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The AAPG/Datapages Combined Publications Database

CSPG Bulletin

Abstract


Bulletin of Canadian Petroleum Geology
Vol. 39 (1991), No. 2. (June), Pages 227-227

"Assessment of Potential Groundwater Contamination by Migration of EOR Production Fluids [Abstract]"

Thomson, D.G.1, Trudell, M.R.1, Stein, R.1, Andriashek, L.D.1

ABSTRACT

Enhanced oil recovery processes are potential sources of groundwater contamination. In areas such as Lloydminster and Cold Lake, Alberta, where heavy oil is produced from shallow deposits, production fluids may migrate and contaminate surficial aquifers containing potable water. The possible routes of contaminant migration include poorly or improperly abandoned wells, poorly completed wells, corroded operating wells, and natural or induced fractures in the geological material overlying the production zone.

A study site was identified at which shallow aquifers had been contaminated as a result of enhanced oil recovery activities. A modelling study was conducted to examine the potential routes by which contamination could have occurred, as well as the time frame required for production fluids to migrate to the affected aquifers. The results of the study are presented.

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ACKNOWLEDGMENTS AND ASSOCIATED FOOTNOTES

1 Alberta Research Council, Edmonton, Alberta T6H 5X2

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