Michael E Brownfield
Scientist Emeritus, Central Energy Resources Science Center
Science and Products
Filter Total Items: 169
Assessment of unconventional oil and gas resources in Northeast Mexico, 2014
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 0.78 billion barrels of unconventional oil, 23.5 trillion cubic feet of unconventional gas, and 0.88 billion barrels of natural gas liquids in the Sabinas Basin, Burgos Basin, and Tampico-Misantla Basin provinces of northeast Mexico.
Authors
Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Marilyn E. Tennyson, Stephanie B. Gaswirth, Michael E. Brownfield, Mark J. Pawlewicz, Jean Noe Weaver
Assessment of undiscovered, technically recoverable oil and gas resources of Armenia, 2014
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 1 million barrels of undiscovered, technically recoverable conventional oil and 6 billion cubic feet of undiscovered, technically recoverable conventional natural gas in Armenia.
Authors
Timothy R. Klett, Christopher J. Schenk, Craig J. Wandrey, Michael E. Brownfield, Ronald R. Charpentier, Marilyn E. Tennyson, Donald L. Gautier
Histograms showing variations in oil yield, water yield, and specific gravity of oil from Fischer assay analyses of oil-shale drill cores and cuttings from the Piceance Basin, northwestern Colorado
Recent studies indicate that the Piceance Basin in northwestern Colorado contains over 1.5 trillion barrels of oil in place, making the basin the largest known oil-shale deposit in the world. Previously published histograms display oil-yield variations with depth and widely correlate rich and lean oil-shale beds and zones throughout the basin. Histograms in this report display oil-yield data plott
Authors
John D. Dietrich, Michael E. Brownfield, Ronald C. Johnson, Tracey J. Mercier
Spatial and stratigraphic distribution of water in oil shale of the Green River Formation using Fischer assay, Piceance Basin, northwestern Colorado
The spatial and stratigraphic distribution of water in oil shale of the Eocene Green River Formation in the Piceance Basin of northwestern Colorado was studied in detail using some 321,000 Fischer assay analyses in the U.S. Geological Survey oil-shale database. The oil-shale section was subdivided into 17 roughly time-stratigraphic intervals, and the distribution of water in each interval was asse
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield
Assessment of potential unconventional lacustrine shale-oil and shale-gas resources, Phitsanulok Basin, Thailand, 2014
Using a geology-based assessment methodology, the U.S. Geological Survey assessed potential technically recoverable mean resources of 53 million barrels of shale oil and 320 billion cubic feet of shale gas in the Phitsanulok Basin, onshore Thailand.
Authors
Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Tracey J. Mercier, Marilyn E. Tennyson, Janet K. Pitman, Michael E. Brownfield
Spatial and stratigraphic distribution of water in oil shale of the Green River Formation using Fischer Assay, Piceance Basin, northwestern Colorado
The spatial and stratigraphic distribution of water in oil shale of the Eocene Green River Formation in the Piceance Basin of northwestern Colorado was studied in detail using some 321,000 Fischer assay analyses in the U.S. Geological Survey oil-shale database. The oil-shale section was subdivided into 17 roughly time-stratigraphic intervals, and the distribution of water in each interval was asse
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield
Assessment of potential shale oil and tight sandstone gas resources of the Assam, Bombay, Cauvery, and Krishna-Godavari Provinces, India, 2013
Using a well performance-based geologic assessment methodology, the U.S. Geological Survey estimated a technically recoverable mean volume of 62 million barrels of oil in shale oil reservoirs, and more than 3,700 billion cubic feet of gas in tight sandstone gas reservoirs in the Bombay and Krishna-Godavari Provinces of India. The term “provinces” refer to geologically defined units assessed by the
Authors
Timothy R. Klett, Christopher J. Schenk, Craig J. Wandrey, Michael E. Brownfield, Ronald R. Charpentier, Marilyn E. Tennyson, Donald L. Gautier
In-place oil shale resources in the saline-mineral and saline-leached intervals, Parachute Creek Member of the Green River Formation, Piceance Basin, Colorado
A recent U.S. Geological Survey analysis of the Green River Formation of the Piceance Basin in western Colorado shows that about 920 and 352 billion barrels of oil are potentially recoverable from oil shale resources using oil-yield cutoffs of 15 and 25 gallons per ton (GPT), respectively. This represents most of the high-grade oil shale in the United States. Much of this rich oil shale is found i
Authors
Justin E. Birdwell, Tracey J. Mercier, Ronald C. Johnson, Michael E. Brownfield, John D. Dietrich
Assessment of undiscovered technically recoverable oil and gas resources of Puerto Rico and the Puerto Rico-U.S. Virgin Islands Exclusive Economic Zone, 2013
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 19 million barrels of undiscovered, technically recoverable oil and 244 billion cubic feet of undiscovered natural gas in the Puerto Rico–U.S. Virgin Islands Exclusive Economic Zone.
