce mainly or only gas may be termed a gas well.
History
The earliest known oil wells were drilled in China in 347 CE. They had depths of up to about 800 feet (240 m) and were drilled using bits attached to bamboo poles. The oil was burned to evaporate brine and produce salt. By the 10th century, extensive bamboo pipelines connected oil wells with salt springs. The ancient records of China and Japan are said to contain many allusions to the use of natural gas for lighting and heating. Petroleum was known as burning water in Japan in the 7th century.
The Middle East's petroleum industry was established by the 8th century, when the streets of the newly constructed Baghdad were paved with tar, derived from petroleum that became accessible from natural fields in the region. Petroleum was distilled by the Persian alchemist Muhammad ibn Zakarīya Rāzi (Rhazes) in the 9th century, producing chemicals such as kerosene in the alembic (al-ambiq),[and which was mainly used for kerosene lamps. Arab and Persian chemists also distilled crude oil in order to produce flammable products for military purposes. Through Islamic Spain, distillation became available in Western Europe by the 12th century.
Some sources claim that from the 9th century, oil fields were exploited in the area around modern Baku, Azerbaijan, to produce naphtha for the petroleum industry. These fields were described by Marco Polo in the 13th century, who described the output of those oil wells as hundreds of shiploads. When Marco Polo in 1264 visited the Azerbaijani city of Baku, on the shores of the Caspian Sea, he saw oil being collected from seeps. He wrote that "on the confines toward Geirgine there is a fountain from which oil springs in great abundance, inasmuch as a hundred shiploads might be taken from it at one time."
Shallow pits were dug at the Baku seeps in ancient times to facilitate collecting oil, and hand-dug holes up to 35 meters (115 ft) deep were in use by 1594. These holes were essentially oil wells. Apparently 116 of these wells in 1830 produced 3,840 metric tons (about 28000 barrels) of oil. In 1849, Russian engineer F.N. Semyenov used a cable tool to drill an oil well on the Apsheron Peninsula, ten years before Colonel Drake's famous well in Pennsylvania. Also, offshore drilling started up at Baku at Bibi-Eibat field near the end of the 19th century, about the same time that the first offshore oil well was drilled in 1896 at Summerland field on the California Coast.
The earliest oil wells in modern times were drilled percussively, by hammering a cable tool into the earth. Soon after, cable tools were replaced with rotary drilling, which could drill boreholes to much greater depths and in less time. The record-depth Kola Borehole used non-rotary mud motor drilling to achieve a depth of over 12 000 meters (38,000 ft). Until the 1970s, most oil wells were vertical, although lithological and mechanical imperfections cause most wells to deviate at least slightly from true vertical.
However, modern directional drilling technologies allow for strongly deviated wells which can, given sufficient depth and with the proper tools, actually become horizontal. This is of great value as the reservoir rocks which contain hydrocarbons are usually horizontal, or sub-horizontal; a horizontal wellbore placed in a production zone has more surface area in the production zone than a vertical well, resulting in a higher production rate. The use of deviated and horizontal drilling has also made it possible to reach reservoirs several kilometers or miles away from the drilling location (extended reach drilling), allowing for the production of hydrocarbons located below locations that are either difficult to place a drilling rig on, environmentally sensitive, or populated.
Life of a Well
The creation and life of a well can be divided up into five segments:
• Planning
• Drilling
• Completion
• Production
• Abandonment
Types of Wells
Oil wells come in many varieties. By produced fluid, there can be wells that produce oil, wells that produce oil and natural gas, or wells that only produce natural gas. Natural gas is almost always a byproduct of producing oil, since the small, light gas carbon chains come out of solution as it undergoes pressure reduction from the reservoir to the surface, similar to uncapping a bottle of soda pop where the carbon dioxide effervesces. Unwanted natural gas can be a disposal problem at the well site. If there is not a market for natural gas near the wellhead it is virtually valueless since it must be piped to the end user. Until recently, such unwanted gas was burned off at the wellsite, but due to environmental concerns this practice is becoming less common. Often, unwanted (or 'stranded' gas without a market) gas is pumped back into the reservoir with an 'injection' well for disposal or repressurizing the producing formation.
Another solution is to export the natural gas as a liquid. Gas-to-liquid, (GTL) is a developing technology that converts stranded natural gas into synthetic gasoline, diesel or jet fuel through the Fischer-Tropsch process developed in World War II Germany. Such fuels can be transported through conventional pipelines and tankers to users. Proponents claim GTL fuels burn cleaner than comparable petroleum fuels. Most major international oil companies are in advanced development stages of GTL production, with a world-scale (140,000 bbl/day) GTL plant in Qatar scheduled to come online before 2010. In locations such as the United States with a high natural gas demand, pipelines are constructed to take the gas from the wellsite to the end consumer.
Another obvious way to classify oil wells is by land or offshore wells. There is very little difference in the well itself. An offshore well targets a reservoir that happens to be underneath an ocean. Due to logistics, drilling an offshore well is far more costly than an onshore well. By far the most common type is the onshore well. These wells dot the Southern and Central Great Plains, Southwestern United States, and are the most common wells in the Middle East.
Another way to classify oil wells is by their purpose in contributing to the development of a resource. They can be characterized as:
• production wells are drilled primarily for producing oil or gas, once the producing structure and characteristics are determined
• appraisal wells are used to assess characteristics (such as flow rate) of a proven hydrocarbon accumulation
• exploration wells are drilled purely for exploratory (information gathering) purposes in a new area
• wildcat wells are those drilled outside of and not in the vicinity of known oil or gas fields.
At a producing well site, active wells may be further categorised as:
• oil producers producing predominantly liquid hydrocarbons, but mostly with some associated gas.
• gas producers producing almost entirely gaseous hydrocarbons.
• water injectors injecting water into the formation to maintain reservoir pressure or simply to dispose of water produced with the hydrocarbons because even after treatment, it would be too oily and too saline to be considered clean for dumping overboard, let alone into a fresh water source, in the case of onshore wells. Frequently water injection has an element of reservoir management and produced water disposal.
• aquifer producers intentionally producing reservoir water for re-injection to manage pressure. This is in effect moving reservoir water from where it is not as useful to where it is more useful. These wells will generally only be used if produced water from the oil or gas producers is insufficient for reservoir management purposes. Using aquifer produced water rather than sea water is due to the chemistry.
• gas injectors injecting gas into the reservoir often as a means of disposal or sequestering for later production, but also to maintain reservoir pressure.
Overview
An oil well is a general term for any boring through the earth's surface that is designed to find and produce petroleum oil hydrocarbons. Usually some natural gas is produced along with the oil. A well designed to produce mainly or only gas may be termed a gas well.
History
The earliest known oil wells were drilled in China in 347 CE. They had depths of up to about 800 feet (240 m) and were drilled using bits attached to bamboo poles. The oil was burned to evaporate brine and produce salt. By the 10th century, extensive bamboo pipelines connected oil wells with salt springs. The ancient records of China and Japan are said to contain many allusions to the use of natural gas for lighting and heating. Petroleum was known as burning water in Japan in the 7th century.
The Middle East's petroleum industry was established by the 8th century, when the streets of the newly constructed Baghdad were paved with tar, derived from petroleum that became accessible from natural fields in the region. Petroleum was distilled by the Persian alchemist Muhammad ibn Zakarīya Rāzi (Rhazes) in the 9th century, producing chemicals such as kerosene in the alembic (al-ambiq),[and which was mainly used for kerosene lamps. Arab and Persian chemists also distilled crude oil in order to produce flammable products for military purposes. Through Islamic Spain, distillation became available in Western Europe by the 12th century.
Some sources claim that from the 9th century, oil fields were exploited in the area around modern Baku, Azerbaijan, to produce naphtha for the petroleum industry. These fields were described by Marco Polo in the 13th century, who described the output of those oil wells as hundreds of shiploads. When Marco Polo in 1264 visited the Azerbaijani city of Baku, on the shores of the Caspian Sea, he saw oil being collected from seeps. He wrote that "on the confines toward Geirgine there is a fountain from which oil springs in great abundance, inasmuch as a hundred shiploads might be taken from it at one time."
Shallow pits were dug at the Baku seeps in ancient times to facilitate collecting oil, and hand-dug holes up to 35 meters (115 ft) deep were in use by 1594. These holes were essentially oil wells. Apparently 116 of these wells in 1830 produced 3,840 metric tons (about 28000 barrels) of oil. In 1849, Russian engineer F.N. Semyenov used a cable tool to drill an oil well on the Apsheron Peninsula, ten years before Colonel Drake's famous well in Pennsylvania. Also, offshore drilling started up at Baku at Bibi-Eibat field near the end of the 19th century, about the same time that the first offshore oil well was drilled in 1896 at Summerland field on the California Coast.
The earliest oil wells in modern times were drilled percussively, by hammering a cable tool into the earth. Soon after, cable tools were replaced with rotary drilling, which could drill boreholes to much greater depths and in less time. The record-depth Kola Borehole used non-rotary mud motor drilling to achieve a depth of over 12 000 meters (38,000 ft). Until the 1970s, most oil wells were vertical, although lithological and mechanical imperfections cause most wells to deviate at least slightly from true vertical.
However, modern directional drilling technologies allow for strongly deviated wells which can, given sufficient depth and with the proper tools, actually become horizontal. This is of great value as the reservoir rocks which contain hydrocarbons are usually horizontal, or sub-horizontal; a horizontal wellbore placed in a production zone has more surface area in the production zone than a vertical well, resulting in a higher production rate. The use of deviated and horizontal drilling has also made it possible to reach reservoirs several kilometers or miles away from the drilling location (extended reach drilling), allowing for the production of hydrocarbons located below locations that are either difficult to place a drilling rig on, environmentally sensitive, or populated.
Life of a Well
The creation and life of a well can be divided up into five segments:
• Planning
• Drilling
• Completion
• Production
• Abandonment
Types of Wells
Oil wells come in many varieties. By produced fluid, there can be wells that produce oil, wells that produce oil and natural gas, or wells that only produce natural gas. Natural gas is almost always a byproduct of producing oil, since the small, light gas carbon chains come out of solution as it undergoes pressure reduction from the reservoir to the surface, similar to uncapping a bottle of soda pop where the carbon dioxide effervesces. Unwanted natural gas can be a disposal problem at the well site. If there is not a market for natural gas near the wellhead it is virtually valueless since it must be piped to the end user. Until recently, such unwanted gas was burned off at the wellsite, but due to environmental concerns this practice is becoming less common. Often, unwanted (or 'stranded' gas without a market) gas is pumped back into the reservoir with an 'injection' well for disposal or repressurizing the producing formation.
Another solution is to export the natural gas as a liquid. Gas-to-liquid, (GTL) is a developing technology that converts stranded natural gas into synthetic gasoline, diesel or jet fuel through the Fischer-Tropsch process developed in World War II Germany. Such fuels can be transported through conventional pipelines and tankers to users. Proponents claim GTL fuels burn cleaner than comparable petroleum fuels. Most major international oil companies are in advanced development stages of GTL production, with a world-scale (140,000 bbl/day) GTL plant in Qatar scheduled to come online before 2010. In locations such as the United States with a high natural gas demand, pipelines are constructed to take the gas from the wellsite to the end consumer.
Another obvious way to classify oil wells is by land or offshore wells. There is very little difference in the well itself. An offshore well targets a reservoir that happens to be underneath an ocean. Due to logistics, drilling an offshore well is far more costly than an onshore well. By far the most common type is the onshore well. These wells dot the Southern and Central Great Plains, Southwestern United States, and are the most common wells in the Middle East.
Another way to classify oil wells is by their purpose in contributing to the development of a resource. They can be characterized as:
• production wells are drilled primarily for producing oil or gas, once the producing structure and characteristics are determined
• appraisal wells are used to assess characteristics (such as flow rate) of a proven hydrocarbon accumulation
• exploration wells are drilled purely for exploratory (information gathering) purposes in a new area
• wildcat wells are those drilled outside of and not in the vicinity of known oil or gas fields.
