Publications
Filter Total Items: 860
Hydrocarbons in upland groundwater, Marcellus Shale Region, Northeastern Pennsylvania and Southern New York, USA
Water samples from 50 domestic wells located <1 km (proximal) and >1 km (distal) from shale-gas wells in upland areas of the Marcellus Shale region were analyzed for chemical, isotopic, and groundwater-age tracers. Uplands were targeted because natural mixing with brine and hydrocarbons from deep formations is less common in those areas compared to valleys. CH4-isotope, predrill CH4-concentration,
Authors
Peter B. McMahon, Bruce D. Lindsey, Matthew D. Conlon, Andrew G. Hunt, Kenneth Belitz, Bryant Jurgens, Brian A. Varela
By
Water Resources Mission Area, Energy Resources Program, National Water Quality Program, California Water Science Center, Central Energy Resources Science Center, Colorado Water Science Center, Geology, Geophysics, and Geochemistry Science Center, Geology, Minerals, Energy, and Geophysics Science Center, New England Water Science Center, Pennsylvania Water Science Center
Assessment of shale-oil resources of the Sirte Basin Province, Libya, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 23.7 billion barrels of shale oil and 23 trillion cubic feet of associated gas in the onshore part of the Sirte Basin Province of Libya.
Authors
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Phuong A. Le, Janet K. Pitman, Ronald M. Drake, Michael E. Brownfield, Stephanie B. Gaswirth, Thomas M. Finn
Assessment of undiscovered oil and gas resources of the Sirte and Pelagian Basin Provinces of Libya, Tunisia, Malta, and Italy, 2019
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 16.4 billion barrels of oil and 106.3 trillion cubic feet of gas in the Sirte and Pelagian Basin Provinces of Libya, Tunisia, Malta, and Italy.
Authors
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Phuong A. Le, Janet K. Pitman, Ronald M. Drake, Michael E. Brownfield, Thomas M. Finn
Assessment of undiscovered conventional oil and gas resources of the Grand Erg/Ahnet Province, Algeria, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 378 million barrels of oil and 7 trillion cubic feet of gas in the Grand Erg/Ahnet Province of Algeria.
Authors
Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Thomas M. Finn, Phuong A. Le, Janet K. Pitman, Ronald M. Drake, Michael E. Brownfield, Stephanie B. Gaswirth, Heidi M. Leathers-Miller
Assessment of continuous oil and gas resources in the Beetaloo Basin, Australia, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 429 million barrels of continuous oil and 8 trillion cubic feet of continuous gas in the Beetaloo Basin of northern Australia.
Authors
Christopher J. Schenk, Tracey J. Mercier, Cheryl A. Woodall, Thomas M. Finn, Kristen R. Marra, Michael E. Brownfield, Heidi M. Leathers-Miller, Ronald M. Drake
Assessment of tight-oil and tight-gas resources in the Junggar and Santanghu Basins of Northwestern China, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 241 million barrels of tight oil and 10.1 trillion cubic feet of tight gas in the Junggar and Santanghu Basins of northwestern China.
Authors
Christopher J. Potter, Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Thomas M. Finn, Cheryl A. Woodall, Heidi M. Leathers-Miller, Kristen R. Marra, Phuong A. Le, Ronald M. Drake, Michael E. Brownfield, Janet K. Pitman
Viable long-term gas hydrate testing site confirmed on the Alaska north slope
In December 2018, data acquired in a Stratigraphic Test Well drilled from the 7-11-12 pad in the western part of the Prudhoe Bay Unit, Alaska North Slope confirmed the occurrence of two high-quality reservoirs fully saturated with gas hydrate. The drilling was the initial phase of a planned, three-well program designed to conduct an extended duration test of the response to gas hydrate reservoirs
Authors
Ray Boswell, Scott Marsteller, Nori Okinaka, Motoi Wakatsuki, Timothy S. Collett, Robert Hunter, Tom Walsh, David Itter, Stephen Crumley
Variability of estimated ultimate recovery in shale oil and shale gas accumulations in the U.S.
Variability of mean EURs within and between unconventional reservoirs is becoming more apparent as thousands of wells are drilled and oil and gas is produced from unconventional low-permeability reservoirs. Production from many of these reservoirs shows that there is spatial heterogeneity of EURs, which is mainly related to geologic characteristics. The more refined view of spatial heterogeneity r
Authors
Christopher J. Schenk, Heidi M. Leathers-Miller
Assessment of Paleozoic Shale-Oil and Shale-Gas Resources in the Tarim Basin of China, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 1.4 billion barrels of shale oil and 26.9 trillion cubic feet of shale gas in Paleozoic formations in the Tarim Basin of China.
Authors
Christopher J. Potter, Christopher J. Schenk, Tracey J. Mercier, Marilyn E. Tennyson, Thomas M. Finn, Cheryl A. Woodall, Heidi M. Leathers-Miller, Kristen R. Marra, Phuong A. Le, Ronald M. Drake, Michael E. Brownfield, Janet K. Pitman
Assessment of Undiscovered Oil and Gas Resources of the Reggane Basin Province, Algeria, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 1.3 billion barrels of oil and 63 trillion cubic feet of gas in the Reggane Basin Province of Algeria.
Authors
Christopher J. Schenk, Michael E. Brownfield, Tracey J. Mercier, Cheryl A. Woodall, Phuong A. Le, Marilyn E. Tennyson, Thomas M. Finn, Kristen R. Marra, Stephanie B. Gaswirth, Heidi M. Leathers-Miller, Janet K. Pitman, Ronald M. Drake
Geology and assessment of undiscovered oil and gas resources of the Northwest Canada Interior Basins Province, Arctic Canada
The Northwest Canada Interior Basins Province is bounded by the Mackenzie and Richardson Mountains on the southwest and west, by the Eskimo Lakes Arch on the northwest, and by the erosional limit of Paleozoic strata on the east. It lies within the far northwest part of the Paleozoic continent of Laurentia. During early Paleozoic time, it was part of a passive margin formed when the Neoproterozoic
Authors
Marilyn E. Tennyson, Janet K. Pitman
Assessment of undiscovered continuous tight-gas resources in the Mesaverde Group and Wasatch Formation, Uinta-Piceance Province, Utah and Colorado, 2018
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 24 trillion cubic feet of gas in the Mesaverde Group and Wasatch Formation of the Uinta-Piceance Province in northeast Utah and northwest Colorado.
Authors
Ronald M. Drake, Christopher J. Schenk, Tracey J. Mercier, Phuong A. Le, Thomas M. Finn, Ronald C. Johnson, Cheryl A. Woodall, Stephanie B. Gaswirth, Kristen R. Marra, Janet K. Pitman, Heidi M. Leathers-Miller, Seth S. Haines, Marilyn E. Tennyson