TY - GEN
T1 - Time-lapse seismic registration and inversion for CO2 sequestration study at Cranfield Part II
T2 - Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting: Expanding Geophysical Frontiers, SEG 2013
AU - Zhang, Rui
AU - Song, Xiaolei
AU - Fomel, Sergey
AU - Sen, Mrinal K.
AU - Srinivasan, Sanjay
N1 - Funding Information:
This material is based upon work supported as part of the Center for Frontiers of Subsurface Energy Security, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001114. We thank the National Energy Technology Laboratory (NETL), the Southeast Regional Carbon Sequestration Partnership (SECARB) and Denbury Resources for providing support and data from Cranfield, and thanks to Dr. Susan D. Hovorka (BEG, GCCC).
Publisher Copyright:
© 2013 SEG.
PY - 2008
Y1 - 2008
N2 - Time-lapse seismic surveys have been implemented for monitoring CO2 sequestration at Cranfield. Some of the observed misalignments between the time-lapse datasets could have resulted from seismic acquisition or processing errors. To address this, we applied a registration method to correct misalignment between time-lapse post-stack seismic datasets. Such misalignments also exist in time-lapse pre-stack datasets, leading to the application of the same registration method on the time-lapse pre-stack datasets. The application of registration on the pre-stack datasets demonstrates its effectiveness on successfully separating time shift from time-lapse pre-stack AVA datasets. The improved consistency in the data allows us to invert time-lapse pre-stack datasets to capture time-lapse elastic property changes, which can be reliably used for monitoring of CO2 plume.
AB - Time-lapse seismic surveys have been implemented for monitoring CO2 sequestration at Cranfield. Some of the observed misalignments between the time-lapse datasets could have resulted from seismic acquisition or processing errors. To address this, we applied a registration method to correct misalignment between time-lapse post-stack seismic datasets. Such misalignments also exist in time-lapse pre-stack datasets, leading to the application of the same registration method on the time-lapse pre-stack datasets. The application of registration on the pre-stack datasets demonstrates its effectiveness on successfully separating time shift from time-lapse pre-stack AVA datasets. The improved consistency in the data allows us to invert time-lapse pre-stack datasets to capture time-lapse elastic property changes, which can be reliably used for monitoring of CO2 plume.
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U2 - 10.1190/segam2013-0309.1
DO - 10.1190/segam2013-0309.1
M3 - Conference contribution
AN - SCOPUS:85058084321
SN - 9781629931883
T3 - Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013: Expanding Geophysical Frontiers
SP - 5015
EP - 5020
BT - Society of Exploration Geophysicists International Exposition and 83rd Annual Meeting, SEG 2013
PB - Society of Exploration Geophysicists
Y2 - 22 September 2013 through 27 September 2013
ER -