At a producing well site, active wells may be further categorised as:
• oil producers producing predominantly liquid hydrocarbons, but mostly with some associated gas.
• gas producers producing almost entirely gaseous hydrocarbons.
• water injectors injecting water into the formation to maintain reservoir pressure or simply to dispose of water produced with the hydrocarbons because even after treatment, it would be too oily and too saline to be considered clean for dumping overboard, let alone into a fresh water source, in the case of onshore wells. Frequently water injection has an element of reservoir management and produced water disposal.
• aquifer producers intentionally producing reservoir water for re-injection to manage pressure. This is in effect moving reservoir water from where it is not as useful to where it is more useful. These wells will generally only be used if produced water from the oil or gas producers is insufficient for reservoir management purposes. Using aquifer produced water rather than sea water is due to the chemistry.
• gas injectors injecting gas into the reservoir often as a means of disposal or sequestering for later production, but also to maintain reservoir pressure.
PETROLEUM INDUSTRY
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Overview
The petroleum industry includes the global processes of exploration, extraction, refining, transporting (often by oil tankers and pipelines), and marketing petroleum products. The largest volume products of the industry are fuel oil and gasoline (petrol). Petroleum is also the raw material for many chemical products, including pharmaceuticals, solvents, fertilizers, pesticides, and plastics. The industry is usually divided into three major components: upstream, midstream and downstream. Midstream operations are usually included in the downstream category.
Petroleum is vital to many industries, and is of importance to the maintenance of industrialized civilization itself, and thus is a critical concern for many nations. Oil accounts for a large percentage of the world’s energy consumption, ranging from a low of 32% for Europe and Asia, up to a high of 53% for the Middle East. Other geographic regions’ consumption patterns are as follows: South and Central America (44%), Africa (41%), and North America (40%). The world consumes 30 billion barrels (4.8 km³) of oil per year, with developed nations being the largest consumers. The United States consumed 25% of the oil produced in 2007. The production, distribution, refining, and retailing of petroleum taken as a whole represents the world's largest industry in terms of dollar value.
History
Natural History
Petroleum is a naturally occurring liquid found in rock formations. It consists of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds. It is generally accepted that oil, like other fossil fuels, formed from the fossilized remains of dead plants and animals by exposure to heat and pressure in the Earth's crust over hundreds of millions of years. Over time, the decayed residue was covered by layers of mud and silt, sinking further down into the Earth’s crust and preserved there between hot and pressured layers, gradually transforming into oil reservoirs.
Early History
Petroleum in an unrefined state has been utilized by humans for over 5000 years. Oil in general has been used since early human history to keep fires ablaze, and also for warfare. Ancient Persian language tablets indicate the medicinal and lighting uses of petroleum in the upper echelons of their society. Ancient China was also known to burn skimmed oil for light.
An early petroleum industry was established in the 8th century, when the streets of Baghdad were paved with tar, derived from petroleum through destructive distillation. In the 9th century, oil fields were exploited in the area around modern Baku, Azerbaijan, to produce naphtha. These fields were described by al-Masudi in the 10th century, and by Marco Polo in the 13th century, who described the output of those oil wells as hundreds of shiploads. Petroleum was distilled by al-Razi in the 9th century, producing chemicals such as kerosene in the alembic, which he used to invent kerosene lamps for use in the oil lamp industry.
Its importance in the world economy evolved slowly, with wood and coal used for heating and cooking, and whale oil used for lighting well into the 19th Century. A petroleum industry emerged in North America in Canada and the United States, fueling the industrial revolution. The Industrial Revolution generated an increasing need for energy which was fuelled mainly by coal, with other sources including whale oil. However, it was discovered that kerosene could be extracted from crude oil and used as a light and heating fuel. Petroleum was in great demand, and by the twentieth century had become the most valuable commodity traded on the world market.
Modern History
Imperial Russia produced 3,500 tons of oil in 1825 and doubled its output by mid-century After oil drilling began in what is now Azerbaijan in 1848, two large pipelines were built in the Russian Empire: the 833 km long pipeline to transport oil from the Caspian to the Black Sea port of Batumi (Baku-Batumi pipeline), completed in 1906, and the 162 km long pipeline to carry oil from Chechnya to the Caspian.
At the turn of the 20th century, Imperial Russia's output of oil, almost entirely from the Apsheron Peninsula, accounted for half of the world's production and dominated international markets. Nearly 200 small refineries operated in the suburbs of Baku by 1884. As a side effect of these early developments, the Apsheron Peninsula emerged as the world's "oldest legacy of oil pollution and environmental negligence." In 1878, Ludvig Nobel and his Branobel company "revolutionized oil transport" by commissioning the first oil tanker and launching it on the Caspian Sea.
The first modern oil refineries were built by Ignacy Łukasiewicz near Jasło (then in the dependent Kingdom of Galicia and Lodomeria in Central European Galicia), Poland from 1854–56. These were initially small as demand for refined fuel was limited. The refined products were used in artificial asphalt, machine oil and lubricants, in addition to Łukasiewicz's kerosene lamp. As kerosene lamps gained popularity, the refining industry grew in the area.
The first large oil refinery opened at Ploieşti, Romania in 1856.
The first oil drilling in the United States began in 1859, when oil was successfully drilled in Titusville, Pennsylvania. In the first quarter of the 20th century, the United States overtook Russia as the world's largest oil producer.
By the 1920s, oil fields had been established in many countries including Canada, Poland, Sweden, the Ukraine, the United States, and Venezuela.
In 1947, the Superior Oil Company constructed the first offshore oil platform off the Gulf Coast of Louisiana.
Environmental Impact and Future Shortages
Some petroleum industry operations have been responsible for water pollution, through by-products of refining, and oil spills.
The combustion of fossil fuels produces greenhouse gases and other air pollutants as by-products. Pollutants include nitrogen oxides, sulphur dioxide, volatile organic compounds and heavy metals.
As petroleum is a non-renewable natural resource the industry is faced with an inevitable eventual depletion of the world's oil supply. The BP Statistical Review of World Energy 2007 predicted the reserve/production ratio for proven resources worldwide. The study placed the prospective life span of reserves in the Middle East at 79.5 years, Latin America at 41.2 years and North America at only 12 years. The global reserve/production ratio estimates that at current production levels, the world's oil reserves will be depleted in 40.5 years.
The Hubbert peak theory, which introduced the concept of peak oil, questions the sustainability of oil production. It suggests that after a peak in oil production rates, a period of oil depletion will ensue.
According to research by IBISWorld, biofuels (primarily ethanol, but also biodiesel) will continue to supplement petroleum. However output levels are low, and these fuels will not displace local oil production. Ethanol is viewed as offering a lower environmental impact, and will play a small role in reducing dependence on imported crude oil. More than 90% of the ethanol used in the US is blended with gasoline to produce a 10% ethanol mix, lifting the oxygen content of the fuel.
Overview
The petroleum industry includes the global processes of exploration, extraction, refining, transporting (often by oil tankers and pipelines), and marketing petroleum products. The largest volume products of the industry are fuel oil and gasoline (petrol). Petroleum is also the raw material for many chemical products, including pharmaceuticals, solvents, fertilizers, pesticides, and plastics. The industry is usually divided into three major components: upstream, midstream and downstream. Midstream operations are usually included in the downstream category.
Petroleum is vital to many industries, and is of importance to the maintenance of industrialized civilization itself, and thus is a critical concern for many nations. Oil accounts for a large percentage of the world’s energy consumption, ranging from a low of 32% for Europe and Asia, up to a high of 53% for the Middle East. Other geographic regions’ consumption patterns are as follows: South and Central America (44%), Africa (41%), and North America (40%). The world consumes 30 billion barrels (4.8 km³) of oil per year, with developed nations being the largest consumers. The United States consumed 25% of the oil produced in 2007. The production, distribution, refining, and retailing of petroleum taken as a whole represents the world's largest industry in terms of dollar value.
History
Natural History
Petroleum is a naturally occurring liquid found in rock formations. It consists of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds. It is generally accepted that oil, like other fossil fuels, formed from the fossilized remains of dead plants and animals by exposure to heat and pressure in the Earth's crust over hundreds of millions of years. Over time, the decayed residue was covered by layers of mud and silt, sinking further down into the Earth’s crust and preserved there between hot and pressured layers, gradually transforming into oil reservoirs.
Early History
Petroleum in an unrefined state has been utilized by humans for over 5000 years. Oil in general has been used since early human history to keep fires ablaze, and also for warfare. Ancient Persian language tablets indicate the medicinal and lighting uses of petroleum in the upper echelons of their society. Ancient China was also known to burn skimmed oil for light.
An early petroleum industry was established in the 8th century, when the streets of Baghdad were paved with tar, derived from petroleum through destructive distillation. In the 9th century, oil fields were exploited in the area around modern Baku, Azerbaijan, to produce naphtha. These fields were described by al-Masudi in the 10th century, and by Marco Polo in the 13th century, who described the output of those oil wells as hundreds of shiploads. Petroleum was distilled by al-Razi in the 9th century, producing chemicals such as kerosene in the alembic, which he used to invent kerosene lamps for use in the oil lamp industry.
Its importance in the world economy evolved slowly, with wood and coal used for heating and cooking, and whale oil used for lighting well into the 19th Century. A petroleum industry emerged in North America in Canada and the United States, fueling the industrial revolution. The Industrial Revolution generated an increasing need for energy which was fuelled mainly by coal, with other sources including whale oil. However, it was discovered that kerosene could be extracted from crude oil and used as a light and heating fuel. Petroleum was in great demand, and by the twentieth century had become the most valuable commodity traded on the world market.
Modern History
Imperial Russia produced 3,500 tons of oil in 1825 and doubled its output by mid-century After oil drilling began in what is now Azerbaijan in 1848, two large pipelines were built in the Russian Empire: the 833 km long pipeline to transport oil from the Caspian to the Black Sea port of Batumi (Baku-Batumi pipeline), completed in 1906, and the 162 km long pipeline to carry oil from Chechnya to the Caspian.
At the turn of the 20th century, Imperial Russia's output of oil, almost entirely from the Apsheron Peninsula, accounted for half of the world's production and dominated international markets. Nearly 200 small refineries operated in the suburbs of Baku by 1884. As a side effect of these early developments, the Apsheron Peninsula emerged as the world's "oldest legacy of oil pollution and environmental negligence." In 1878, Ludvig Nobel and his Branobel company "revolutionized oil transport" by commissioning the first oil tanker and launching it on the Caspian Sea.
The first modern oil refineries were built by Ignacy Łukasiewicz near Jasło (then in the dependent Kingdom of Galicia and Lodomeria in Central European Galicia), Poland from 1854–56. These were initially small as demand for refined fuel was limited. The refined products were used in artificial asphalt, machine oil and lubricants, in addition to Łukasiewicz's kerosene lamp. As kerosene lamps gained popularity, the refining industry grew in the area.
The first large oil refinery opened at Ploieşti, Romania in 1856.
The first oil drilling in the United States began in 1859, when oil was successfully drilled in Titusville, Pennsylvania. In the first quarter of the 20th century, the United States overtook Russia as the world's largest oil producer.
By the 1920s, oil fields had been established in many countries including Canada, Poland, Sweden, the Ukraine, the United States, and Venezuela.
In 1947, the Superior Oil Company constructed the first offshore oil platform off the Gulf Coast of Louisiana.
Environmental Impact and Future Shortages
Some petroleum industry operations have been responsible for water pollution, through by-products of refining, and oil spills.
The combustion of fossil fuels produces greenhouse gases and other air pollutants as by-products. Pollutants include nitrogen oxides, sulphur dioxide, volatile organic compounds and heavy metals.
As petroleum is a non-renewable natural resource the industry is faced with an inevitable eventual depletion of the world's oil supply. The BP Statistical Review of World Energy 2007 predicted the reserve/production ratio for proven resources worldwide. The study placed the prospective life span of reserves in the Middle East at 79.5 years, Latin America at 41.2 years and North America at only 12 years. The global reserve/production ratio estimates that at current production levels, the world's oil reserves will be depleted in 40.5 years.
