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Shale gas and non-aqueous fracturing fluids [electronic resource] : Opportunities and challenges for supercritical CO₂.

Published
Washington, D.C. : United States. Dept. of Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description
pages 500-509 : digital, PDF file
Additional Creators
Los Alamos National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Hydraulic fracturing of shale formations in the United States has led to a domestic energy boom. Currently, water is the only fracturing fluid regularly used in commercial shale oil and gas production. Industry and researchers are interested in non-aqueous working fluids due to their potential to increase production, reduce water requirements, and to minimize environmental impacts. Using a combination of new experimental and modeling data at multiple scales, we analyze the benefits and drawbacks of using CO₂ as a working fluid for shale gas production. We theorize and outline potential advantages of CO₂ including enhanced fracturing and fracture propagation, reduction of flow-blocking mechanisms, increased desorption of methane adsorbed in organic-rich parts of the shale, and a reduction or elimination of the deep re-injection of flow-back water that has been linked to induced seismicity and other environmental concerns. We also examine likely disadvantages including costs and safety issues associated with handling large volumes of supercritical CO₂. The advantages could have a significant impact over time leading to substantially increased gas production. In addition, if CO₂ proves to be an effective fracturing fluid, then shale gas formations could become a major utilization option for carbon sequestration.
Report Numbers
E 1.99:la-ur--14-29299
la-ur--14-29299
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Note
Published through SciTech Connect.
06/01/2015.
"la-ur--14-29299"
": S0306261915003074"
Applied Energy 147 C ISSN 0306-2619 AM
Middleton, Richard; Carey, James; Currier, Robert; Hyman, Jeffrey; Kang, Qinjun; Karra, Satish; Jiménez-Martínez, Joaquín; Porter, Mark; Viswanathan, Hari.
Funding Information
AC52-06NA25396
View MARC record | catkey: 23762453