Colin Doolan
Colin Doolan is a Research Geologist with the USGS Geology, Energy & Minerals (GEM) Science Center in Reston, VA.
Science and Products
National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources - data release National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources - data release
In 2020, the U.S. Geological Survey (USGS) completed a probabilistic assessment of the volume of technically recoverable oil resources available if current carbon dioxide enhanced oil recovery (CO2-EOR) technologies were applied in amenable oil reservoirs underlying the onshore and State waters area of the conterminous United States. The assessment also includes estimates of the...
Microbiology of the Utica Shale Microbiology of the Utica Shale
In order to determine the innate microbial community of shale gas reservoirs and how they are impacted by hydraulic fracturing, this study analyzed biomass collected from produced water and rock from hydraulically fractured wells in the Utica Shale. The samples include rock chips from a drill core from one Utica well, produced water from that same Utica well, and produced water from 12...
Data on Produced Water Quality and Quantities from Hydraulically Fractured Williston Basin Oil Wells Data on Produced Water Quality and Quantities from Hydraulically Fractured Williston Basin Oil Wells
This dataset contains compositional data on 17 produced water samples from hydraulically fractured unconventional oil wells completed in the Middle Bakken and Three Forks Formations. The oil wells are located in five different wellfields across the Williston Basin. Specific gravity, conductivity, temperature, pH and oxidation-reduction potential for each sample was measured in the field...
Geochemistry of Utica Shale Play and other Appalachian produced waters Geochemistry of Utica Shale Play and other Appalachian produced waters
Citation Note: These data were collected as part of a research study published in Environmental Science and Technology. Please reference the following paper when citing these data. Blondes, M.S., Shelton, J.L., Engle, M.A., Trembly, J.P., Doolan, C.A., Jubb, A.M., Chenault, J.M., Rowan, E.L., Haefner, R.J., and Mailot, B.E., 2020, Utica Shale Play Oil and Gas Brines: Geochemistry and...
Direct Trace Element Determination in Oil and Gas Produced Waters with Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES): Advantages of High Salinity Tolerance (2019) Direct Trace Element Determination in Oil and Gas Produced Waters with Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES): Advantages of High Salinity Tolerance (2019)
Waters co-produced during petroleum extraction are the largest waste stream from oil and gas development. Reuse or disposal of these waters is difficult due both to their high salinities, which can greatly exceed 35 g/L (seawater equivalent), and also the sheer volume of wastewater generated, which is estimated at nearly 900 billion gallons per year across the United States. Beyond...
USGS Gulf Coast Petroleum Systems, and National and Global Oil and Gas Assessment Projects - U.S. Gulf Coast Downdip Paleogene Formations 2017 Assessment Unit Boundaries and Input-Data Forms USGS Gulf Coast Petroleum Systems, and National and Global Oil and Gas Assessment Projects - U.S. Gulf Coast Downdip Paleogene Formations 2017 Assessment Unit Boundaries and Input-Data Forms
The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and...
Filter Total Items: 19
National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources — Results National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources — Results
In 2020, the U.S. Geological Survey (USGS) completed a probabilistic assessment of the volume of technically recoverable oil resources available if current carbon dioxide enhanced oil recovery (CO2-EOR) technologies were applied to amenable oil reservoirs underlying the onshore and State waters areas of the conterminous United States. The assessment also includes estimates of the mass of...
Authors
Peter D. Warwick, Emil D. Attanasi, Madalyn S. Blondes, Sean T. Brennan, Marc L. Buursink, Steven M. Cahan, Colin A. Doolan, Philip A. Freeman, C. Ozgen Karacan, Celeste D. Lohr, Matthew D. Merrill, Ricardo A. Olea, Jenna L. Shelton, Ernie R. Slucher, Brian A. Varela
Insights on geochemical, isotopic, and volumetric compositions of produced water from hydraulically fractured Williston Basin oil wells Insights on geochemical, isotopic, and volumetric compositions of produced water from hydraulically fractured Williston Basin oil wells
Tracing produced water origins from wells hydraulically fractured with freshwater-based fluids is sometimes predicated on assumptions that (1) each geological formation contains compositionally unique brine and (2) produced water from recently hydraulically fractured wells resembles fresher meteoric water more so than produced water from older wells. These assumptions are not valid in...
Authors
Tanya J. Gallegos, Colin A. Doolan, Rodney R. Caldwell, Mark A Engle, Matthew S. Varonka, Justin E. Birdwell, Glenn D. Jolly, Tyler B. Coplen, Thomas A. Oliver
By
Utica shale play oil and gas brines: Geochemistry and factors influencing wastewater management Utica shale play oil and gas brines: Geochemistry and factors influencing wastewater management
The Utica and Marcellus Shale Plays in the Appalachian Basin are the fourth and first largest natural gas producing plays in the United States, respectively. Hydrocarbon production generates large volumes of brine (“produced water”) that must be disposed of, treated, or reused. Though Marcellus brines have been studied extensively, there are few studies from the Utica Shale Play. This...