The Hubbert peak theory, which introduced the concept of peak oil, questions the sustainability of oil production. It suggests that after a peak in oil production rates, a period of oil depletion will ensue.
According to research by IBISWorld, biofuels (primarily ethanol, but also biodiesel) will continue to supplement petroleum. However output levels are low, and these fuels will not displace local oil production. Ethanol is viewed as offering a lower environmental impact, and will play a small role in reducing dependence on imported crude oil. More than 90% of the ethanol used in the US is blended with gasoline to produce a 10% ethanol mix, lifting the oxygen content of the fuel.
Tuesday, September 15, 2009
PETROLEUM (CRUDE OIL)
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Overview
Petroleum (or crude oil) is a naturally occurring, flammable liquid found in rock formations in the Earth consisting of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds.
The term "petroleum" was first used in the treatise De Natura Fossilium, published in 1546 by the German mineralogist Georg Bauer, also known as Georgius Agricola.
Composition
In its strictest sense, petroleum includes only crude oil, but in common usage it includes both crude oil and natural gas. Both crude oil and natural gas are predominantly a mixture of hydrocarbons. Under surface pressure and temperature conditions, the lighter hydrocarbons methane, ethane, propane and butane occur as gases, while the heavier ones from pentane and up are in the form of liquids or solids. However, in the underground oil reservoir the proportion which is gas or liquid varies depending on the subsurface conditions, and on the phase diagram of the petroleum mixture.
An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered as associated gas or solution gas. A gas well produces predominately natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. Under surface conditions these will condense out of the gas and form natural gas condensate, often shortened to condensate. Condensate resembles gasoline in appearance and is similar in composition to some volatile light crude oils.
The proportion of hydrocarbons in the petroleum mixture is highly variable between different oil fields and ranges from as much as 97% by weight in the lighter oils to as little as 50% in the heavier oils and bitumens.
Crude oil varies greatly in appearance depending on its composition. It is usually black or dark brown (although it may be yellowish or even greenish). In the reservoir it is usually found in association with natural gas, which being lighter forms a gas cap over the petroleum, and saline water which, being heavier than most forms of crude oil, generally sinks beneath it. Crude oil may also be found in semi-solid form mixed with sand and water, as in the Athabasca oil sands in Canada, where it is usually referred to as crude bitumen.
Petroleum is used mostly, by volume, for producing fuel oil and gasoline (petrol), both important "primary energy" sources. 84% by volume of the hydrocarbons present in petroleum is converted into energy-rich fuels (petroleum-based fuels), including gasoline, diesel, jet, heating, and other fuel oils, and liquefied petroleum gas. The lighter grades of crude oil produce the best yields of these products, but as the world's reserves of light and medium oil are depleted, oil refineries are increasingly having to process heavy oil and bitumen, and use more complex and expensive methods to produce the products required. Because heavier crude oils have too much carbon and not enough hydrogen, these processes generally involve removing carbon from or adding hydrogen to the molecules, and using fluid catalytic cracking to convert the longer, more complex molecules in the oil to the shorter, simpler ones in the fuels.
Due to its high energy density, easy transportability and relative abundance, oil has become the world's most important source of energy since the mid-1950s. Petroleum is also the raw material for many chemical products, including pharmaceuticals, solvents, fertilizers, pesticides, and plastics; the 16% not used for energy production is converted into these other materials.
Petroleum is found in porous rock formations in the upper strata of some areas of the Earth's crust. There is also petroleum in oil sands (tar sands). Known reserves of petroleum are typically estimated at around 190 km3 (1.2 trillion (short scale) barrels) without oil sands, or 595 km3 (3.74 trillion barrels) with oil sands. Consumption is currently around 84 million barrels (13.4×106 m3) per day, or 4.9 km3 per year. Because the energy return over energy invested (EROEI) ratio of oil is constantly falling (due to physical phenomena such as residual oil saturation, and the economic factor of rising marginal extraction costs), recoverable oil reserves are significantly less than total oil in place. At current consumption levels, and assuming that oil will be consumed only from reservoirs, known recoverable reserves would be gone around 2039, potentially leading to a global energy crisis. However, to date discoveries of new oil reserves have more than matched increased usage. In addition, there are factors which may extend or reduce this estimate, including the increasing demand for petroleum in developing nations, particularly China and India; further new discoveries; increased economic viability of recoveries from more difficult to exploit sources; energy conservation and use of alternative energy sources; and new economically viable exploitation of unconventional oil sources.
Formation
According to generally accepted theory, petroleum is derived from ancient biomass. The theory was initially based on the isolation of molecules from petroleum that closely resemble known biomolecules.
More specifically, crude oil and natural gas are products of heating of ancient organic materials over geological time. Formation of petroleum occurs from hydrocarbon pyrolysis, in a variety of mostly endothermic reactions at high temperature and/or pressure. Today's oil formed from the preserved remains of prehistoric zooplankton and algae, which had settled to a sea or lake bottom in large quantities under anoxic conditions (the remains of prehistoric terrestrial plants, on the other hand, tended to form coal). Over geological time the organic matter mixed with mud, and was buried under heavy layers of sediment resulting in high levels of heat and pressure. This process caused the organic matter to change, first into a waxy material known as kerogen, which is found in various oil shales around the world, and then with more heat into liquid and gaseous hydrocarbons via a process known as catagenesis.
Geologists often refer to the temperature range in which oil forms as an "oil window"—below the minimum temperature oil remains trapped in the form of kerogen, and above the maximum temperature the oil is converted to natural gas through the process of thermal cracking. Although this temperature range is found at different depths below the surface throughout the world, a typical depth for the oil window is 4–6 km. Sometimes, oil which is formed at extreme depths may migrate and become trapped at much shallower depths than where it was formed. The Athabasca Oil Sands is one example of this.
Abiogenic Origin
A number of geologists in Russia adhere to the abiogenic petroleum origin hypothesis and maintain that hydrocarbons of purely inorganic origin exist within Earth's interior. Astronomer Thomas Gold championed the theory in the Western world by supporting the work done by Nikolai Kudryavtsev in the 1950s. It is currently supported primarily by Kenney and Krayushkin.
The abiogenic origin hypothesis lacks scientific support. Extensive research into the chemical structure of kerogen has identified algae as the primary source of oil. The abiogenic origin hypothesis fails to explain the presence of these markers in kerogen and oil, as well as failing to explain how inorganic origin could be achieved at temperatures and pressures sufficient to convert kerogen to graphite. It has not been successfully used in uncovering oil deposits by geologists, as the hypothesis lacks any mechanism for determining where the process may occur. More recently scientists at the Carnegie Institution for Science have found that ethane and heavier hydrocarbons can be synthesized under conditions of the upper mantle.
Crude Oil
Crude Oil Reservoirs
Three conditions must be present for oil reservoirs to form: a source rock rich in hydrocarbon material buried deep enough for subterranean heat to cook it into oil; a porous and permeable reservoir rock for it to accumulate in; and a cap rock (seal) or other mechanism that prevents it from escaping to the surface. Within these reservoirs, fluids will typically organize themselves like a three-layer cake with a layer of water below the oil layer and a layer of gas above it, although the different layers vary in size between reservoirs. Because most hydrocarbons are lighter than rock or water, they often migrate upward through adjacent rock layers until either reaching the surface or becoming trapped within porous rocks (known as reservoirs) by impermeable rocks above. However, the process is influenced by underground water flows, causing oil to migrate hundreds of kilometres horizontally or even short distances downward before becoming trapped in a reservoir. When hydrocarbons are concentrated in a trap, an oil field forms, from which the liquid can be extracted by drilling and pumping.
The reactions that produce oil and natural gas are often modeled as first order breakdown reactions, where hydrocarbons are broken down to oil and natural gas by a set of parallel reactions, and oil eventually breaks down to natural gas by another set of reactions. The latter set is regularly used in petrochemical plants and oil refineries.
Unconventional oil reservoirs
Oil-eating bacteria biodegrades oil that has escaped to the surface. Oil sands are reservoirs of partially biodegraded oil still in the process of escaping and being biodegraded, but they contain so much migrating oil that, although most of it has escaped, vast amounts are still present—more than can be found in conventional oil reservoirs. The lighter fractions of the crude oil are destroyed first, resulting in reservoirs containing an extremely heavy form of crude oil, called crude bitumen in Canada, or extra-heavy crude oil in Venezuela. These two countries have the world's largest deposits of oil sands.
On the other hand, oil shales are source rocks that have not been exposed to heat or pressure long enough to convert their trapped hydrocarbons into crude oil. Technically speaking, oil shales are not really shales and do not really contain oil, but are usually relatively hard rocks called marls containing a waxy substance called kerogen. The kerogen trapped in the rock can be converted into crude oil using heat and pressure to simulate natural processes. The method has been known for centuries and was patented in 1694 under British Crown Patent No. 330 covering, "A way to extract and make great quantityes of pitch, tarr, and oyle out of a sort of stone." Although oil shales are found in many countries, the United States has the world's largest deposits.
Classification
The petroleum industry generally classifies crude oil by the geographic location it is produced in (e.g. West Texas Intermediate, Brent, or Oman), its API gravity (an oil industry measure of density), and by its sulfur content. Crude oil may be considered light if it has low density or heavy if it has high density; and it may be referred to as sweet if it contains relatively little sulfur or sour if it contains substantial amounts of sulfur.
The geographic location is important because it affects transportation costs to the refinery. Light crude oil is more desirable than heavy oil since it produces a higher yield of gasoline, while sweet oil commands a higher price than sour oil because it has fewer environmental problems and requires less refining to meet sulfur standards imposed on fuels in consuming countries. Each crude oil has unique molecular characteristics which are understood by the use of crude oil assay analysis in petroleum laboratories.
Barrels from an area in which the crude oil's molecular characteristics have been determined and the oil has been classified are used as pricing references throughout the world. Some of the common reference crudes are:
• West Texas Intermediate (WTI), a very high-quality, sweet, light oil delivered at Cushing, Oklahoma for North American oil
• Brent Blend, comprising 15 oils from fields in the Brent and Ninian systems in the East Shetland Basin of the North Sea. The oil is landed at Sullom Voe terminal in the Shetlands. Oil production from Europe, Africa and Middle Eastern oil flowing West tends to be priced off this oil, which forms a benchmark
• Dubai-Oman, used as benchmark for Middle East sour crude oil flowing to the Asia-Pacific region
• Tapis (from Malaysia, used as a reference for light Far East oil)
• Minas (from Indonesia, used as a reference for heavy Far East oil)
• The OPEC Reference Basket, a weighted average of oil blends from various OPEC (The Organization of the Petroleum Exporting Countries) countries
There are declining amounts of these benchmark oils being produced each year, so other oils are more commonly what is actually delivered. While the reference price may be for West Texas Intermediate delivered at Cushing, the actual oil being traded may be a discounted Canadian heavy oil delivered at Hardisty, Alberta, and for a Brent Blend delivered at the Shetlands, it may be a Russian Export Blend delivered at the port of Primorsk.
Overview
Petroleum (or crude oil) is a naturally occurring, flammable liquid found in rock formations in the Earth consisting of a complex mixture of hydrocarbons of various molecular weights, plus other organic compounds.
The term "petroleum" was first used in the treatise De Natura Fossilium, published in 1546 by the German mineralogist Georg Bauer, also known as Georgius Agricola.
Composition
In its strictest sense, petroleum includes only crude oil, but in common usage it includes both crude oil and natural gas. Both crude oil and natural gas are predominantly a mixture of hydrocarbons. Under surface pressure and temperature conditions, the lighter hydrocarbons methane, ethane, propane and butane occur as gases, while the heavier ones from pentane and up are in the form of liquids or solids. However, in the underground oil reservoir the proportion which is gas or liquid varies depending on the subsurface conditions, and on the phase diagram of the petroleum mixture.
An oil well produces predominantly crude oil, with some natural gas dissolved in it. Because the pressure is lower at the surface than underground, some of the gas will come out of solution and be recovered as associated gas or solution gas. A gas well produces predominately natural gas. However, because the underground temperature and pressure are higher than at the surface, the gas may contain heavier hydrocarbons such as pentane, hexane, and heptane in the gaseous state. Under surface conditions these will condense out of the gas and form natural gas condensate, often shortened to condensate. Condensate resembles gasoline in appearance and is similar in composition to some volatile light crude oils.