Authors
Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Stephanie B. Gaswirth, Janet K. Pitman, Michael E. Brownfield, Tracey J. Mercier, Craig J. Wandrey, Jean N. Weaver
Epidote from the Zard Mountains, Kharan, Balochistan, Pakistan
The authors received two unusual crystals of epidote from Rock Currier, Jewel Tunnel Imports, in 2012. The mineral specimens were collected at Zard Mountain (Zard Koh), in the central part of the Ruskoh Mountains (Rusk Koh), west of Kharan, Balochistan, Pakistan (written communication, Rock Currier, 2013). The epidote locality was most likely discovered in 2010. These epidote crystals were unusual
Authors
Michael E. Brownfield, Heather Lowers, William K. Betterton
Nahcolite and halite deposition through time during the saline mineral phase of Eocene Lake Uinta, Piceance Basin, western Colorado
Halite and the sodium bicarbonate mineral nahcolite were deposited during the saline phase of Eocene Lake Uinta in the Piceance Basin, western Colorado. Variations in the area of saline mineral deposition through time were interpreted from studies of core and outcrop. Saline minerals were extensively leached by groundwater, so the original extent of saline deposition was estimated from the distrib
Authors
Ronald C. Johnson, Michael E. Brownfield
Assessment of undiscovered conventional oil and gas resources of North Africa, 2012
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 19 billion barrels of technically recoverable undiscovered conventional oil and 370 trillion cubic feet of undiscovered conventional natural gas resources in 8 geologic provinces of North Africa.
Authors
Christopher J. Schenk, Timothy R. Klett, Katherine J. Whidden, Mark A. Kirschbaum, Ronald R. Charpentier, Troy A. Cook, Michael E. Brownfield, Janet K. Pitman
Science and Products
Filter Total Items: 169
Assessment of unconventional oil and gas resources in Northeast Mexico, 2014
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 0.78 billion barrels of unconventional oil, 23.5 trillion cubic feet of unconventional gas, and 0.88 billion barrels of natural gas liquids in the Sabinas Basin, Burgos Basin, and Tampico-Misantla Basin provinces of northeast Mexico.
Authors
Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Marilyn E. Tennyson, Stephanie B. Gaswirth, Michael E. Brownfield, Mark J. Pawlewicz, Jean Noe Weaver
Assessment of undiscovered, technically recoverable oil and gas resources of Armenia, 2014
Using a geology-based assessment methodology, the U.S. Geological Survey estimated mean volumes of 1 million barrels of undiscovered, technically recoverable conventional oil and 6 billion cubic feet of undiscovered, technically recoverable conventional natural gas in Armenia.
Authors
Timothy R. Klett, Christopher J. Schenk, Craig J. Wandrey, Michael E. Brownfield, Ronald R. Charpentier, Marilyn E. Tennyson, Donald L. Gautier
Histograms showing variations in oil yield, water yield, and specific gravity of oil from Fischer assay analyses of oil-shale drill cores and cuttings from the Piceance Basin, northwestern Colorado
Recent studies indicate that the Piceance Basin in northwestern Colorado contains over 1.5 trillion barrels of oil in place, making the basin the largest known oil-shale deposit in the world. Previously published histograms display oil-yield variations with depth and widely correlate rich and lean oil-shale beds and zones throughout the basin. Histograms in this report display oil-yield data plott
Authors
John D. Dietrich, Michael E. Brownfield, Ronald C. Johnson, Tracey J. Mercier
Spatial and stratigraphic distribution of water in oil shale of the Green River Formation using Fischer assay, Piceance Basin, northwestern Colorado
The spatial and stratigraphic distribution of water in oil shale of the Eocene Green River Formation in the Piceance Basin of northwestern Colorado was studied in detail using some 321,000 Fischer assay analyses in the U.S. Geological Survey oil-shale database. The oil-shale section was subdivided into 17 roughly time-stratigraphic intervals, and the distribution of water in each interval was asse
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield
Assessment of potential unconventional lacustrine shale-oil and shale-gas resources, Phitsanulok Basin, Thailand, 2014
Using a geology-based assessment methodology, the U.S. Geological Survey assessed potential technically recoverable mean resources of 53 million barrels of shale oil and 320 billion cubic feet of shale gas in the Phitsanulok Basin, onshore Thailand.
