Michael E Brownfield
Scientist Emeritus, Central Energy Resources Science Center
Science and Products
Filter Total Items: 169
In-Place Oil Shale Resources Underlying Federal Lands in the Piceance Basin, Western Colorado
Using a geologic-based assessment methodology, the U.S. Geological Survey estimated an in-place oil shale resource of 1.07 trillion barrels under Federal mineral rights, or 70 percent of the total oil shale in place, in the Piceance Basin, Colorado. More than 67 percent of the total oil shale in-place resource, or 1.027 trillion barrels, is under Federal surface management.
Authors
Tracey J. Mercier, Ronald C. Johnson, Michael E. Brownfield, Jesse G. Self
Assessment of In-Place Oil Shale Resources of the Green River Formation, Uinta Basin, Utah and Colorado
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a total of 1.32 trillion barrels of oil in place in 18 oil shale zones in the Eocene Green River Formation in the Uinta Basin, Utah and Colorado.
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield, Jesse G. Self
Assessment of Undiscovered Oil and Gas Resources of the Nile Delta Basin Province, Eastern Mediterranean
The U.S. Geological Survey estimated means of 1.8 billion barrels of recoverable oil, 223 trillion cubic feet of recoverable gas, and 6 billion barrels of natural gas liquids in the Nile Delta Basin Province using a geology-based assessment methodology.
Authors
Mark A. Kirschbaum, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Michael E. Brownfield, Janet K. Pitman, Troy A. Cook, Marilyn E. Tennyson
Assessment of undiscovered oil and gas resources of four west Africa geologic provinces
Four geologic provinces located along the northwest and west-central coast of Africa recently were assessed for undiscovered oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 71.7 billion barrels of oil, 187.2 trillion cubic feet of natural
Authors
Michael E. Brownfield, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Janet K. Pitman, Richard M. Pollastro, Christopher J. Schenk, Marilyn E. Tennyson
Assessment of Undiscovered Hydrocarbon Resources of the Western Oregon and Washington Province
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 2.2 trillion cubic feet (TCF) of undiscovered natural gas and 15 million barrels of oil (MMBO) in the Western Oregon and Washington Province. More than 67 percent, or 1.5 TCF, of the undiscovered natural gas is continuous gas estimated to be coalbed gas in Tertiary coals in western Oregon and Washing
Authors
Michael E. Brownfield, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
Assessment of in-place oil shale resources of the Green River Formation, Piceance Basin, western Colorado
The U.S. Geological Survey (USGS) recently completed a reassessment of in-place oil shale resources, regardless of richness, in the Eocene Green River Formation in the Piceance Basin, western Colorado. A considerable amount of oil-yield data has been collected after previous in-place assessments were published, and these data were incorporated into this new assessment. About twice as many oil-yiel
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield, Michael P. Pantea, Jesse G. Self
Nahcolite resources in the Green River Formation, Piceance Basin, northwestern Colorado
The U.S. Geological Survey (USGS) recently completed an assessment of in-place nahcolite (NaHCO3) resources in the Piceance Basin, northwestern Colorado. Nahcolite is present in the oil shale deposits of the Parachute Creek Member of the Eocene Green River Formation. It occurs as disseminated aggregates, nodules, bedded units of disseminated brown crystals, and white crystalline beds associated wi
Authors
Michael E. Brownfield, Ronald C. Johnson, Jesse G. Self, Tracey J. Mercier
An estimate of recoverable heavy oil resources of the Orinoco Oil Belt, Venezuela
The Orinoco Oil Belt Assessment Unit of the La Luna-Quercual Total Petroleum System encompasses approximately 50,000 km2 of the East Venezuela Basin Province that is underlain by more than 1 trillion barrels of heavy oil-in-place. As part of a program directed at estimating the technically recoverable oil and gas resources of priority petroleum basins worldwide, the U.S. Geological Survey estimate
Authors
Christopher J. Schenk, Troy A. Cook, Ronald R. Charpentier, Richard M. Pollastro, Timothy R. Klett, Marilyn E. Tennyson, Mark A. Kirschbaum, Michael E. Brownfield, Janet K. Pitman
The Yampa Bed — A regionally extensive tonstein in the Williams Fork Formation, northwestern Piceance Creek and southern Sand Wash Basins, Colorado
A regionally persistent and distinctive unit of Upper Cretaceous age is here formally named the Yampa Bed of the Williams Fork Formation for exposures in the Yampa, Danforth Hills, and Grand Hogback coal fields, Moffat and Routt Counties, northwest Colorado; the name is derived from the Yampa River valley. The type section was measured in the NE¼ SW¼ sec. 6, T. 5 N., R. 91 W., about 8 miles south
Authors
Michael E. Brownfield, Edward A. Johnson
Ensuring food security - response
No abstract available.