The proportion of hydrocarbons in the petroleum mixture is highly variable between different oil fields and ranges from as much as 97% by weight in the lighter oils to as little as 50% in the heavier oils and bitumens.
Crude oil varies greatly in appearance depending on its composition. It is usually black or dark brown (although it may be yellowish or even greenish). In the reservoir it is usually found in association with natural gas, which being lighter forms a gas cap over the petroleum, and saline water which, being heavier than most forms of crude oil, generally sinks beneath it. Crude oil may also be found in semi-solid form mixed with sand and water, as in the Athabasca oil sands in Canada, where it is usually referred to as crude bitumen.
Petroleum is used mostly, by volume, for producing fuel oil and gasoline (petrol), both important "primary energy" sources. 84% by volume of the hydrocarbons present in petroleum is converted into energy-rich fuels (petroleum-based fuels), including gasoline, diesel, jet, heating, and other fuel oils, and liquefied petroleum gas. The lighter grades of crude oil produce the best yields of these products, but as the world's reserves of light and medium oil are depleted, oil refineries are increasingly having to process heavy oil and bitumen, and use more complex and expensive methods to produce the products required. Because heavier crude oils have too much carbon and not enough hydrogen, these processes generally involve removing carbon from or adding hydrogen to the molecules, and using fluid catalytic cracking to convert the longer, more complex molecules in the oil to the shorter, simpler ones in the fuels.
Due to its high energy density, easy transportability and relative abundance, oil has become the world's most important source of energy since the mid-1950s. Petroleum is also the raw material for many chemical products, including pharmaceuticals, solvents, fertilizers, pesticides, and plastics; the 16% not used for energy production is converted into these other materials.
Petroleum is found in porous rock formations in the upper strata of some areas of the Earth's crust. There is also petroleum in oil sands (tar sands). Known reserves of petroleum are typically estimated at around 190 km3 (1.2 trillion (short scale) barrels) without oil sands, or 595 km3 (3.74 trillion barrels) with oil sands. Consumption is currently around 84 million barrels (13.4×106 m3) per day, or 4.9 km3 per year. Because the energy return over energy invested (EROEI) ratio of oil is constantly falling (due to physical phenomena such as residual oil saturation, and the economic factor of rising marginal extraction costs), recoverable oil reserves are significantly less than total oil in place. At current consumption levels, and assuming that oil will be consumed only from reservoirs, known recoverable reserves would be gone around 2039, potentially leading to a global energy crisis. However, to date discoveries of new oil reserves have more than matched increased usage. In addition, there are factors which may extend or reduce this estimate, including the increasing demand for petroleum in developing nations, particularly China and India; further new discoveries; increased economic viability of recoveries from more difficult to exploit sources; energy conservation and use of alternative energy sources; and new economically viable exploitation of unconventional oil sources.
Formation
According to generally accepted theory, petroleum is derived from ancient biomass. The theory was initially based on the isolation of molecules from petroleum that closely resemble known biomolecules.
More specifically, crude oil and natural gas are products of heating of ancient organic materials over geological time. Formation of petroleum occurs from hydrocarbon pyrolysis, in a variety of mostly endothermic reactions at high temperature and/or pressure. Today's oil formed from the preserved remains of prehistoric zooplankton and algae, which had settled to a sea or lake bottom in large quantities under anoxic conditions (the remains of prehistoric terrestrial plants, on the other hand, tended to form coal). Over geological time the organic matter mixed with mud, and was buried under heavy layers of sediment resulting in high levels of heat and pressure. This process caused the organic matter to change, first into a waxy material known as kerogen, which is found in various oil shales around the world, and then with more heat into liquid and gaseous hydrocarbons via a process known as catagenesis.
Geologists often refer to the temperature range in which oil forms as an "oil window"—below the minimum temperature oil remains trapped in the form of kerogen, and above the maximum temperature the oil is converted to natural gas through the process of thermal cracking. Although this temperature range is found at different depths below the surface throughout the world, a typical depth for the oil window is 4–6 km. Sometimes, oil which is formed at extreme depths may migrate and become trapped at much shallower depths than where it was formed. The Athabasca Oil Sands is one example of this.
Abiogenic Origin
A number of geologists in Russia adhere to the abiogenic petroleum origin hypothesis and maintain that hydrocarbons of purely inorganic origin exist within Earth's interior. Astronomer Thomas Gold championed the theory in the Western world by supporting the work done by Nikolai Kudryavtsev in the 1950s. It is currently supported primarily by Kenney and Krayushkin.
The abiogenic origin hypothesis lacks scientific support. Extensive research into the chemical structure of kerogen has identified algae as the primary source of oil. The abiogenic origin hypothesis fails to explain the presence of these markers in kerogen and oil, as well as failing to explain how inorganic origin could be achieved at temperatures and pressures sufficient to convert kerogen to graphite. It has not been successfully used in uncovering oil deposits by geologists, as the hypothesis lacks any mechanism for determining where the process may occur. More recently scientists at the Carnegie Institution for Science have found that ethane and heavier hydrocarbons can be synthesized under conditions of the upper mantle.
Crude Oil
Crude Oil Reservoirs
Three conditions must be present for oil reservoirs to form: a source rock rich in hydrocarbon material buried deep enough for subterranean heat to cook it into oil; a porous and permeable reservoir rock for it to accumulate in; and a cap rock (seal) or other mechanism that prevents it from escaping to the surface. Within these reservoirs, fluids will typically organize themselves like a three-layer cake with a layer of water below the oil layer and a layer of gas above it, although the different layers vary in size between reservoirs. Because most hydrocarbons are lighter than rock or water, they often migrate upward through adjacent rock layers until either reaching the surface or becoming trapped within porous rocks (known as reservoirs) by impermeable rocks above. However, the process is influenced by underground water flows, causing oil to migrate hundreds of kilometres horizontally or even short distances downward before becoming trapped in a reservoir. When hydrocarbons are concentrated in a trap, an oil field forms, from which the liquid can be extracted by drilling and pumping.
The reactions that produce oil and natural gas are often modeled as first order breakdown reactions, where hydrocarbons are broken down to oil and natural gas by a set of parallel reactions, and oil eventually breaks down to natural gas by another set of reactions. The latter set is regularly used in petrochemical plants and oil refineries.
Unconventional oil reservoirs
Oil-eating bacteria biodegrades oil that has escaped to the surface. Oil sands are reservoirs of partially biodegraded oil still in the process of escaping and being biodegraded, but they contain so much migrating oil that, although most of it has escaped, vast amounts are still present—more than can be found in conventional oil reservoirs. The lighter fractions of the crude oil are destroyed first, resulting in reservoirs containing an extremely heavy form of crude oil, called crude bitumen in Canada, or extra-heavy crude oil in Venezuela. These two countries have the world's largest deposits of oil sands.
On the other hand, oil shales are source rocks that have not been exposed to heat or pressure long enough to convert their trapped hydrocarbons into crude oil. Technically speaking, oil shales are not really shales and do not really contain oil, but are usually relatively hard rocks called marls containing a waxy substance called kerogen. The kerogen trapped in the rock can be converted into crude oil using heat and pressure to simulate natural processes. The method has been known for centuries and was patented in 1694 under British Crown Patent No. 330 covering, "A way to extract and make great quantityes of pitch, tarr, and oyle out of a sort of stone." Although oil shales are found in many countries, the United States has the world's largest deposits.
Classification
The petroleum industry generally classifies crude oil by the geographic location it is produced in (e.g. West Texas Intermediate, Brent, or Oman), its API gravity (an oil industry measure of density), and by its sulfur content. Crude oil may be considered light if it has low density or heavy if it has high density; and it may be referred to as sweet if it contains relatively little sulfur or sour if it contains substantial amounts of sulfur.
The geographic location is important because it affects transportation costs to the refinery. Light crude oil is more desirable than heavy oil since it produces a higher yield of gasoline, while sweet oil commands a higher price than sour oil because it has fewer environmental problems and requires less refining to meet sulfur standards imposed on fuels in consuming countries. Each crude oil has unique molecular characteristics which are understood by the use of crude oil assay analysis in petroleum laboratories.
Barrels from an area in which the crude oil's molecular characteristics have been determined and the oil has been classified are used as pricing references throughout the world. Some of the common reference crudes are:
• West Texas Intermediate (WTI), a very high-quality, sweet, light oil delivered at Cushing, Oklahoma for North American oil
• Brent Blend, comprising 15 oils from fields in the Brent and Ninian systems in the East Shetland Basin of the North Sea. The oil is landed at Sullom Voe terminal in the Shetlands. Oil production from Europe, Africa and Middle Eastern oil flowing West tends to be priced off this oil, which forms a benchmark
• Dubai-Oman, used as benchmark for Middle East sour crude oil flowing to the Asia-Pacific region
• Tapis (from Malaysia, used as a reference for light Far East oil)
• Minas (from Indonesia, used as a reference for heavy Far East oil)
• The OPEC Reference Basket, a weighted average of oil blends from various OPEC (The Organization of the Petroleum Exporting Countries) countries
There are declining amounts of these benchmark oils being produced each year, so other oils are more commonly what is actually delivered. While the reference price may be for West Texas Intermediate delivered at Cushing, the actual oil being traded may be a discounted Canadian heavy oil delivered at Hardisty, Alberta, and for a Brent Blend delivered at the Shetlands, it may be a Russian Export Blend delivered at the port of Primorsk.
OIL REFINERY
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Overview
An oil refinery is an industrial process plant where crude oil is processed and refined into more useful petroleum products, such as gasoline, diesel fuel, asphalt base, heating oil, kerosene, and liquefied petroleum gas. Oil refineries are typically large sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units.
Operation
Raw or unprocessed crude oil is not generally useful. Although "light, sweet" (low viscosity, low sulfur) crude oil has been used directly as a burner fuel for steam vessel propulsion, the lighter elements form explosive vapors in the fuel tanks and are therefore hazardous, especially in warships. Instead, the hundreds of different hydrocarbon molecules in crude oil are separated in a refinery into components which can be used as fuels, lubricants, and as feedstock in petrochemical processes that manufacture such products as plastics, detergents, solvents, elastomers and fibers such as nylon and polyesters.
Petroleum fossil fuels are burned in internal combustion engines to provide power for ships, automobiles, aircraft engines, lawn mowers, chainsaws, and other machines. Different boiling points allow the hydrocarbons to be separated by distillation. Since the lighter liquid products are in great demand for use in internal combustion engines, a modern refinery will convert heavy hydrocarbons and lighter gaseous elements into these higher value products.
Oil can be used in a variety of ways because it contains hydrocarbons of varying molecular masses, forms and lengths such as paraffins, aromatics, naphthenes (or cycloalkanes), alkenes, dienes, and alkynes. While the molecules in crude oil include different atoms such as sulfur and nitrogen, the hydrocarbons are the most common form of molecules, which are molecules of varying lengths and complexity made of hydrogen and carbon atoms, and a small number of oxygen atoms. The differences in the structure of these molecules account for their varying physical and chemical properties, and it is this variety that makes crude oil useful in a broad range of applications.
Once separated and purified of any contaminants and impurities, the fuel or lubricant can be sold without further processing. Smaller molecules such as isobutane and propylene or butylenes can be recombined to meet specific octane requirements by processes such as alkylation, or less commonly, dimerization. Octane grade of gasoline can also be improved by catalytic reforming, which involves removing hydrogen from hydrocarbons producing compounds with higher octane ratings such as aromatics. Intermediate products such as gasoils can even be reprocessed to break a heavy, long-chained oil into a lighter short-chained one, by various forms of cracking such as fluid catalytic cracking, thermal cracking, and hydrocracking. The final step in gasoline production is the blending of fuels with different octane ratings, vapor pressures, and other properties to meet product specifications.
