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An Early Look at a Time-Lapse 3D VSP

Access Status
Open access
Authors
Campbell, A
Nutt, L.
Ali, S.
Dodds, Kevin
Urosevic, Milovan
Pevzner, Roman
Sharma, S.
Date
2011
Type
Conference Paper

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Citation
Campbell, A. J. and Nutt, L. and Ali, S. and Dodds, K. and Urosevic, M. and Pevzner, R. and Sharma, S. 2011. An Early Look at a Time-Lapse 3D VSP, in EAGE (ed), Borehole Geophysics Workshop - Emphasis on 3D VSP, Jan 16 2011, pp. 56-60. Istanbul, Turkey: EAGE
Source Title
Borehole Geophysics Workshop - Emphasis on 3D VSP Workshop Proceedings
Source Conference
Borehole Geophysics Workshop - Emphasis on 3D VSP
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Department of Exploration Geophysics
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Abstract

In 2007 Australian Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC) started a project to evaluate the available technology for monitoring the movement of CO2 in an underground reservoir. In stage one of this project CO2 and methane are being produced in a nearby well, then the CO2/CH4 is being injected back down a second well into a depleted gas sand. The movement of the CO2 up-dip needs to be remotely monitored. One of the technologies being evaluated to monitor the movement of the CO2 is 3D VSP. The CRC-1 injector well is instrumented with 10 3C downhole accelerometers. A baseline 3D VSP survey was shot around this well in late 2007 and was followed by a repeat survey in 2010. We hope to monitor the movement of CO2 around the CRC-1 well by observing changes in the time-lapse signature.