Authors
Michael E. Brownfield, Christopher C. Funk, James P. Verdin, Gary Eilerts
Assessment of Undiscovered Gas Resources of the Eastern Oregon and Washington Province, 2006
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 2.4 trillion cubic feet (TCF) of undiscovered natural gas in the Eastern Oregon and Washington Province. More than 90 percent, or 2.1 TCF, of the estimated undiscovered natural gas is continuous gas estimated to be trapped in Tertiary rocks overlain by the Columbia River Basalt Group.
Authors
Michael E. Brownfield, Marilyn E. Tennyson, Thomas S. Ahlbrandt, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
Geology and total petroleum systems of the Gulf of Guinea province of West Africa
The U.S. Geological Survey (USGS) assessed the potential for undiscovered conventional oil and gas resources in the Gulf of Guinea Province, west-central Africa, as part of its World Petroleum Assessment 2000. The USGS estimated a mean of 1,004 million barrels of conventional undiscovered oil, 10,071 billion cubic feet of gas, and 282 million barrels of natural gas liquids. Most of the hydrocarbon
Authors
Michael E. Brownfield, Ronald R. Charpentier
Science and Products
Filter Total Items: 169
In-Place Oil Shale Resources Underlying Federal Lands in the Piceance Basin, Western Colorado
Using a geologic-based assessment methodology, the U.S. Geological Survey estimated an in-place oil shale resource of 1.07 trillion barrels under Federal mineral rights, or 70 percent of the total oil shale in place, in the Piceance Basin, Colorado. More than 67 percent of the total oil shale in-place resource, or 1.027 trillion barrels, is under Federal surface management.
Authors
Tracey J. Mercier, Ronald C. Johnson, Michael E. Brownfield, Jesse G. Self
Assessment of In-Place Oil Shale Resources of the Green River Formation, Uinta Basin, Utah and Colorado
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a total of 1.32 trillion barrels of oil in place in 18 oil shale zones in the Eocene Green River Formation in the Uinta Basin, Utah and Colorado.
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield, Jesse G. Self
Assessment of Undiscovered Oil and Gas Resources of the Nile Delta Basin Province, Eastern Mediterranean
The U.S. Geological Survey estimated means of 1.8 billion barrels of recoverable oil, 223 trillion cubic feet of recoverable gas, and 6 billion barrels of natural gas liquids in the Nile Delta Basin Province using a geology-based assessment methodology.