Oil refineries are large scale plants, processing about a hundred thousand to several hundred thousand barrels of crude oil a day. Because of the high capacity, many of the units operate continuously, as opposed to processing in batches, at steady state or nearly steady state for months to years. The high capacity also makes process optimization and advanced process control very desirable.
Major Products
Petroleum products are usually grouped into three categories: light distillates (LPG, gasoline, naphtha), middle distillates (kerosene, diesel), heavy distillates and residuum (heavy fuel oil, lubricating oils, wax, tar). This classification is based on the way crude oil is distilled and separated into fractions (called distillates and residuum).
• Liquid petroleum gas (LPG)
• Gasoline (also known as petrol)
• Naphtha
• Kerosene and related jet aircraft fuels
• Diesel fuel
• Fuel oils
• Lubricating oils
• Paraffin wax
• Asphalt and Tar
• Petroleum coke
Common Process Units Found In A Refinery
The number and nature of the process units in a refinery determine its complexity index.
• Desalter unit washes out salt from the crude oil before it enters the atmospheric distillation unit.
• Atmospheric Distillation unit distills crude oil into fractions. See Continuous distillation.
• Vacuum Distillation unit further distills residual bottoms after atmospheric distillation.
• Naphtha Hydrotreater unit uses hydrogen to desulfurize naphtha from atmospheric distillation. Must hydrotreat the naphtha before sending to a Catalytic Reformer unit.
• Catalytic Reformer unit is used to convert the naphtha-boiling range molecules into higher octane reformate (reformer product). The reformate has higher content of aromatics and cyclic hydrocarbons). An important byproduct of a reformer is hydrogen released during the catalyst reaction. The hydrogen is used either in the hydrotreaters or the hydrocracker.
• Distillate Hydrotreater unit desulfurizes distillates (such as diesel) after atmospheric distillation.
• Fluid Catalytic Cracker (FCC) unit upgrades heavier fractions into lighter, more valuable products.
• Hydrocracker unit uses hydrogen to upgrade heavier fractions into lighter, more valuable products.
• Visbreaking unit upgrades heavy residual oils by thermally cracking them into lighter, more valuable reduced viscosity products.
• Merox unit treats LPG, kerosene or jet fuel by oxidizing mercaptans to organic disulfides.
• Coking units (delayed coking, fluid coker, and flexicoker) process very heavy residual oils into gasoline and diesel fuel, leaving petroleum coke as a residual product.
• Alkylation unit produces high-octane component for gasoline blending.
• Dimerization unit converts olefins into higher-octane gasoline blending components. For example, butenes can be dimerized into isooctene which may subsequently be hydrogenated to form isooctane. There are also other uses for dimerization.
• Isomerization unit converts linear molecules to higher-octane branched molecules for blending into gasoline or feed to alkylation units.
• Steam reforming unit produces hydrogen for the hydrotreaters or hydrocracker.
• Liquified gas storage units for propane and similar gaseous fuels at pressure sufficient to maintain in liquid form. These are usually spherical vessels or bullets (horizontal vessels with rounded ends.
• Storage tanks for crude oil and finished products, usually cylindrical, with some sort of vapor emission control and surrounded by an earthen berm to contain spills.
• Amine gas treater, Claus unit, and tail gas treatment for converting hydrogen sulfide from hydrodesulfurization into elemental sulfur.
• Utility units such as cooling towers for circulating cooling water, boiler plants for steam generation, instrument air systems for pneumatically operated control valves and an electrical substation.
• Wastewater collection and treating systems consisting of API separators, dissolved air flotation (DAF) units and some type of further treatment (such as an activated sludge biotreater) to make such water suitable for reuse or for disposal.
• Solvent refining units use solvent such as cresol or furfural to remove unwanted, mainly asphaltenic materials from lubricating oil stock (or diesel stock).
• Solvent dewaxing units remove the heavy waxy constituents petrolatum from vacuum distillation products.
Overview
An oil refinery is an industrial process plant where crude oil is processed and refined into more useful petroleum products, such as gasoline, diesel fuel, asphalt base, heating oil, kerosene, and liquefied petroleum gas. Oil refineries are typically large sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units.
Operation
Raw or unprocessed crude oil is not generally useful. Although "light, sweet" (low viscosity, low sulfur) crude oil has been used directly as a burner fuel for steam vessel propulsion, the lighter elements form explosive vapors in the fuel tanks and are therefore hazardous, especially in warships. Instead, the hundreds of different hydrocarbon molecules in crude oil are separated in a refinery into components which can be used as fuels, lubricants, and as feedstock in petrochemical processes that manufacture such products as plastics, detergents, solvents, elastomers and fibers such as nylon and polyesters.
Petroleum fossil fuels are burned in internal combustion engines to provide power for ships, automobiles, aircraft engines, lawn mowers, chainsaws, and other machines. Different boiling points allow the hydrocarbons to be separated by distillation. Since the lighter liquid products are in great demand for use in internal combustion engines, a modern refinery will convert heavy hydrocarbons and lighter gaseous elements into these higher value products.
Oil can be used in a variety of ways because it contains hydrocarbons of varying molecular masses, forms and lengths such as paraffins, aromatics, naphthenes (or cycloalkanes), alkenes, dienes, and alkynes. While the molecules in crude oil include different atoms such as sulfur and nitrogen, the hydrocarbons are the most common form of molecules, which are molecules of varying lengths and complexity made of hydrogen and carbon atoms, and a small number of oxygen atoms. The differences in the structure of these molecules account for their varying physical and chemical properties, and it is this variety that makes crude oil useful in a broad range of applications.
Once separated and purified of any contaminants and impurities, the fuel or lubricant can be sold without further processing. Smaller molecules such as isobutane and propylene or butylenes can be recombined to meet specific octane requirements by processes such as alkylation, or less commonly, dimerization. Octane grade of gasoline can also be improved by catalytic reforming, which involves removing hydrogen from hydrocarbons producing compounds with higher octane ratings such as aromatics. Intermediate products such as gasoils can even be reprocessed to break a heavy, long-chained oil into a lighter short-chained one, by various forms of cracking such as fluid catalytic cracking, thermal cracking, and hydrocracking. The final step in gasoline production is the blending of fuels with different octane ratings, vapor pressures, and other properties to meet product specifications.
Oil refineries are large scale plants, processing about a hundred thousand to several hundred thousand barrels of crude oil a day. Because of the high capacity, many of the units operate continuously, as opposed to processing in batches, at steady state or nearly steady state for months to years. The high capacity also makes process optimization and advanced process control very desirable.
Major Products
Petroleum products are usually grouped into three categories: light distillates (LPG, gasoline, naphtha), middle distillates (kerosene, diesel), heavy distillates and residuum (heavy fuel oil, lubricating oils, wax, tar). This classification is based on the way crude oil is distilled and separated into fractions (called distillates and residuum).
• Liquid petroleum gas (LPG)
• Gasoline (also known as petrol)
• Naphtha
• Kerosene and related jet aircraft fuels
• Diesel fuel
• Fuel oils
• Lubricating oils
• Paraffin wax
• Asphalt and Tar
• Petroleum coke
Common Process Units Found In A Refinery
The number and nature of the process units in a refinery determine its complexity index.
• Desalter unit washes out salt from the crude oil before it enters the atmospheric distillation unit.
• Atmospheric Distillation unit distills crude oil into fractions. See Continuous distillation.
• Vacuum Distillation unit further distills residual bottoms after atmospheric distillation.
• Naphtha Hydrotreater unit uses hydrogen to desulfurize naphtha from atmospheric distillation. Must hydrotreat the naphtha before sending to a Catalytic Reformer unit.
• Catalytic Reformer unit is used to convert the naphtha-boiling range molecules into higher octane reformate (reformer product). The reformate has higher content of aromatics and cyclic hydrocarbons). An important byproduct of a reformer is hydrogen released during the catalyst reaction. The hydrogen is used either in the hydrotreaters or the hydrocracker.
• Distillate Hydrotreater unit desulfurizes distillates (such as diesel) after atmospheric distillation.
• Fluid Catalytic Cracker (FCC) unit upgrades heavier fractions into lighter, more valuable products.
• Hydrocracker unit uses hydrogen to upgrade heavier fractions into lighter, more valuable products.
• Visbreaking unit upgrades heavy residual oils by thermally cracking them into lighter, more valuable reduced viscosity products.
• Merox unit treats LPG, kerosene or jet fuel by oxidizing mercaptans to organic disulfides.
• Coking units (delayed coking, fluid coker, and flexicoker) process very heavy residual oils into gasoline and diesel fuel, leaving petroleum coke as a residual product.
• Alkylation unit produces high-octane component for gasoline blending.
• Dimerization unit converts olefins into higher-octane gasoline blending components. For example, butenes can be dimerized into isooctene which may subsequently be hydrogenated to form isooctane. There are also other uses for dimerization.
• Isomerization unit converts linear molecules to higher-octane branched molecules for blending into gasoline or feed to alkylation units.
• Steam reforming unit produces hydrogen for the hydrotreaters or hydrocracker.
• Liquified gas storage units for propane and similar gaseous fuels at pressure sufficient to maintain in liquid form. These are usually spherical vessels or bullets (horizontal vessels with rounded ends.
• Storage tanks for crude oil and finished products, usually cylindrical, with some sort of vapor emission control and surrounded by an earthen berm to contain spills.
• Amine gas treater, Claus unit, and tail gas treatment for converting hydrogen sulfide from hydrodesulfurization into elemental sulfur.
• Utility units such as cooling towers for circulating cooling water, boiler plants for steam generation, instrument air systems for pneumatically operated control valves and an electrical substation.
• Wastewater collection and treating systems consisting of API separators, dissolved air flotation (DAF) units and some type of further treatment (such as an activated sludge biotreater) to make such water suitable for reuse or for disposal.
• Solvent refining units use solvent such as cresol or furfural to remove unwanted, mainly asphaltenic materials from lubricating oil stock (or diesel stock).
• Solvent dewaxing units remove the heavy waxy constituents petrolatum from vacuum distillation products.
OPEC
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
The Organization of the Petroleum Exporting Countries, OPEC; is a cartel of twelve countries made up of Algeria, Angola, Ecuador, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, and Venezuela. OPEC has maintained its headquarters in Vienna since 1965, and hosts regular meetings among the oil ministers of its Member Countries. Indonesia withdrew its membership in OPEC in 2008 after it became a net importer of oil, but stated it would likely return if it became a net exporter in the world again.
According to its statutes, one of the principal goals is the determination of the best means for safeguarding the cartel's interests, individually and collectively. It also pursues ways and means of ensuring the stabilization of prices in international oil markets with a view to eliminating harmful and unnecessary fluctuations; giving due regard at all times to the interests of the producing nations and to the necessity of securing a steady income to the producing countries; an efficient and regular supply of petroleum to consuming nations, and a fair return on their capital to those investing in the petroleum industry.
OPEC's influence on the market has been widely criticized, since it became effective in determining production and prices. Arab members of OPEC alarmed the developed world and when they used the “oil weapon” during the Yom Kippur War by implementing oil embargoes and initiating the 1973 oil crisis. Although largely political explanations for the timing and extent of the OPEC price increases are also valid, from OPEC’s point of view, these changes were triggered largely by previous unilateral changes in the world financial system and the ensuing period of high inflation in both the developed and developing world. This explanation encompasses OPEC actions both before and after the outbreak of hostilities in October 1973, and concludes that “OPEC countries were only “staying even” by dramatically raising the dollar price of oil.
OPEC decisions have had considerable influence on international oil prices. For example, in the 1973 energy crisis OPEC refused to ship oil to western countries that had supported Israel in the Yom Kippur War or 6 Day War, which they fought against Egypt and Syria. This refusal caused a fourfold increase in the price of oil, which lasted five months, starting on October 17, 1973, and ending on March 18, 1974. OPEC nations then agreed, on January 7, 1975, to raise crude oil prices by 10%. At that time, OPEC nations — including many whom had recently nationalized their oil industries — joined the call for a new international economic order to be initiated by coalitions of primary producers. Concluding the First OPEC Summit in Algiers they called for stable and just commodity prices, an international food and agriculture program, technology transfer from North to South, and the democratization of the economic system. Overall, the evidence suggests that OPEC did act as a cartel, when it adopted output rationing in order to maintain price.
