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Book Chapter

Impact of Reservoir Heterogeneity and Geohistory on the Variability of Bitumen Properties and on the Distribution of Gas-and Water-saturated Zones in the Athabasca Oil Sands, Canada

By
Milovan Fustic
Milovan Fustic
Statoil Canada Ltd., 3600, 308 4th Ave. SW, Calgary, Alberta, T2P 0H7, Canada (e-mail: mfus@statoil.com)Previous address: Petroleum Reservoir Group, University of Calgary, 2500 University Dr. NW, Calgary, Alberta, T2N 1N4, Canada.
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Barry Bennett
Barry Bennett
Petroleum Reservoir Group, University of Calgary, 2500 University Dr. NW, Calgary, Alberta, T2N1N4, Canada (e-mails: bennettb@gushor.com; shubbard@ucalgary.ca; huah@ucalgary.ca; toldenburg@ucalgary.ca; slarter@ucalgary.ca)
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Stephen M. Hubbard
Stephen M. Hubbard
Petroleum Reservoir Group, University of Calgary, 2500 University Dr. NW, Calgary, Alberta, T2N1N4, Canada (e-mails: bennettb@gushor.com; shubbard@ucalgary.ca; huah@ucalgary.ca; toldenburg@ucalgary.ca; slarter@ucalgary.ca)
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Haiping Huang
Haiping Huang
Petroleum Reservoir Group, University of Calgary, 2500 University Dr. NW, Calgary, Alberta, T2N1N4, Canada (e-mails: bennettb@gushor.com; shubbard@ucalgary.ca; huah@ucalgary.ca; toldenburg@ucalgary.ca; slarter@ucalgary.ca)
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Thomas Oldenburg
Thomas Oldenburg
Petroleum Reservoir Group, University of Calgary, 2500 University Dr. NW, Calgary, Alberta, T2N1N4, Canada (e-mails: bennettb@gushor.com; shubbard@ucalgary.ca; huah@ucalgary.ca; toldenburg@ucalgary.ca; slarter@ucalgary.ca)
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Steve Larter
Steve Larter
Petroleum Reservoir Group, University of Calgary, 2500 University Dr. NW, Calgary, Alberta, T2N1N4, Canada (e-mails: bennettb@gushor.com; shubbard@ucalgary.ca; huah@ucalgary.ca; toldenburg@ucalgary.ca; slarter@ucalgary.ca)
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Published:
January 01, 2013

Abstract

The Athabasca oil sand deposit, the world’s largest petroleum accumulation, contains an estimated 1.7 trillion bbl of heavily to severely biodegraded oil,with API gravities ranging from 6 to 10°. Although reservoir characterization has been the subject of many studies in the region, very little attention has been given to petroleum (bitumen) characterization and particularly to its reservoir-scale relationship with the host sediments. In this study, variation in the bitumen physical and chemical properties were measured on a suite of samples. These were obtained from numerous cores from various reservoir types and geographic areas of the Athabasca oil sand deposits. The variation in bitumen viscosities and changes in the hydrocarbon composition caused by varying levels of biodegradation were interpreted using molecular markers. These data were integrated into the reservoir facies framework and interpreted in the context of various reservoir configurations.

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Contents

AAPG Studies in Geology

Heavy-oil and Oil-sand Petroleum Systems in Alberta and Beyond

Frances J. Hein
Frances J. Hein
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Dale Leckie
Dale Leckie
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Steve Larter
Steve Larter
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John R. Suter
John R. Suter
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American Association of Petroleum Geologists
Volume
64
ISBN electronic:
9781629812649
Publication date:
January 01, 2013

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