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Linking Geomechanics and Seismics – Stress Effects on Time-Lapse Multicomponent Seismic DataNormal access

Authors: J. Herwanger and S. Horne
Event name: 67th EAGE Conference & Exhibition
Session: Time Lapse Seismic 1
Publication date: 13 June 2005
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 1.38Mb )
Price: € 20

C011 Linking geomechanics and seismics: Stress effects on time-lapse multicomponent seismic data Abstract 1 Time-lapse stress effects on seismic data can have a similar magnitude as time-lapse effects caused by changes in saturation and pore pressure. Production-induced stress changes occur not only in the reservoir interval itself but are also manifested in the overburden. Furthermore because stress fields caused by reservoir production are directionally dependent the resulting changes in the elastic properties yield an anisotropic seismic response. To study effects in seismic data we have developed a workflow that allows the prediction/estimation of changes in (anisotropic) seismic observations from stress

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