Pressure perturbations from geologic carbon sequestration [electronic resource] : Area-of-review boundaries and borehole leakage driving forces.
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Online Access |
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| Format: | Government Document Electronic eBook |
| Language: | English |
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Berkeley, Calif. : Oak Ridge, Tenn. :
Lawrence Berkeley National Laboratory ; distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy,
2009.
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| Abstract: | We investigate the possibility that brine could be displaced upward into potable water through wells. Because of the large volumes of CO2 to be injected, the influence of the zone of elevated pressure on potential conduits such as well boreholes could extend many kilometers from the injection site-farther than the CO2 plume itself. The traditional approach to address potential brine leakage related to fluid injection is to set an area of fixed radius around the injection well/zone and to examine wells and other potentially open pathways located in the ''Area-of-Review'' (AoR). This suggests that the AoR eeds to be defined in terms of the potential for a given pressure perturbation to drive upward fluid flow in any given system rather than on some arbitrary pressure rise. We present an analysis that focuses on the changes in density/salinity of the fluids in the potentially leaking wellbore. |
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| Item Description: | Published through the Information Bridge: DOE Scientific and Technical Information. 07/01/2009. "lbnl-3064e" GHGT9 Conference, Washington, DC, November 16?20, 2008. Journal Publication Date: 2009. Oldenburg, C.M.; Bryant, S.L.; Hovorka, S.D.; Nicot, J.-P. Earth Sciences Division. |