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Permanent Downhole Seismic Monitoring For Co2 Geosequestration: Stage 3 of the Co2crc Otway Project

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Authors
Pevzner, Roman
Glubokovskikh, Stanislav
Tertyshnikov, Konstantin
Yavuz, Sinem
Egorov, A.
Sidenko, E.
Popik, Sofya
Ricard, L.
Correa, J.
Wood, T.
others
Date
2019
Type
Conference Paper

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Pevzner, R. and Glubokovskikh, S. and Tertyshnikov, K. and Yavuz, S. and Egorov, A. and Sidenko, E. and Popik, S. et al. 2019. Permanent Downhole Seismic Monitoring for Co2 Geosequestration: Stage 3 of the Co2crc Otway Project, in Proceedings of the APGCE 2019 Conference, Oct 29 2019, Volume 2019, pp. 1-5. Kuala Lumpur, Malaysia: European Association of Geoscientists & Engineers.
Source Title
Asia Petroleum Geoscience Conference and Exhibition 2019
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WASM: Minerals, Energy and Chemical Engineering
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Abstract

Time lapse (TL) seismic plays a key role in monitoring of changes in the subsurface caused by reservoir production or C02 geosequestration However, applicability of the TL seismic is limited by several factors, which include: relatively high cost; relatively high degree of invasiveness and associated land access issues; sparseness in time and usually significant delay between the acquisition and availability of the interprétable data. Stage 3 of the CO2CRC Otway project is aiming to address these issues through deployment of a permanent seismic monitoring system built on a combination of permanent orbital vibrators and multiple closely spaced wells instrumented with fibre optic cables for distributed acoustic sensing. Here we discuss the seismic monitoring program for Stage 3 and illustrate it with the results of a number of trials conducted on site while developing the program.