Authors
Mark A. Kirschbaum, Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Michael E. Brownfield, Janet K. Pitman, Troy A. Cook, Marilyn E. Tennyson
Assessment of undiscovered oil and gas resources of four west Africa geologic provinces
Four geologic provinces located along the northwest and west-central coast of Africa recently were assessed for undiscovered oil, natural gas, and natural gas liquids resources as part of the U.S. Geological Survey's (USGS) World Oil and Gas Assessment. Using a geology-based assessment methodology, the USGS estimated mean volumes of 71.7 billion barrels of oil, 187.2 trillion cubic feet of natural
Authors
Michael E. Brownfield, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Janet K. Pitman, Richard M. Pollastro, Christopher J. Schenk, Marilyn E. Tennyson
Assessment of Undiscovered Hydrocarbon Resources of the Western Oregon and Washington Province
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 2.2 trillion cubic feet (TCF) of undiscovered natural gas and 15 million barrels of oil (MMBO) in the Western Oregon and Washington Province. More than 67 percent, or 1.5 TCF, of the undiscovered natural gas is continuous gas estimated to be coalbed gas in Tertiary coals in western Oregon and Washing
Authors
Michael E. Brownfield, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
Assessment of in-place oil shale resources of the Green River Formation, Piceance Basin, western Colorado
The U.S. Geological Survey (USGS) recently completed a reassessment of in-place oil shale resources, regardless of richness, in the Eocene Green River Formation in the Piceance Basin, western Colorado. A considerable amount of oil-yield data has been collected after previous in-place assessments were published, and these data were incorporated into this new assessment. About twice as many oil-yiel
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield, Michael P. Pantea, Jesse G. Self
Nahcolite resources in the Green River Formation, Piceance Basin, northwestern Colorado
The U.S. Geological Survey (USGS) recently completed an assessment of in-place nahcolite (NaHCO3) resources in the Piceance Basin, northwestern Colorado. Nahcolite is present in the oil shale deposits of the Parachute Creek Member of the Eocene Green River Formation. It occurs as disseminated aggregates, nodules, bedded units of disseminated brown crystals, and white crystalline beds associated wi
Authors
Michael E. Brownfield, Ronald C. Johnson, Jesse G. Self, Tracey J. Mercier
An estimate of recoverable heavy oil resources of the Orinoco Oil Belt, Venezuela
The Orinoco Oil Belt Assessment Unit of the La Luna-Quercual Total Petroleum System encompasses approximately 50,000 km2 of the East Venezuela Basin Province that is underlain by more than 1 trillion barrels of heavy oil-in-place. As part of a program directed at estimating the technically recoverable oil and gas resources of priority petroleum basins worldwide, the U.S. Geological Survey estimate
Authors
Christopher J. Schenk, Troy A. Cook, Ronald R. Charpentier, Richard M. Pollastro, Timothy R. Klett, Marilyn E. Tennyson, Mark A. Kirschbaum, Michael E. Brownfield, Janet K. Pitman
The Yampa Bed — A regionally extensive tonstein in the Williams Fork Formation, northwestern Piceance Creek and southern Sand Wash Basins, Colorado
A regionally persistent and distinctive unit of Upper Cretaceous age is here formally named the Yampa Bed of the Williams Fork Formation for exposures in the Yampa, Danforth Hills, and Grand Hogback coal fields, Moffat and Routt Counties, northwest Colorado; the name is derived from the Yampa River valley. The type section was measured in the NE¼ SW¼ sec. 6, T. 5 N., R. 91 W., about 8 miles south
Authors
Michael E. Brownfield, Edward A. Johnson
Ensuring food security - response
No abstract available.
Authors
Michael E. Brownfield, Christopher C. Funk, James P. Verdin, Gary Eilerts
Assessment of Undiscovered Gas Resources of the Eastern Oregon and Washington Province, 2006
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 2.4 trillion cubic feet (TCF) of undiscovered natural gas in the Eastern Oregon and Washington Province. More than 90 percent, or 2.1 TCF, of the estimated undiscovered natural gas is continuous gas estimated to be trapped in Tertiary rocks overlain by the Columbia River Basalt Group.
Authors
Michael E. Brownfield, Marilyn E. Tennyson, Thomas S. Ahlbrandt, Ronald R. Charpentier, Troy A. Cook, Timothy R. Klett, Richard M. Pollastro, Christopher J. Schenk
Geology and total petroleum systems of the Gulf of Guinea province of West Africa
The U.S. Geological Survey (USGS) assessed the potential for undiscovered conventional oil and gas resources in the Gulf of Guinea Province, west-central Africa, as part of its World Petroleum Assessment 2000. The USGS estimated a mean of 1,004 million barrels of conventional undiscovered oil, 10,071 billion cubic feet of gas, and 282 million barrels of natural gas liquids. Most of the hydrocarbon
Authors
Michael E. Brownfield, Ronald R. Charpentier