Authors
Madalyn S. Blondes, Jenna L. Shelton, Mark A Engle, Jason Trembly, Colin A. Doolan, Aaron M. Jubb, Jessica Chenault, Elisabeth L. Rowan, Ralph J. Haefner, Brian E. Mailot
Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas
The lower Eagle Ford Group (LEFG) is one of the most productive continuous hydrocarbon plays in the United States but few associated produced waters data and minimal interpretation have been published. This effort focuses on results from compositional and isotopic data from 39 produced water samples collected from horizontal wells producing from the LEFG in south central Texas. The depth...
Authors
Mark A Engle, Colin A. Doolan, Janet K. Pitman, Matthew S. Varonka, Jessica Chenault, William H. Orem, Peter B. McMahon, Aaron M. Jubb
Organic compounds in produced waters from the Bakken Formation and Three Forks Formation in the Williston Basin, North Dakota Organic compounds in produced waters from the Bakken Formation and Three Forks Formation in the Williston Basin, North Dakota
The organic composition of produced waters (flowback and formation waters) from the middle member of the Bakken Formation and the Three Forks Formation in the Williston Basin, North Dakota were examined to aid in the remediation of surface contamination and help develop treatment methods for produced-water recycling. Twelve produced water samples were collected from the Bakken and Three...
Authors
Matthew S. Varonka, Tanya Gallegos, Anne L. Bates, Colin A. Doolan, William H. Orem
Direct trace element determination in oil and gas produced waters with inductively coupled plasma - Optical emission spectrometry (ICP-OES): Advantages of high salinity tolerance Direct trace element determination in oil and gas produced waters with inductively coupled plasma - Optical emission spectrometry (ICP-OES): Advantages of high salinity tolerance
Waters co-produced during petroleum extraction are the largest waste stream from oil and gas development. Reuse or disposal of these waters is difficult due to their high salinities and the sheer volumes generated. Produced waters may also contain valuable mineral commodities. While an understanding of produced water trace element composition is required for evaluating the associated...
Authors
Aaron M. Jubb, Mark Engle, Jessica Chenault, Madalyn Blondes, Cloelle G. Danforth, Colin Doolan, Tanya Gallegos, Dan Mueller, Jenna Shelton
Science and Products
National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources - data release National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources - data release
In 2020, the U.S. Geological Survey (USGS) completed a probabilistic assessment of the volume of technically recoverable oil resources available if current carbon dioxide enhanced oil recovery (CO2-EOR) technologies were applied in amenable oil reservoirs underlying the onshore and State waters area of the conterminous United States. The assessment also includes estimates of the...
Microbiology of the Utica Shale Microbiology of the Utica Shale
In order to determine the innate microbial community of shale gas reservoirs and how they are impacted by hydraulic fracturing, this study analyzed biomass collected from produced water and rock from hydraulically fractured wells in the Utica Shale. The samples include rock chips from a drill core from one Utica well, produced water from that same Utica well, and produced water from 12...
Data on Produced Water Quality and Quantities from Hydraulically Fractured Williston Basin Oil Wells Data on Produced Water Quality and Quantities from Hydraulically Fractured Williston Basin Oil Wells
This dataset contains compositional data on 17 produced water samples from hydraulically fractured unconventional oil wells completed in the Middle Bakken and Three Forks Formations. The oil wells are located in five different wellfields across the Williston Basin. Specific gravity, conductivity, temperature, pH and oxidation-reduction potential for each sample was measured in the field...
Geochemistry of Utica Shale Play and other Appalachian produced waters Geochemistry of Utica Shale Play and other Appalachian produced waters
Citation Note: These data were collected as part of a research study published in Environmental Science and Technology. Please reference the following paper when citing these data. Blondes, M.S., Shelton, J.L., Engle, M.A., Trembly, J.P., Doolan, C.A., Jubb, A.M., Chenault, J.M., Rowan, E.L., Haefner, R.J., and Mailot, B.E., 2020, Utica Shale Play Oil and Gas Brines: Geochemistry and...
Direct Trace Element Determination in Oil and Gas Produced Waters with Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES): Advantages of High Salinity Tolerance (2019) Direct Trace Element Determination in Oil and Gas Produced Waters with Inductively Coupled Plasma - Optical Emission Spectrometry (ICP-OES): Advantages of High Salinity Tolerance (2019)
Waters co-produced during petroleum extraction are the largest waste stream from oil and gas development. Reuse or disposal of these waters is difficult due both to their high salinities, which can greatly exceed 35 g/L (seawater equivalent), and also the sheer volume of wastewater generated, which is estimated at nearly 900 billion gallons per year across the United States. Beyond...
