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Title:
STORING CARBON DIOXIDE AND PRODUCING METHANE AND GEOTHERMAL ENERGY FROM DEEP SALINE AQUIFERS
Document Type and Number:
WIPO Patent Application WO/2012/021810
Kind Code:
A3
Abstract:
A novel idea involving the coupling of CO2 geological storage with methane and/or heat production (geothermal energy) from geopressured-geothermal aquifers is described herein. The production of energy from the extracted brine offsets the cost of capture, pressurization, and injection and the subsequent injection of brine containing carbon dioxide back into the aquifer. Calculations described in the present invention indicate that this offset would reduce the cost of carbon capture and sequestration (CCS) to a point that CCS could survive in a competitive market environment without subsidies or a price on carbon.

Inventors:
BRYANT, Steven, L. (4109 Ramsey Avenue, Austin, TX, 78756, US)
POPE, Gary, A. (302 Jeffrey Drive, Cedar Park, TX, 78613, US)
Application Number:
US2011/047595
Publication Date:
February 16, 2012
Filing Date:
August 12, 2011
Export Citation:
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Assignee:
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (201 West 7th Street, Austin, TX, 78701, US)
BRYANT, Steven, L. (4109 Ramsey Avenue, Austin, TX, 78756, US)
POPE, Gary, A. (302 Jeffrey Drive, Cedar Park, TX, 78613, US)
International Classes:
B01J19/00; C07C1/00; C07C7/10; C10L3/06; E21B43/295
Other References:
OLDENBURG, C. M. ET AL.: "Process Modeling of C02 Injection into Natural Gas Reservoirs for Carbon Sequestration and Enhanced Gas Recovery.", ENERGY & FUELS, vol. 15, 2001, pages 293 - 298
BREWER, PETER G. ET AL.: "Gas Hydrate Formation in the Deep Sea: In Situ Experiments with Controlled Release of Methane, Natural Gas, and Carbon Dioxi de.", ENERGY & FUELS, vol. 12, 1998, pages 183 - 188
BACHU, STEFAN.: "Sequestration of C02 in Geological Media; Criteria and Approach for Site Selection in Response to Climate Change.", ENERGY CONVERSION & MANAGEMENT., vol. 41, 2000, pages 953 - 970, XP004185472, DOI: doi:10.1016/S0196-8904(99)00149-1
KHARAKA, YOUSIF K. ET AL.: "Potential Environment Issues of C02 Storage in Deep Saline Aquifers Geochemical Results from the Frio-I Brine Pilot Test, Texas, USA.", APPLIED GEOCHEMISTRY, vol. 24, 2009, pages 1106 - 1112, XP026115987, DOI: doi:10.1016/j.apgeochem.2009.02.010
Attorney, Agent or Firm:
SINGLETON, Chainey, P. (Chalker Flores, LLP14951 North Dallas Parkway,Suite 40, Dallas TX, 75254, US)
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