Geoffrey S Ellis
Geoffrey Ellis is a petroleum geochemist with the Energy Resources Program (ERP) of the US Geological Survey. He manages the sealed tube and hydrous pyrolysis laboratories within the Central Energy Resources Science Center.
Geoffrey Ellis' research interests encompass the areas of organic-inorganic interactions in petroleum systems, gas isotope geochemistry, and the controls on sedimentary organic geochemistry in aquatic environments. He has published extensively on the process of thermochemical sulfate reduction and its impact on petroleum geochemistry. He is also actively investigating the application of compound-specific sulfur isotope analysis to problems in petroleum and organic geochemistry. He also has ongoing research projects involving clumped and position specific isotope analysis of hydrocarbons and organosulfur compounds and their relation to petroleum formation processes.
Professional Experience
2006-Present: Research Geologist, Energy Resources Program, USGS
2003-2006: Postdoctoral Fellow, Division of Chemistry & Chemical Engineering, California Institute of Technology
1996-2003: Graduate Research Assistant, Rosenstiel School of Marine and Atmospheric Science, University of Miami
1994-1996: Consulting Petroleum Geochemist, Venezuela
1991-1994: Physical Scientist, Nation Research Program, Water Resources Division, USGS
1988-1990: Geochemist, Northeast Research Institute
Education and Certifications
Ph.D., Marine Geology and Geophysics, Rosenstiel School of Marine and Atmospheric Science, University of Miami
M.S., Geochemistry, Colorado School of Mines
B.A., Geological Sciences, Cornell University
Affiliations and Memberships*
Affiliate faculty Department of Geology and Geological Engineering, Colorado School of Mines
Member American Association of Petroleum Geologists, European Association of Organic Geochemists, Geochemical Society, Geological Society of America
Member Association of Afro-Asian Petroleum Geochemists, Latin American Association of Organic Geochemistry
Member of the “Committee on Research” of the American Association of Petroleum Geologists (2009-present)
Vice-chairman of the executive council of the Association of Afro-Asian Petroleum Geochemists
Founding member of the editorial board of the journal Petroleum Research
Member of the editorial board of the English-language version of the journal Acta Petrolei Sinica
Member of the editorial board of the journal Journal of Natural Gas Geoscience
Member of the editorial board of the journal Unconventional Resources
Science and Products
Assessment of undiscovered conventional oil and gas resources of the Volga-Ural Basin and Timan-Pechora Basin Provinces of Russia, 2020
Assessment of undiscovered conventional oil and gas resources of New Guinea, Papua Barat, Seram, and Timor-Leste, 2020
Assessment of undiscovered conventional oil and gas resources of the West Siberian Basin Province, Russia, 2020
Assessment of undiscovered conventional oil and gas resources of the Montana Thrust Belt Province, 2021
Geochemical characterization of natural gases in the pre-salt section of the Santos Basin (Brazil) focused on hydrocarbons and volatile organic sulfur compounds
Assessment of undiscovered conventional oil and gas resources of the greater Taranaki Basin and East Coast Basin of New Zealand, 2020
Development of hydrocarbon gas standards for stable isotopic composition (δ13C and δ2H)
Assessment of undiscovered continuous oil resources in the Bakken and Three Forks Formations of the Williston Basin Province, North Dakota and Montana, 2021
Assessment of undiscovered conventional oil and gas resources of China, 2020
Assessment of undiscovered gas resources in the Williston Basin Province, 2020
Assessment of undiscovered conventional oil and gas resources of upper Paleozoic strata in the Williston Basin Province, 2020
Assessment of undiscovered conventional oil and gas resources in the lower Paleozoic of the Williston Basin Province, 2020
Science and Products
Assessment of undiscovered conventional oil and gas resources of the Volga-Ural Basin and Timan-Pechora Basin Provinces of Russia, 2020
Assessment of undiscovered conventional oil and gas resources of New Guinea, Papua Barat, Seram, and Timor-Leste, 2020
Assessment of undiscovered conventional oil and gas resources of the West Siberian Basin Province, Russia, 2020
Assessment of undiscovered conventional oil and gas resources of the Montana Thrust Belt Province, 2021
Geochemical characterization of natural gases in the pre-salt section of the Santos Basin (Brazil) focused on hydrocarbons and volatile organic sulfur compounds
Assessment of undiscovered conventional oil and gas resources of the greater Taranaki Basin and East Coast Basin of New Zealand, 2020
Development of hydrocarbon gas standards for stable isotopic composition (δ13C and δ2H)
Assessment of undiscovered continuous oil resources in the Bakken and Three Forks Formations of the Williston Basin Province, North Dakota and Montana, 2021
Assessment of undiscovered conventional oil and gas resources of China, 2020
Assessment of undiscovered gas resources in the Williston Basin Province, 2020
Assessment of undiscovered conventional oil and gas resources of upper Paleozoic strata in the Williston Basin Province, 2020
Assessment of undiscovered conventional oil and gas resources in the lower Paleozoic of the Williston Basin Province, 2020
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government