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- W1989039008 abstract "PreviousNext No AccessSEG Technical Program Expanded Abstracts 2005Time‐lapse crosswell seismic tomography and well logging to monitor the injected CO 2 in an onshore aquifer, Nagaoka, JapanAuthors: Ziqiu XueDaiji TanaseHideki SaitoDai NobuokaJiro WatanabeZiqiu XueResearch Institute of Innovative Technology for the Earth (RITE)Search for more papers by this author, Daiji TanaseEngineering Advancement Association of Japan (ENAA)Search for more papers by this author, Hideki SaitoOYO CorporationSearch for more papers by this author, Dai NobuokaOYO CorporationSearch for more papers by this author, and Jiro WatanabeGeophysical Surveying CorporationSearch for more papers by this authorhttps://doi.org/10.1190/1.2147958 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract In comparison to the offshore location of the SACS (Saline Aquifer CO2 Storage) project, the Japanese Nagaoka project undertaken by RITE and ENAA looks at the geophysical monitoring of CO2 injection in an onshore saline aquifer. The CO2 was injected into a thin permeable zone of the reservoir at 20–40 tonnes per day. The CO2 injection started on July 2003 and ended on January 2005. The total amount of injected CO2 is about 10,400 tonnes. The pilot‐scale demonstration allowed an improved understanding of the CO2 movement in a porous sandstone reservoir. The results of time‐lapse crosswell seismic tomography indicate an area of P‐wave velocity decrease possibly due to CO2 saturation, and the CO2‐bearing zone near the injection well expanded clearly along the formation up dip direction during CO2 injection. The presence of CO2 was also identified by induction, sonic and neutron logging at the observation wells. The time‐lapse crosswell survey can provide valuable insight into the CO2 movement within porous sandstone reservoirs. There is no any CO2 leakage from the reservoir, even a huge earthquake (M6.8) hit the Mid‐Niigata area on October 23, 2004. Distance between the earthquake epicenter and the CO2 injection site is about 20 kms.Permalink: https://doi.org/10.1190/1.2147958FiguresReferencesRelatedDetailsCited ByCrosswell monitoring using virtual sources and horizontal wellsJoongmoo Byun, Jeongmin Yu, and Soon Jee Seol26 May 2010 | GEOPHYSICS, Vol. 75, No. 3C O2 velocity measurement and models for temperatures up to 200°C and pressures up to 100 MPaGEOPHYSICS, Vol. 75, No. 3Effective monitoring for CO2 sequestration with virtual sourcesJeongmin Yu, Joongmoo Byun, Soon Jee Seol, and Kwon Gyu Park14 October 2009Continuous active-source seismic monitoring of C O2 injection in a brine aquiferGEOPHYSICS, Vol. 72, No. 5 SEG Technical Program Expanded Abstracts 2005ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2005 Pages: 2668 publication data© 2005 Copyright © 2005 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 07 Dec 2005 CITATION INFORMATION Ziqiu Xue, Daiji Tanase, Hideki Saito, Dai Nobuoka, and Jiro Watanabe, (2005), Time‐lapse crosswell seismic tomography and well logging to monitor the injected CO 2 in an onshore aquifer, Nagaoka, Japan, SEG Technical Program Expanded Abstracts : 1433-1436. https://doi.org/10.1190/1.2147958 Plain-Language Summary PDF DownloadLoading ..." @default.
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- W1989039008 title "Time‐lapse crosswell seismic tomography and well logging to monitor the injected CO 2 in an onshore aquifer, Nagaoka, Japan" @default.
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