The Organization of the Petroleum Exporting Countries, OPEC; is a cartel of twelve countries made up of Algeria, Angola, Ecuador, Iran, Iraq, Kuwait, Libya, Nigeria, Qatar, Saudi Arabia, the United Arab Emirates, and Venezuela. OPEC has maintained its headquarters in Vienna since 1965, and hosts regular meetings among the oil ministers of its Member Countries. Indonesia withdrew its membership in OPEC in 2008 after it became a net importer of oil, but stated it would likely return if it became a net exporter in the world again.
According to its statutes, one of the principal goals is the determination of the best means for safeguarding the cartel's interests, individually and collectively. It also pursues ways and means of ensuring the stabilization of prices in international oil markets with a view to eliminating harmful and unnecessary fluctuations; giving due regard at all times to the interests of the producing nations and to the necessity of securing a steady income to the producing countries; an efficient and regular supply of petroleum to consuming nations, and a fair return on their capital to those investing in the petroleum industry.
OPEC's influence on the market has been widely criticized, since it became effective in determining production and prices. Arab members of OPEC alarmed the developed world and when they used the “oil weapon” during the Yom Kippur War by implementing oil embargoes and initiating the 1973 oil crisis. Although largely political explanations for the timing and extent of the OPEC price increases are also valid, from OPEC’s point of view, these changes were triggered largely by previous unilateral changes in the world financial system and the ensuing period of high inflation in both the developed and developing world. This explanation encompasses OPEC actions both before and after the outbreak of hostilities in October 1973, and concludes that “OPEC countries were only “staying even” by dramatically raising the dollar price of oil.
OPEC decisions have had considerable influence on international oil prices. For example, in the 1973 energy crisis OPEC refused to ship oil to western countries that had supported Israel in the Yom Kippur War or 6 Day War, which they fought against Egypt and Syria. This refusal caused a fourfold increase in the price of oil, which lasted five months, starting on October 17, 1973, and ending on March 18, 1974. OPEC nations then agreed, on January 7, 1975, to raise crude oil prices by 10%. At that time, OPEC nations — including many whom had recently nationalized their oil industries — joined the call for a new international economic order to be initiated by coalitions of primary producers. Concluding the First OPEC Summit in Algiers they called for stable and just commodity prices, an international food and agriculture program, technology transfer from North to South, and the democratization of the economic system. Overall, the evidence suggests that OPEC did act as a cartel, when it adopted output rationing in order to maintain price.
ENERMAX, INC.
EnerMax, Inc. is an independent Texas oil and natural gas company specializing in the exploration and development of fossil fuel reserves. Our operations are focused on the petroleum rich regions of Texas and Louisiana. Our motto, "Exploring today for a better tomorrow," is more than just a tagline. It is our mission. We strive to increase proven domestic reserves, and we do this by exploring new fields and revisiting previously drilled areas to discover them anew with advanced technology.
Texas oil drilling is an historical endeavor - a necessary endeavor which we are proud to pursue. EnerMax is steeped in the culture of the Old West and the historical pursuit of one of the world's most important natural resources. Every step of our operations, from oil drilling to recovery, is handled by experts who respect this world-renowned Texas tradition.
Oil and gas speculations have captured the focus of the investment market. This is because all sectors of business are deeply affected by the price and availability of fossil fuels. Oil and gas investments have performed well over the past several years as commodity prices continue in a steady overall uptrend, and the projected growth rate of nations such as China and India indicate a continuation of this trend. In fact, growing concerns about increasing energy demands from developing nations are causing many nations to seek more energy independence.
In this complex energy market, EnerMax is consistently developing oil and gas prospects that have a solid geological foundation and risk/reward profile. We have assembled a team of recognized experts to evaluate our projects from every angle. With our team's ingenuity and the advantage of new technological innovations, we are developing maximum leverage for the recovery of domestic oil and gas reserves.
Mission Statement
"Exploring today for a better tomorrow."
Company History
In 2001, Bret Boteler founded EnerMax, Inc. with a desire to set a new standard of quality for independent Texas oil and gas producers. Bret believed that communicating openly and frequently with his partners provided a better way of doing business. The partners agreed, and their support encouraged EnerMax to seek larger, more rewarding projects. As the company grew, Bret recruited talented, committed employees by creating a company profit sharing program that directly ties each employee to the success of each drilling project. As a result of his strategy, EnerMax has become an industry leader in Texas oil exploration, drilling and development.
EnerMax began by offering its partners the opportunity to participate in projects sponsored by its industry partners. This approach was well-received. However, in response to its partners' desires for more "direct-cost" projects, EnerMax began to explore in-house prospect generation.
Today, EnerMax has operations in Texas and Louisiana. Although future acquisitions are projected, our current holdings will provide us with enough prospects to drill consistently over the next 7-10 years. At EnerMax, we remain committed to our original vision and dedication to quality as we forge ahead to even greater success.
Guiding Principles
Family
We treat our partners and employees as family. Our family is important to us and each member receives the respect and attention they deserve. We work diligently to ensure that our partners receive value from all that we do. We invite into our family only intelligent, motivated and ethical employees who pursue excellence and growth. We provide tools and resources for each to grow both personally and professionally and we celebrate each person's success by rewarding them for their results.
Integrity
We conduct our daily lives always mindful to treat others as we wish to be treated. Each member of our family understands the importance of conducting themselves in accordance with the highest moral and ethical standards possible at work, at home and in our community.
Communication
We demand of ourselves the open and honest communication of our actions and intentions that all our partners deserve. We strive to foster an atmosphere of openness, accessibility, responsiveness and accountability in all of our communication throughout the organization.
Foresight
We commit ourselves to strengthening the value of our partners' holdings. To accomplish this, we react quickly to trends within the industry and strategically position ourselves to take advantage of new business opportunities. By investing alongside our partners, we also ensure that our focus is continually on the most profitable means of exploration, development, and recovery.
President – Bret Boteler
Bret Boteler, founder and President of EnerMax, Inc., has a diverse background in oil & gas exploration and development as well as other business activities. Mr. Boteler graduated from Southwest Texas State University with a BBA in Management. While there he participated in a Cooperative Education Program with General Dynamics, a major defense contractor based in Fort Worth, Texas. After graduating, Bret worked there for five years as a purchaser of high performance electronics for the F-16 Fighter. From 1991 to 1995, he worked for a local oil and gas firm that was involved in drilling vertical, horizontal and offshore wells. From 1996 to 1998, Bret served as Vice President of Client Relations for TBX Resources, a publicly traded oil and gas company specializing in production acquisition. In 1999, he founded Ghivit.com, Inc., a Dallas based company specializing in prepaid fuel and gift cards. In 2003, Ghivit.com was sold to a prominent Chicago-based company that dominates the prepaid fuel card industry. In 2001, Bret founded EnerMax, Inc. to capitalize on the growing demand for natural resources. Since then, he has been responsible for directing the company to develop two proprietary filtering processes which locate major oil deposits which were previously undetected by older technologies.
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) is proud to have EnerMax, Inc. is an industry partner.
Texas oil drilling is an historical endeavor - a necessary endeavor which we are proud to pursue. EnerMax is steeped in the culture of the Old West and the historical pursuit of one of the world's most important natural resources. Every step of our operations, from oil drilling to recovery, is handled by experts who respect this world-renowned Texas tradition.
Oil and gas speculations have captured the focus of the investment market. This is because all sectors of business are deeply affected by the price and availability of fossil fuels. Oil and gas investments have performed well over the past several years as commodity prices continue in a steady overall uptrend, and the projected growth rate of nations such as China and India indicate a continuation of this trend. In fact, growing concerns about increasing energy demands from developing nations are causing many nations to seek more energy independence.
In this complex energy market, EnerMax is consistently developing oil and gas prospects that have a solid geological foundation and risk/reward profile. We have assembled a team of recognized experts to evaluate our projects from every angle. With our team's ingenuity and the advantage of new technological innovations, we are developing maximum leverage for the recovery of domestic oil and gas reserves.
Mission Statement
"Exploring today for a better tomorrow."
Company History
In 2001, Bret Boteler founded EnerMax, Inc. with a desire to set a new standard of quality for independent Texas oil and gas producers. Bret believed that communicating openly and frequently with his partners provided a better way of doing business. The partners agreed, and their support encouraged EnerMax to seek larger, more rewarding projects. As the company grew, Bret recruited talented, committed employees by creating a company profit sharing program that directly ties each employee to the success of each drilling project. As a result of his strategy, EnerMax has become an industry leader in Texas oil exploration, drilling and development.
EnerMax began by offering its partners the opportunity to participate in projects sponsored by its industry partners. This approach was well-received. However, in response to its partners' desires for more "direct-cost" projects, EnerMax began to explore in-house prospect generation.
Today, EnerMax has operations in Texas and Louisiana. Although future acquisitions are projected, our current holdings will provide us with enough prospects to drill consistently over the next 7-10 years. At EnerMax, we remain committed to our original vision and dedication to quality as we forge ahead to even greater success.
Guiding Principles
Family
We treat our partners and employees as family. Our family is important to us and each member receives the respect and attention they deserve. We work diligently to ensure that our partners receive value from all that we do. We invite into our family only intelligent, motivated and ethical employees who pursue excellence and growth. We provide tools and resources for each to grow both personally and professionally and we celebrate each person's success by rewarding them for their results.
Integrity
We conduct our daily lives always mindful to treat others as we wish to be treated. Each member of our family understands the importance of conducting themselves in accordance with the highest moral and ethical standards possible at work, at home and in our community.
Communication
We demand of ourselves the open and honest communication of our actions and intentions that all our partners deserve. We strive to foster an atmosphere of openness, accessibility, responsiveness and accountability in all of our communication throughout the organization.
Foresight
We commit ourselves to strengthening the value of our partners' holdings. To accomplish this, we react quickly to trends within the industry and strategically position ourselves to take advantage of new business opportunities. By investing alongside our partners, we also ensure that our focus is continually on the most profitable means of exploration, development, and recovery.
President – Bret Boteler
Bret Boteler, founder and President of EnerMax, Inc., has a diverse background in oil & gas exploration and development as well as other business activities. Mr. Boteler graduated from Southwest Texas State University with a BBA in Management. While there he participated in a Cooperative Education Program with General Dynamics, a major defense contractor based in Fort Worth, Texas. After graduating, Bret worked there for five years as a purchaser of high performance electronics for the F-16 Fighter. From 1991 to 1995, he worked for a local oil and gas firm that was involved in drilling vertical, horizontal and offshore wells. From 1996 to 1998, Bret served as Vice President of Client Relations for TBX Resources, a publicly traded oil and gas company specializing in production acquisition. In 1999, he founded Ghivit.com, Inc., a Dallas based company specializing in prepaid fuel and gift cards. In 2003, Ghivit.com was sold to a prominent Chicago-based company that dominates the prepaid fuel card industry. In 2001, Bret founded EnerMax, Inc. to capitalize on the growing demand for natural resources. Since then, he has been responsible for directing the company to develop two proprietary filtering processes which locate major oil deposits which were previously undetected by older technologies.
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) is proud to have EnerMax, Inc. is an industry partner.
DRILLING RIGS
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Overview
A drilling rig is a machine which creates holes (usually called boreholes) and/or shafts in the ground. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells or they can be small enough to be moved manually by one person. They sample sub-surface mineral deposits, test rock, soil and groundwater physical properties, and also can be used to install sub-surface fabrications, such as underground utilities, instrumentation, tunnels or wells. Drilling rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land or marine-based structures (such as oil platforms, commonly called 'offshore oil rigs' even if they don't contain a drilling rig). The term "rig" therefore generally refers to the complex of equipment that is used to penetrate the surface of the earth's crust.
Drilling rigs can be:
• Small and portable, such as those used in mineral exploration drilling, water wells and environmental investigations.
• Huge, capable of drilling through thousands of meters of the Earth's crust.
