Publications
Filter Total Items: 956
Depositional environment and organic matter accumulation of Upper Ordovician–Lower Silurian marine shale in the Upper Yangtze Platform, South China Depositional environment and organic matter accumulation of Upper Ordovician–Lower Silurian marine shale in the Upper Yangtze Platform, South China
The main controlling factors of organic matter accumulation in the Upper Ordovician Wufeng–Lower Silurian Longmaxi Formations are complex and remain highly controversial. This study investigates the vertical variation of total organic carbon (TOC) content as well as major and trace element concentrations of four Ordovician–Silurian transition sections from the Upper Yangtze Platform of...
Authors
Yangfang Li, Tongwei Zhang, Geoffrey S. Ellis, Deyong Shao
Real-time specific surface area measurements via laser-induced breakdown spectroscopy Real-time specific surface area measurements via laser-induced breakdown spectroscopy
From healthcare to cosmetics to environmental science, the specific surface area (SSA) of micro- and mesoporous materials or products can greatly affect their chemical and physical properties. SSA results are also widely used to examine source rocks in conventional and unconventional petroleum resource plays. Despite its importance, current methods to measure SSA are often cumbersome...
Authors
Kathryn E. Washburn, Justin E. Birdwell, James C. Howard
Data cleaning methodology for monthly water-to-oil and water-to-gas production ratios in continuous resource assessments Data cleaning methodology for monthly water-to-oil and water-to-gas production ratios in continuous resource assessments
Petroleum production data are usually stored in a format that makes it easy to determine the year and month production started, if there are any breaks, and when production ends. However, in some cases, you may want to compare production runs where the start of production for all wells starts at month one regardless of the year the wells started producing. This report describes the JAVA...
Authors
Brian A. Varela, Seth S. Haines, Nicholas J. Gianoutsos
The Iġnik Sikumi Field Experiment, Alaska North Slope: Design, operations, and implications for CO2−CH4 exchange in gas hydrate reservoirs The Iġnik Sikumi Field Experiment, Alaska North Slope: Design, operations, and implications for CO2−CH4 exchange in gas hydrate reservoirs
The Iġnik Sikumi Gas Hydrate Exchange Field Experiment was conducted by ConocoPhillips in partnership with the U.S. Department of Energy, the Japan Oil, Gas and Metals National Corporation, and the U.S. Geological Survey within the Prudhoe Bay Unit on the Alaska North Slope during 2011 and 2012. The primary goals of the program were to (1) determine the feasibility of gas injection into...
Authors
Ray Boswell, David Schoderbek, Timothy S. Collett, Satoshi Ohtsuki, Mark White, Brian J. Anderson
Genetic and grade and tonnage models for sandstone-hosted roll-type uranium deposits, Texas Coastal Plain, USA Genetic and grade and tonnage models for sandstone-hosted roll-type uranium deposits, Texas Coastal Plain, USA
The coincidence of a number of geologic and climatic factors combined to create conditions favorable for the development of mineable concentrations of uranium hosted by Eocene through Pliocene sandstones in the Texas Coastal Plain. Here 254 uranium occurrences, including 169 deposits, 73 prospects, 6 showings and 4 anomalies, have been identified. About 80 million pounds of U3O8 have...
Authors
Susan M. Hall, Mark J. Mihalasky, Kathleen Tureck, Jane M. Hammarstrom, Mark Hannon
Effects of thermal maturation and thermochemical sulfate reduction on compound-specific sulfur isotopic compositions of organosulfur compounds in Phosphoria oils from the Bighorn Basin, USA Effects of thermal maturation and thermochemical sulfate reduction on compound-specific sulfur isotopic compositions of organosulfur compounds in Phosphoria oils from the Bighorn Basin, USA
Compound-specific sulfur isotope analysis was applied to a suite of 18 crude oils generated from the Permian Phosphoria Formation in the Bighorn Basin, western USA. These oils were generated at various levels of thermal maturity and some experienced thermochemical sulfate reduction (TSR). This is the first study to examine the effects of thermal maturation on stable sulfur isotopic...
Authors
Geoffrey S. Ellis, Ward Said-Ahamed, Paul G. Lillis, Lubna Shawar, Alon Amrani
Assessment of coalbed gas resources of the Central and South Sumatra Basin Provinces, Indonesia, 2016 Assessment of coalbed gas resources of the Central and South Sumatra Basin Provinces, Indonesia, 2016
Using a geology-based assessment methodology, the U.S. Geological Survey estimated a mean of 20 trillion cubic feet of undiscovered, technically recoverable coalbed gas resource in the Central and South Sumatra Basin Provinces of Indonesia.
Authors
Christopher J. Schenk, Timothy R. Klett, Marilyn E. Tennyson, Tracey J. Mercier, Michael E. Brownfield, Janet K. Pitman, Stephanie B. Gaswirth, Thomas M. Finn
Assessment of continuous oil and gas resources of the South Sumatra Basin Province, Indonesia, 2016 Assessment of continuous oil and gas resources of the South Sumatra Basin Province, Indonesia, 2016
Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 689 million barrels of continuous shale oil and 3.9 trillion cubic feet of shale gas in the South Sumatra Basin Province in Indonesia.
Authors
Christopher J. Schenk, Marilyn E. Tennyson, Timothy R. Klett, Thomas M. Finn, Tracey J. Mercier, Stephanie B. Gaswirth, Kristen R. Marra, Phuong A. Le, Sarah J. Hawkins
Evolution of the Lower Tertiary Elko Lake Basin, a potential hydrocarbon source rock in Northeast Nevada Evolution of the Lower Tertiary Elko Lake Basin, a potential hydrocarbon source rock in Northeast Nevada
No abstract available.
Authors
Ronald C. Johnson, Justin E. Birdwell
The Chuar Petroleum System, Arizona and Utah The Chuar Petroleum System, Arizona and Utah
The Neoproterozoic Chuar Group consists of marine mudstone, sandstone and dolomitic strata divided into the Galeros and Kwagunt Formations, and is exposed only in the eastern Grand Canyon, Arizona. Research by the U.S. Geological Survey (USGS) in the late 1980s identified strata within the group to be possible petroleum source rocks, and in particular the Walcott Member of the Kwagunt...
Authors
Paul G. Lillis
Petroleum system model of the Upper Devonian-Lower Mississippian Bakken Formation in the northern Williston Basin, Saskatchewan, southwestern Manitoba, and southeastern Alberta, Canada Petroleum system model of the Upper Devonian-Lower Mississippian Bakken Formation in the northern Williston Basin, Saskatchewan, southwestern Manitoba, and southeastern Alberta, Canada
No abstract available.
Authors
Debra K. Higley, Nicholas J. Gianoutsos
Overpressure development through time using 4D pressure-volume-temperature modeling in the deep Anadarko Basin, Colorado, Kansas, Oklahoma, and Texas Overpressure development through time using 4D pressure-volume-temperature modeling in the deep Anadarko Basin, Colorado, Kansas, Oklahoma, and Texas
No abstract available.
Authors
Debra K. Higley