Active CO 2 reservoir management for CO 2 capture, utilization, and storage

An approach to improve CO 2 capacity and to reduce risk

T. A. Buscheck, Y. Sun, M. Chen, Y. Hao, T. J. Wolery, S. J. Friedmann, R. D. Aines

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

CO 2 capture, utilization, and storage (CCUS) in deep geological formations is regarded as a promising means of lowering the amount of CO 2 emitted to the atmosphere and thereby mitigating global climate change. For commercial-scale CO 2 injection in saline formations, pressure buildup can limit CO 2 storage capacity and security. Issues of interest include the potential for CO 2 leakage to the atmosphere, brine migration to overlying potable aquifers, and pore-space competition with neighboring subsurface activities. Active CO 2 reservoir management (ACRM) combines brine production with CO 2 injection to relieve pressure buildup, increase injectivity, spatially and temporally constrain brine migration, and enable beneficial utilization of produced brine. ACRM provides benefits to reservoir management at the cost of extracting brine. The added cost must be offset by the added benefits to the storage operation and/or by creating new, valuable uses that reduce the total added cost. We review potential uses of produced brine and conduct a numerical study of potential reservoir benefits. Using the NUFT code, we investigate CO 2-injector / brine-producer strategies to improve CO 2 storage capacity and minimize interference with neighboring subsurface activities. Performance measures considered in this study include magnitude of vertical brine migration and areal extent and duration of pressure buildup. The results of our study demonstrate the potential benefits of brine production to CO 2 storage operations.

Original languageEnglish
JournalCarbon Management Technology Conference [CMTC] (Orlando, FL, 2/7-9/2012) Proceedings
Publication statusPublished - 2012

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Reservoir management
Aquifers
Climate change
Costs

ASJC Scopus subject areas

  • Energy(all)

Cite this

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title = "Active CO 2 reservoir management for CO 2 capture, utilization, and storage: An approach to improve CO 2 capacity and to reduce risk",
abstract = "CO 2 capture, utilization, and storage (CCUS) in deep geological formations is regarded as a promising means of lowering the amount of CO 2 emitted to the atmosphere and thereby mitigating global climate change. For commercial-scale CO 2 injection in saline formations, pressure buildup can limit CO 2 storage capacity and security. Issues of interest include the potential for CO 2 leakage to the atmosphere, brine migration to overlying potable aquifers, and pore-space competition with neighboring subsurface activities. Active CO 2 reservoir management (ACRM) combines brine production with CO 2 injection to relieve pressure buildup, increase injectivity, spatially and temporally constrain brine migration, and enable beneficial utilization of produced brine. ACRM provides benefits to reservoir management at the cost of extracting brine. The added cost must be offset by the added benefits to the storage operation and/or by creating new, valuable uses that reduce the total added cost. We review potential uses of produced brine and conduct a numerical study of potential reservoir benefits. Using the NUFT code, we investigate CO 2-injector / brine-producer strategies to improve CO 2 storage capacity and minimize interference with neighboring subsurface activities. Performance measures considered in this study include magnitude of vertical brine migration and areal extent and duration of pressure buildup. The results of our study demonstrate the potential benefits of brine production to CO 2 storage operations.",
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T2 - An approach to improve CO 2 capacity and to reduce risk

AU - Buscheck, T. A.

AU - Sun, Y.

AU - Chen, M.

AU - Hao, Y.

AU - Wolery, T. J.

AU - Friedmann, S. J.

AU - Aines, R. D.

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