Authors
Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Tracey J. Mercier, Marilyn E. Tennyson, Janet K. Pitman, Michael E. Brownfield
Spatial and stratigraphic distribution of water in oil shale of the Green River Formation using Fischer Assay, Piceance Basin, northwestern Colorado
The spatial and stratigraphic distribution of water in oil shale of the Eocene Green River Formation in the Piceance Basin of northwestern Colorado was studied in detail using some 321,000 Fischer assay analyses in the U.S. Geological Survey oil-shale database. The oil-shale section was subdivided into 17 roughly time-stratigraphic intervals, and the distribution of water in each interval was asse
Authors
Ronald C. Johnson, Tracey J. Mercier, Michael E. Brownfield
Assessment of potential shale oil and tight sandstone gas resources of the Assam, Bombay, Cauvery, and Krishna-Godavari Provinces, India, 2013
Using a well performance-based geologic assessment methodology, the U.S. Geological Survey estimated a technically recoverable mean volume of 62 million barrels of oil in shale oil reservoirs, and more than 3,700 billion cubic feet of gas in tight sandstone gas reservoirs in the Bombay and Krishna-Godavari Provinces of India. The term “provinces” refer to geologically defined units assessed by the
Authors
Timothy R. Klett, Christopher J. Schenk, Craig J. Wandrey, Michael E. Brownfield, Ronald R. Charpentier, Marilyn E. Tennyson, Donald L. Gautier
In-place oil shale resources in the saline-mineral and saline-leached intervals, Parachute Creek Member of the Green River Formation, Piceance Basin, Colorado
A recent U.S. Geological Survey analysis of the Green River Formation of the Piceance Basin in western Colorado shows that about 920 and 352 billion barrels of oil are potentially recoverable from oil shale resources using oil-yield cutoffs of 15 and 25 gallons per ton (GPT), respectively. This represents most of the high-grade oil shale in the United States. Much of this rich oil shale is found i
Authors
Justin E. Birdwell, Tracey J. Mercier, Ronald C. Johnson, Michael E. Brownfield, John D. Dietrich
Assessment of undiscovered technically recoverable oil and gas resources of Puerto Rico and the Puerto Rico-U.S. Virgin Islands Exclusive Economic Zone, 2013
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 19 million barrels of undiscovered, technically recoverable oil and 244 billion cubic feet of undiscovered natural gas in the Puerto Rico–U.S. Virgin Islands Exclusive Economic Zone.
Authors
Christopher J. Schenk, Ronald R. Charpentier, Timothy R. Klett, Stephanie B. Gaswirth, Janet K. Pitman, Michael E. Brownfield, Tracey J. Mercier, Craig J. Wandrey, Jean N. Weaver
Epidote from the Zard Mountains, Kharan, Balochistan, Pakistan
The authors received two unusual crystals of epidote from Rock Currier, Jewel Tunnel Imports, in 2012. The mineral specimens were collected at Zard Mountain (Zard Koh), in the central part of the Ruskoh Mountains (Rusk Koh), west of Kharan, Balochistan, Pakistan (written communication, Rock Currier, 2013). The epidote locality was most likely discovered in 2010. These epidote crystals were unusual
Authors
Michael E. Brownfield, Heather Lowers, William K. Betterton
Nahcolite and halite deposition through time during the saline mineral phase of Eocene Lake Uinta, Piceance Basin, western Colorado
Halite and the sodium bicarbonate mineral nahcolite were deposited during the saline phase of Eocene Lake Uinta in the Piceance Basin, western Colorado. Variations in the area of saline mineral deposition through time were interpreted from studies of core and outcrop. Saline minerals were extensively leached by groundwater, so the original extent of saline deposition was estimated from the distrib
Authors
Ronald C. Johnson, Michael E. Brownfield
Assessment of undiscovered conventional oil and gas resources of North Africa, 2012
Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 19 billion barrels of technically recoverable undiscovered conventional oil and 370 trillion cubic feet of undiscovered conventional natural gas resources in 8 geologic provinces of North Africa.
Authors
Christopher J. Schenk, Timothy R. Klett, Katherine J. Whidden, Mark A. Kirschbaum, Ronald R. Charpentier, Troy A. Cook, Michael E. Brownfield, Janet K. Pitman