Microseismic event analysis for the in Salah (Algeria) carbon capture and storage project

A. L. Stork*, J. P. Verdon, J. M. Kendall

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

The In Salah Joint Venture carbon capture and storage project at Krechba, Algeria began injecting CO2 in 2004. This study makes use of microseismic event data recorded by a single geophone. Information from shear waves enables fracture directions and densities to be inferred and we find fractures striking N145°E, in agreement with the regional direction of maximum horizontal stress. There is no evidence for any temporal change in shear-wave splitting parameters in the time frame studied. This implies that CO2 injection is reactivating pre-existing fractures. We are able to obtain only very approximate event locations which suggest that events occur at or below the reservoir level, with no change over time.

Original languageEnglish
Title of host publication75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers
PublisherEuropean Association of Geoscientists and Engineers, EAGE
Pages3264-3268
Number of pages5
ISBN (Print)9781629937915
Publication statusPublished - 2013
Event75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers - London, United Kingdom
Duration: 10 Jun 201313 Jun 2013

Conference

Conference75th European Association of Geoscientists and Engineers Conference and Exhibition 2013 Incorporating SPE EUROPEC 2013: Changing Frontiers
CountryUnited Kingdom
CityLondon
Period10/06/1313/06/13

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