modeling supercritical CO2 injection in brine-bearing formations
Christine Doughty, Karsten Pruess, and Sally M. Benson
Contact: Christine Doughty, 510/486-6453, CADoughty@lbl.gov
Research Objectives
Geologic sequestration of CO2 in brine-bearing formations has been proposed as a means of reducing the atmospheric load of greenhouse gases. Numerous brine-bearing formations have been identified as having potential for geologic sequestration of CO2. One promising setting is the fluvial/deltaic Frio formation in the upper Texas gulf coast, which is the site of an upcoming pilot test of CO2 sequestration. The objective of this research is to investigate the physical processes controlling the behavior and ultimate fate of CO2 in the subsurface, to help design the pilot test and to gain a broader understanding of the issues accompanying CO2 sequestration in brine-bearing formations.
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 Modeled gas saturation distribution after 20 days of injection of supercritical CO2 into a brine-saturated formation, for two different values of residual gas saturation Sgr. The injection and monitoring wells are shown as black lines.
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