Importance of Reservoir Description In Evaluating In-Situ Recovery Methods for Cold Lake Heavy Oil. Part 2 In-Situ Application


D. E. Towson,
Petro-Canada Exploration Inc.


The huge reserves of heavy oil in Alberta are found in a variety of complex reservoirs. Recovery, excluding min- ing, will require application of some form of in-siblt recovery methods, primarily in the better reservoirs. The proper selection of an in-situ method, applicable to the various reservoir types, requires a basic understanding of reservoir description and the engineering aspect of the reservoirs. In Part 1 of this paper, reservoir description in the Cold Lake heavy oil deposits was discussed under three headings: (1) rock properties; (2) fluid saturation; and (3) reservoir geometry. Based on these parameters, five selected reservoir types are discussed and compared.