Simultaneous active / passive seismic monitoring of steam assisted heavy oil production

Forgues, Éric; Schisselé-Rebel, Estelle; Cotton, Julien

doi:10.1190/1.3628059

SEG Technical Program Expanded Abstracts 2011 2011

DOI: 10.1190/1.3628059

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Simultaneous active / passive seismic monitoring of steam assisted heavy oil production

Éric Forgues

Estelle Schisselé-Rebel

Julien Cotton

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2014

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“…In the search for improved data quality and increased flexibility, permanent SAGD monitoring pilots have been installed at different locations over the last few years. An experiment involving permanently buried piezoelectric sources and geophones has been described by Forgues, Schisselé and Cotton (2011), while Byerley et al (2009) have explained a method involving dynamite sources and permanent receivers.…”

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confidence: 99%

Reservoir monitoring of steam‐assisted gravity drainage using borehole measurements

Tøndel

Schütt

Dümmong

et al. 2014

Geophysical Prospecting

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This paper presents the results from a research project focusing on permanent cross‐well geophysical methods for reservoir monitoring during steam‐assisted gravity drainage. A feasibility study indicated detectable differences in seismic and electrical reservoir properties based on expected changes in temperature and fluid saturation during the production of extra heavy oil. As a result of this, a permanent cross‐well system was installed at the Leismer Demonstration Area, located in the Athabasca Oil Sands region in Alberta, Canada. Baseline data sets, including cross‐well seismic, three‐dimensional vertical seismic profiling and cross‐well electrical resistivity tomography, have been acquired. Comparisons between conventional surface seismic and downhole seismic data show an increase in resolution and frequency content as expected. Steam‐assisted gravity drainage‐induced time‐lapse effects are clearly visible in the 3D vertical seismic profiling and electrical resistivity tomography data sets, even after a few months of oil production. In general, the 3D vertical seismic profiling images show a higher resolution than the surface seismic data, in particular when dealing with vertical positioning of the time‐lapse events. The electrical resistivity tomography baseline shows clear separation between zones of high and low electrical resistivity, and during 23 months of electrical resistivity tomography measurements the maximum reduction of resistivity is 85%. Time‐lapse observations from acoustic and electrical borehole data correspond well, and are also supported by temperature measurements in the two observation wells. Emerging technologies, updated models, improved flexibility, and reduced costs will allow future reservoir monitoring with surface and borehole data in combination, or even with borehole data exclusively.

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mentioning

confidence: 99%

Reservoir monitoring of steam‐assisted gravity drainage using borehole measurements

Tøndel

Schütt

Dümmong

et al. 2014

Geophysical Prospecting

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Simultaneous active / passive seismic monitoring of steam assisted heavy oil production

Cited by 1 publication

References 2 publications

Reservoir monitoring of steam‐assisted gravity drainage using borehole measurements

Reservoir monitoring of steam‐assisted gravity drainage using borehole measurements

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