CO2 pre-injected reservoir characterization on Cranfield with basis pursuit inversion

Abstract

Time lapse surface seismic experiments have been proposed for monitoring CO2 injection in the subsurface. To monitor the CO2 effect on surface seismic data, precise analysis of 4-D seismic is needed to capture small changes between pre- and post-injection seismic data. We introduce a new technique - Basis Pursuit Inversion (BPI) - to invert for seismic reflection coefficients that has the potential to produce clearer images of subsurface structures than the conventional inversion methods. We demonstrate the application to a pre-injection seismic data volume from Cranfield, which has been a site for carbon sequestration study since 2007. Applications of BPI on the pre-injection seismic data reveal more detailed structure and rock property information and thus has the potential for resolving CO2 plume movement during time-lapse seismic study.

Original languageEnglish (US)
Title of host publicationSociety of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011
PublisherSociety of Exploration Geophysicists
Pages2619-2623
Number of pages5
ISBN (Print)9781618391841
Publication statusPublished - Jan 1 2011
EventSociety of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011 - San Antonio, United States
Duration: Sep 18 2011Sep 23 2011

Publication series

NameSociety of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011

Other

OtherSociety of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011
CountryUnited States
CitySan Antonio
Period9/18/119/23/11

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All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Zhang, R., Sen, M. K., & Srinivasan, S. (2011). CO2 pre-injected reservoir characterization on Cranfield with basis pursuit inversion. In Society of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011 (pp. 2619-2623). (Society of Exploration Geophysicists International Exposition and 81st Annual Meeting 2011, SEG 2011). Society of Exploration Geophysicists.