USGS Gulf Coast Petroleum Systems, and National and Global Oil and Gas Assessment Projects - U.S. Gulf Coast Downdip Paleogene Formations 2017 Assessment Unit Boundaries and Input-Data Forms USGS Gulf Coast Petroleum Systems, and National and Global Oil and Gas Assessment Projects - U.S. Gulf Coast Downdip Paleogene Formations 2017 Assessment Unit Boundaries and Input-Data Forms
The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum System. The Assessment Unit is shown herein as a geographic boundary interpreted, defined, and mapped by the geologist responsible for the province and...
Filter Total Items: 19
National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources — Results National assessment of carbon dioxide enhanced oil recovery and associated carbon dioxide retention resources — Results
In 2020, the U.S. Geological Survey (USGS) completed a probabilistic assessment of the volume of technically recoverable oil resources available if current carbon dioxide enhanced oil recovery (CO2-EOR) technologies were applied to amenable oil reservoirs underlying the onshore and State waters areas of the conterminous United States. The assessment also includes estimates of the mass of...
Authors
Peter D. Warwick, Emil D. Attanasi, Madalyn S. Blondes, Sean T. Brennan, Marc L. Buursink, Steven M. Cahan, Colin A. Doolan, Philip A. Freeman, C. Ozgen Karacan, Celeste D. Lohr, Matthew D. Merrill, Ricardo A. Olea, Jenna L. Shelton, Ernie R. Slucher, Brian A. Varela
Insights on geochemical, isotopic, and volumetric compositions of produced water from hydraulically fractured Williston Basin oil wells Insights on geochemical, isotopic, and volumetric compositions of produced water from hydraulically fractured Williston Basin oil wells
Tracing produced water origins from wells hydraulically fractured with freshwater-based fluids is sometimes predicated on assumptions that (1) each geological formation contains compositionally unique brine and (2) produced water from recently hydraulically fractured wells resembles fresher meteoric water more so than produced water from older wells. These assumptions are not valid in...
Authors
Tanya J. Gallegos, Colin A. Doolan, Rodney R. Caldwell, Mark A Engle, Matthew S. Varonka, Justin E. Birdwell, Glenn D. Jolly, Tyler B. Coplen, Thomas A. Oliver
By
Utica shale play oil and gas brines: Geochemistry and factors influencing wastewater management Utica shale play oil and gas brines: Geochemistry and factors influencing wastewater management
The Utica and Marcellus Shale Plays in the Appalachian Basin are the fourth and first largest natural gas producing plays in the United States, respectively. Hydrocarbon production generates large volumes of brine (“produced water”) that must be disposed of, treated, or reused. Though Marcellus brines have been studied extensively, there are few studies from the Utica Shale Play. This...
Authors
Madalyn S. Blondes, Jenna L. Shelton, Mark A Engle, Jason Trembly, Colin A. Doolan, Aaron M. Jubb, Jessica Chenault, Elisabeth L. Rowan, Ralph J. Haefner, Brian E. Mailot
Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas Origin and geochemistry of formation waters from the lower Eagle Ford Group, Gulf Coast Basin, south central Texas
The lower Eagle Ford Group (LEFG) is one of the most productive continuous hydrocarbon plays in the United States but few associated produced waters data and minimal interpretation have been published. This effort focuses on results from compositional and isotopic data from 39 produced water samples collected from horizontal wells producing from the LEFG in south central Texas. The depth...
Authors
Mark A Engle, Colin A. Doolan, Janet K. Pitman, Matthew S. Varonka, Jessica Chenault, William H. Orem, Peter B. McMahon, Aaron M. Jubb
Organic compounds in produced waters from the Bakken Formation and Three Forks Formation in the Williston Basin, North Dakota Organic compounds in produced waters from the Bakken Formation and Three Forks Formation in the Williston Basin, North Dakota
The organic composition of produced waters (flowback and formation waters) from the middle member of the Bakken Formation and the Three Forks Formation in the Williston Basin, North Dakota were examined to aid in the remediation of surface contamination and help develop treatment methods for produced-water recycling. Twelve produced water samples were collected from the Bakken and Three...
Authors
Matthew S. Varonka, Tanya Gallegos, Anne L. Bates, Colin A. Doolan, William H. Orem
Direct trace element determination in oil and gas produced waters with inductively coupled plasma - Optical emission spectrometry (ICP-OES): Advantages of high salinity tolerance Direct trace element determination in oil and gas produced waters with inductively coupled plasma - Optical emission spectrometry (ICP-OES): Advantages of high salinity tolerance
Waters co-produced during petroleum extraction are the largest waste stream from oil and gas development. Reuse or disposal of these waters is difficult due to their high salinities and the sheer volumes generated. Produced waters may also contain valuable mineral commodities. While an understanding of produced water trace element composition is required for evaluating the associated...
Authors
Aaron M. Jubb, Mark Engle, Jessica Chenault, Madalyn Blondes, Cloelle G. Danforth, Colin Doolan, Tanya Gallegos, Dan Mueller, Jenna Shelton