Large "mud pumps" circulate drilling mud (slurry) through the drill bit and up the casing annulus, for cooling and removing the "cuttings" while a well is drilled. Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or natural gas; and in remote locations there can be permanent living accommodation and catering for crews (which may be more than a hundred). Marine rigs may operate many hundreds of miles or kilometres distant from the supply base with infrequent crew rotation.
Petroleum Drilling Industry
Oil and Natural Gas drilling rigs can be used not only to identify geologic reservoirs but also to create holes that allow the extraction of oil or natural gas from those reservoirs. Primarily in onshore oil and gas fields once a well has been drilled, the drilling rig will be moved off of the well and a service rig (a smaller rig) that is purpose-built for completions will be moved on to the well to get the well on line. This frees up the drilling rig to drill another hole and streamlines the operation as well as allowing for specialization of certain services, i.e., completions vs. drilling.
History
Until internal combustion engines came in the late 19th century, the main method for drilling rock was muscle power of man or animal. Rods were turned by hand, using clamps attached to the rod. The rope and drop method invented in Zigong, China used a steel rod or piston raised and dropped vertically via a rope. Mechanised versions of this persisted until about 1970, using a cam to rapidly raise and drop what, by then, was a steel cable.
In the 1970s, outside of the oil and gas industry, roller bits using mud circulation were replaced by the first efficient pneumatic reciprocating piston Reverse Circulation RC drills, and became essentially obsolete for most shallow drilling, and are now only used in certain situations where rocks preclude other methods. RC drilling proved much faster and more efficient, and continues to improve with better metallurgy, deriving harder, more durable bits, and compressors delivering higher air pressures at higher volumes, enabling deeper and faster penetration. Diamond drilling has remained essentially unchanged since its inception.
Mobile Drilling Rigs
In early oil exploration, drilling rigs were semi-permanent in nature and the derricks were often built on site and left in place after the completion of the well. In more recent times drilling rigs are expensive custom-built machines that can be moved from well to well. Some light duty drilling rigs are like a mobile crane and are more usually used to drill water wells. Larger land rigs must be broken apart into sections and loads to move to a new place, a process which can often take weeks.
Small mobile drilling rigs are also used to drill or bore piles. Rigs can range from 100 ton continuous flight auger (CFA) rigs to small air powered rigs used to drill holes in quarries, etc. These rigs use the same technology and equipment as the oil drilling rigs, just on a smaller scale.
The drilling mechanisms outlined below differ mechanically in terms of the machinery used, but also in terms of the method by which drill cuttings are removed from the cutting face of the drill and returned to surface.
Drilling Rig Classification
There are many types and designs of drilling rigs, with many drilling rigs capable of switching or combining different drilling technologies as needed. Drilling rigs can be described using any of the following attributes:
by power used
• mechanical - the rig uses torque converters, clutches, and transmissions powered by its own engines, often diesel
• electric - the major items of machinery are driven by electric motors, usually with power generated on-site using internal combustion engines
• hydraulic - the rig primarily uses hydraulic power
• pneumatic - the rig is primarily powered by pressurized air
• steam - the rig uses steam-powered engines and pumps (obsolescent after middle of 20th Century)
by pipe used
• cable - a cable is used to raise and drop the drill bit
• conventional - uses metal or plastic drill pipe of varying types
• coil tubing - uses a giant coil of tube and a downhole drilling motor
by height
• single - can drill only single drill pipes. The presence or absence of vertical pipe racking "fingers" varies from rig to rig.
• double - can hold a stand of pipe in the derrick consisting of two connected drill pipes, called a "double stand".
• triple - can hold a stand of pipe in the derrick consisting of three connected drill pipes, called a "triple stand".
by method of rotation or drilling method
• no rotation includes direct push rigs and most service rigs
• rotary table - rotation is achieved by turning a square or hexagonal pipe (the kelly) at drill floor level.
• top-drive - rotation and circulation is done at the top of the drillstring, on a motor that moves in a track along the derrick.
• sonic - uses primarily vibratory energy to advance the drill string
• hammer - uses rotation and percussive force
by position of derrick
• conventional - derrick is vertical
• slant - derrick is slanted at a 45 degree angle to facilitate horizontal drilling
Limits of the Technology
Drill technology has advanced steadily since the 19th century. However, there are several basic limiting factors which will determine the depth to which a bore hole can be sunk.
All holes must maintain outer diameter; the diameter of the hole must remain wider than the diameter of the rods or the rods cannot turn in the hole and progress cannot continue. Friction caused by the drilling operation will tend to reduce the outside diameter of the drill bit. This applies to all drilling methods, except that in diamond core drilling the use of thinner rods and casing may permit the hole to continue. Casing is simply a hollow sheath which protects the hole against collapse during drilling, and is made of metal or PVC. Often diamond holes will start off at a large diameter and when outside diameter is lost, thinner rods put down inside casing to continue, until finally the hole becomes too narrow. Alternatively, the hole can be reamed; this is the usual practice in oil well drilling where the hole size is maintained down to the next casing point.
For percussion techniques, the main limitation is air pressure. Air must be delivered to the piston at sufficient pressure to activate the reciprocating action, and in turn drive the head into the rock with sufficient strength to fracture and pulverise it. With depth, volume is added to the in-rod string, requiring larger compressors to achieve operational pressures. Secondly, groundwater is ubiquitous, and increases in pressure with depth in the ground. The air inside the rod string must be pressurised enough to overcome this water pressure at the bit face. Then, the air must be able to carry the rock fragments to surface. This is why depths in excess of 500 m for reverse circulation drilling are rarely achieved, because the cost is prohibitive and approaches the threshold at which diamond core drilling is more economic.
Diamond drilling can routinely achieve depths in excess of 1200 m. In cases where money is no issue, extreme depths have been achieved because there is no requirement to overcome water pressure. However, circulation must be maintained to return the drill cuttings to surface, and more importantly to maintain cooling and lubrication of the cutting surface. Without sufficient lubrication and cooling, the matrix of the drill bit will soften. While diamond is one of the hardest substances known, at 10 on the Mohs hardness scale, it must remain firmly in the matrix to achieve cutting. Weight on bit, the force exerted on the cutting face of the bit by the drill rods in the hole above the bit, must also be monitored.
Overview
A drilling rig is a machine which creates holes (usually called boreholes) and/or shafts in the ground. Drilling rigs can be massive structures housing equipment used to drill water wells, oil wells, or natural gas extraction wells or they can be small enough to be moved manually by one person. They sample sub-surface mineral deposits, test rock, soil and groundwater physical properties, and also can be used to install sub-surface fabrications, such as underground utilities, instrumentation, tunnels or wells. Drilling rigs can be mobile equipment mounted on trucks, tracks or trailers, or more permanent land or marine-based structures (such as oil platforms, commonly called 'offshore oil rigs' even if they don't contain a drilling rig). The term "rig" therefore generally refers to the complex of equipment that is used to penetrate the surface of the earth's crust.
Drilling rigs can be:
• Small and portable, such as those used in mineral exploration drilling, water wells and environmental investigations.
• Huge, capable of drilling through thousands of meters of the Earth's crust.
Large "mud pumps" circulate drilling mud (slurry) through the drill bit and up the casing annulus, for cooling and removing the "cuttings" while a well is drilled. Hoists in the rig can lift hundreds of tons of pipe. Other equipment can force acid or sand into reservoirs to facilitate extraction of the oil or natural gas; and in remote locations there can be permanent living accommodation and catering for crews (which may be more than a hundred). Marine rigs may operate many hundreds of miles or kilometres distant from the supply base with infrequent crew rotation.
Petroleum Drilling Industry
Oil and Natural Gas drilling rigs can be used not only to identify geologic reservoirs but also to create holes that allow the extraction of oil or natural gas from those reservoirs. Primarily in onshore oil and gas fields once a well has been drilled, the drilling rig will be moved off of the well and a service rig (a smaller rig) that is purpose-built for completions will be moved on to the well to get the well on line. This frees up the drilling rig to drill another hole and streamlines the operation as well as allowing for specialization of certain services, i.e., completions vs. drilling.
History
Until internal combustion engines came in the late 19th century, the main method for drilling rock was muscle power of man or animal. Rods were turned by hand, using clamps attached to the rod. The rope and drop method invented in Zigong, China used a steel rod or piston raised and dropped vertically via a rope. Mechanised versions of this persisted until about 1970, using a cam to rapidly raise and drop what, by then, was a steel cable.
In the 1970s, outside of the oil and gas industry, roller bits using mud circulation were replaced by the first efficient pneumatic reciprocating piston Reverse Circulation RC drills, and became essentially obsolete for most shallow drilling, and are now only used in certain situations where rocks preclude other methods. RC drilling proved much faster and more efficient, and continues to improve with better metallurgy, deriving harder, more durable bits, and compressors delivering higher air pressures at higher volumes, enabling deeper and faster penetration. Diamond drilling has remained essentially unchanged since its inception.
Mobile Drilling Rigs
In early oil exploration, drilling rigs were semi-permanent in nature and the derricks were often built on site and left in place after the completion of the well. In more recent times drilling rigs are expensive custom-built machines that can be moved from well to well. Some light duty drilling rigs are like a mobile crane and are more usually used to drill water wells. Larger land rigs must be broken apart into sections and loads to move to a new place, a process which can often take weeks.
Small mobile drilling rigs are also used to drill or bore piles. Rigs can range from 100 ton continuous flight auger (CFA) rigs to small air powered rigs used to drill holes in quarries, etc. These rigs use the same technology and equipment as the oil drilling rigs, just on a smaller scale.
The drilling mechanisms outlined below differ mechanically in terms of the machinery used, but also in terms of the method by which drill cuttings are removed from the cutting face of the drill and returned to surface.
Drilling Rig Classification
There are many types and designs of drilling rigs, with many drilling rigs capable of switching or combining different drilling technologies as needed. Drilling rigs can be described using any of the following attributes:
by power used
• mechanical - the rig uses torque converters, clutches, and transmissions powered by its own engines, often diesel
• electric - the major items of machinery are driven by electric motors, usually with power generated on-site using internal combustion engines
• hydraulic - the rig primarily uses hydraulic power
• pneumatic - the rig is primarily powered by pressurized air
• steam - the rig uses steam-powered engines and pumps (obsolescent after middle of 20th Century)
by pipe used
• cable - a cable is used to raise and drop the drill bit
• conventional - uses metal or plastic drill pipe of varying types
• coil tubing - uses a giant coil of tube and a downhole drilling motor
by height
• single - can drill only single drill pipes. The presence or absence of vertical pipe racking "fingers" varies from rig to rig.
• double - can hold a stand of pipe in the derrick consisting of two connected drill pipes, called a "double stand".
• triple - can hold a stand of pipe in the derrick consisting of three connected drill pipes, called a "triple stand".
by method of rotation or drilling method
• no rotation includes direct push rigs and most service rigs
• rotary table - rotation is achieved by turning a square or hexagonal pipe (the kelly) at drill floor level.
• top-drive - rotation and circulation is done at the top of the drillstring, on a motor that moves in a track along the derrick.
• sonic - uses primarily vibratory energy to advance the drill string
• hammer - uses rotation and percussive force
by position of derrick
• conventional - derrick is vertical
• slant - derrick is slanted at a 45 degree angle to facilitate horizontal drilling
Limits of the Technology
Drill technology has advanced steadily since the 19th century. However, there are several basic limiting factors which will determine the depth to which a bore hole can be sunk.
All holes must maintain outer diameter; the diameter of the hole must remain wider than the diameter of the rods or the rods cannot turn in the hole and progress cannot continue. Friction caused by the drilling operation will tend to reduce the outside diameter of the drill bit. This applies to all drilling methods, except that in diamond core drilling the use of thinner rods and casing may permit the hole to continue. Casing is simply a hollow sheath which protects the hole against collapse during drilling, and is made of metal or PVC. Often diamond holes will start off at a large diameter and when outside diameter is lost, thinner rods put down inside casing to continue, until finally the hole becomes too narrow. Alternatively, the hole can be reamed; this is the usual practice in oil well drilling where the hole size is maintained down to the next casing point.
For percussion techniques, the main limitation is air pressure. Air must be delivered to the piston at sufficient pressure to activate the reciprocating action, and in turn drive the head into the rock with sufficient strength to fracture and pulverise it. With depth, volume is added to the in-rod string, requiring larger compressors to achieve operational pressures. Secondly, groundwater is ubiquitous, and increases in pressure with depth in the ground. The air inside the rod string must be pressurised enough to overcome this water pressure at the bit face. Then, the air must be able to carry the rock fragments to surface. This is why depths in excess of 500 m for reverse circulation drilling are rarely achieved, because the cost is prohibitive and approaches the threshold at which diamond core drilling is more economic.
Diamond drilling can routinely achieve depths in excess of 1200 m. In cases where money is no issue, extreme depths have been achieved because there is no requirement to overcome water pressure. However, circulation must be maintained to return the drill cuttings to surface, and more importantly to maintain cooling and lubrication of the cutting surface. Without sufficient lubrication and cooling, the matrix of the drill bit will soften. While diamond is one of the hardest substances known, at 10 on the Mohs hardness scale, it must remain firmly in the matrix to achieve cutting. Weight on bit, the force exerted on the cutting face of the bit by the drill rods in the hole above the bit, must also be monitored.
Friday, September 11, 2009
LIVE VIDEO STREAM
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) and EnerMax are excited to inform their partners that drilling operations of the Seisma and EnerMax West Janice #1 project will be broadcast live via video stream direct from the drill site and derrick of the West Janice #1 Project, and then, all future Seisma and EnerMax Projects that are forthcoming. This is all a part of the continuing efforts by Seisma and EnerMax to remain at the forefront of the oil and gas industry, fulfill their mission, and to bring in better results time and time again.
Justin Solomon, President and managing partner of Seisma Energy Research AVV had this comment when asked about the new video technology. “By utilizing our Drillsite Broadcast’s streaming video technology, in conjunction with our Neofirma OperationsMaster services, we are now able to afford our partners an unprecedented amount of time-sensitive information that they can draw on to remain 100% up to date on the progress of their investment as drilling takes place.” Solomon continued to elaborate, “Other than inviting them to
SEISMA ENERGY RESEARCH, AVV
When called upon to bring our partners preeminent and technically sound state-of-the-art oil and gas-drilling programs, Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) continues to deliver - barrel upon barrel. Seisma Energy Research, AVV was conceived, engineered and developed to become a global conduit for an increasingly demanding industry. Seisma's focus continues to be on expanding partnerships and opening world markets.
Through our unique corporate structure we are able to offer opportunities to prospective partners and clients that have, until our arrival in the market place, been historically unattainable by many around the globe. Supported by decades of executive experience, industry knowledge and the best technology has to offer, we continue to develop and expand our partnerships and our portfolio of energy focused investments.
Seisma Energy’s principal responsibility to its clients is to intelligently acquire, operate, explore, exploit and develop oil and gas properties. Our portfolio of projects include production, exploration, pipelines, water rights, and a new value added emphasis on renewable energies such as ethanol and bio-diesel. We continually strive to be on the cutting edge of our industry and among its elite leaders.
Our group’s operations are carried out predominantly in the Mid-Continent Region,
CRACKING OIL
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Overview
In petroleum geology and chemistry, cracking is the process whereby complex organic molecules such as kerogens or heavy hydrocarbons are broken down into simpler molecules (e.g. light hydrocarbons) by the breaking of carbon-carbon bonds in the precursors. The rate of cracking and the end products are strongly dependent on the temperature and presence of any catalysts. Cracking, also referred to as pyrolysis, is the breakdown of a large alkane into smaller, more useful alkanes and an alkene. Simply put, hydrocarbons cracking is the process of breaking long chain hydrocarbons into short ones.
History
In 1855, petroleum cracking methods were pioneered by American chemistry professor, Benjamin Silliman, Jr., of Sheffield Scientific School (SSS) at Yale University.
The first thermal cracking method, the Shukhov cracking process, was invented by Russian engineer Vladimir Shukhov, in the Russian empire, Patent No. 12926, November 27, 1891.
Eugene Houdry, a French mechanical engineer, pioneered catalytic cracking and developed the first commercially successful process after emigrating to the United States. The first commercial plant was built in 1936. His process doubled the amount of gasoline that could be produced from a barrel of crude oil.
Applications
Oil refinery cracking processes allow the production of "light" products such as LPG and gasoline from heavier crude oil distillation fractions such as gas oils and residues. Fluid catalytic cracking produces a high yield of gasoline and LPG, while hydrocracking is a major source of jet fuel, diesel, naphtha and LPG.
Thermal cracking is currently used to "upgrade" very heavy fractions ("upgrading", "visbreaking"), or to produce light fractions or distillates, burner fuel and/or petroleum coke. Two extremes of the thermal cracking in terms of product range are represented by the high-temperature process called "steam cracking" or pyrolysis (ca. 750 to 900 °C or more) which produces valuable ethylene and other feedstocks for the petrochemical industry, and the milder-temperature delayed coking (ca. 500 °C) which can produce, under the right conditions, valuable needle coke, a highly crystalline petroleum coke used in the production of electrodes for the steel and aluminium industries.
Thursday, September 10, 2009
PEAK OIL
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
— William J. Cummings, Exxon-Mobil company spokesman, December 2005
— Sadad I. Al Husseini, former VP of Aramco, presentation to the Oil and Money conference, October 2007
GREG GUMBEL INTERVIEW
Seisma Oil Research, Greg Gumbel Interview
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) invites you to watch this interview by Greg Gumbel. Enjoy!
http://www.toffsworld.com/business/investments/oil-and-gas-global-financial-investment-opportunities/
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) invites you to watch this interview by Greg Gumbel. Enjoy!
http://www.toffsworld.com/business/investments/oil-and-gas-global-financial-investment-opportunities/
WEST TEXAS INTERMEDIATE (WTI)
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
West Texas Intermediate (WTI), also known as Texas Light Sweet, is a type of crude oil used as a benchmark in oil pricing and the underlying commodity of New York Mercantile Exchange's oil futures contracts.
This oil type is often referenced in North American news reports about oil prices, alongside North Sea Brent Crude. Other important oil markers include the Dubai Crude and the OPEC Reference Basket.
WTI is a light crude, lighter than Brent crude. It contains about 0.24% sulfur, rating it a sweet crude, again sweeter than Brent. Its properties and production site make it ideal for being refined in the United States, mostly in the Midwest and Gulf Coast regions. WTI has an API gravity of around 39.6 (specific gravity of around 0.827).
Typical price difference per barrel is about $1 more than Brent, and $2 more than OPEC basket. Although WTI is expected to command a higher price than Brent crude, on May 24 2007, it was priced at $63.58 per barrel as against $71.39 per barrel for Brent (Bloomberg). The change in price differential may have been due to a temporary shortage of refining capacity; on April 13, WTI Crude at Cushing may have temporarily lost its status as the gauge of world oil prices. A large stockpile of oil at the Cushing, Oklahoma storage and pricing facility (mainly due to a refinery shutdown) caused prices to be artificially depressed at the Cushing pricing point. As stockpiles reduced, the WTI price increased to exceed Brent once again.
West Texas Intermediate (WTI), also known as Texas Light Sweet, is a type of crude oil used as a benchmark in oil pricing and the underlying commodity of New York Mercantile Exchange's oil futures contracts.
This oil type is often referenced in North American news reports about oil prices, alongside North Sea Brent Crude. Other important oil markers include the Dubai Crude and the OPEC Reference Basket.
WTI is a light crude, lighter than Brent crude. It contains about 0.24% sulfur, rating it a sweet crude, again sweeter than Brent. Its properties and production site make it ideal for being refined in the United States, mostly in the Midwest and Gulf Coast regions. WTI has an API gravity of around 39.6 (specific gravity of around 0.827).
Typical price difference per barrel is about $1 more than Brent, and $2 more than OPEC basket. Although WTI is expected to command a higher price than Brent crude, on May 24 2007, it was priced at $63.58 per barrel as against $71.39 per barrel for Brent (Bloomberg). The change in price differential may have been due to a temporary shortage of refining capacity; on April 13, WTI Crude at Cushing may have temporarily lost its status as the gauge of world oil prices. A large stockpile of oil at the Cushing, Oklahoma storage and pricing facility (mainly due to a refinery shutdown) caused prices to be artificially depressed at the Cushing pricing point. As stockpiles reduced, the WTI price increased to exceed Brent once again.
Tuesday, September 8, 2009
REFLECTION SEISMOLOGY
Seisma Energy Research, AVV (formerly Seisma Oil Research, LLC) presents this article as part of a series of articles on understanding the energy business. We hope you enjoy this series.
Reflection Seismology (or Seismic Reflection) is a method of exploration geophysics that uses the principles of seismology to estimate the properties of the Earth's subsurface from reflected seismic waves. The method requires a controlled seismic source of energy, such as dynamite/Tovex, a specialized air gun or vibrators, commonly known by their trademark name Vibroseis. By noting the time it takes for a reflection to arrive at a receiver, it is possible to estimate the depth of the feature that generated the reflection. In this way, reflection seismology is similar to sonar and echolocation.
Reflection Experiments
A reflection experiment is carried out by initiating a seismic source (such as a dynamite explosion) and recording the reflected waves using one or more seismometers. On land, the typical seismometer used in a reflection experiment is a small, portable instrument known as a geophone, which converts ground motion into an analog electrical signal. In water, hydrophones, which convert pressure changes into electrical signals, are used. As the seismometers detect the arrival of the seismic waves, the signals are converted to digital form and recorded; early systems recorded the analog signals directly onto magnetic tape, photographic film, or paper. The signals may then be displayed by a computer as seismograms for interpretation by a seismologist. Typically, the recorded signals are subjected to significant amounts of signal processing and various imaging processes before they are ready to be interpreted. In general, the more complex the geology of the area under study, the more sophisticated are the techniques required to perform the data processing. Modern reflection seismic surveys require large amounts of computer processing, often performed on supercomputers or on computer clusters.
Hydrocarbon exploration
Reflection seismology, or 'seismic' as it is more commonly referred to by the oil industry, is used to map the subsurface structure of rock formations. Seismic technology is used by geologists and geophysicists who interpret the data to map structural traps that could potentially contain hydrocarbons. Seismic exploration is the primary method of exploring for hydrocarbon deposits, on land, under the sea and in the transition zone (the interface area between the sea and land). Although the technology of exploration activities has improved exponentially in the past 20 years, the basic principles for acquiring seismic data have remained the same.
In simple terms and for all of the exploration environments, the general principle is to send sound energy waves (using an energy source like dynamite or Vibroseis) into the Earth, where the different layers within the Earth's crust reflect back this energy. These reflected energy waves are recorded over a predetermined time period (called the record length) by using hydrophones in water and geophones on land. The reflected signals are output onto a storage medium, which is usually magnetic tape. The general principle is similar to recording voice data using a microphone onto a tape recorder for a set period of time. Once the data is recorded onto tape, it can then be processed using specialist software which will result in processed seismic profiles being produced. These profiles or data sets can then be interpreted for possible hydrocarbon reserves.
Land crews tend to be quite large entities, employing anywhere from a few hundred to a few thousand people. They normally require substantial logistical support to cover not only the seismic operation itself, but also to support the main camp (for catering, waste management and disposal, camp accommodations, washing facilities, water supply, laundry etc), fly camps (temporary camps set up away from the main camp on large land seismic operations, for example where the distance is too far to drive back to the main camp with vibrator trucks), all of the crews vehicles (maintenance, fuel, spares etc), security, possible helicopter operations, restocking of the explosive magazine, medical support and many other logistical and support functions.
Land surveys require crews to deploy the hundreds or thousands of geophones necessary to record the data. Most surveys today are conducted by laying out a two-dimensional array of geophones together with a two-dimensional pattern of source points. This allows the interpreter to create a three-dimensional image of the geology beneath the array, so these are called 3D surveys. Less expensive survey methods use one-dimensional lines of geophones that only allowed the interpreter to make two-dimensional cross-sections.
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