Growth and Diagenesis of Middle Devonian Keg River Cementation Reefs, Rainbow Field, Alberta
Published:January 01, 1980
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V. Schmidt, D.A. McDonald, I.A. Mcllreath, 1980. "Growth and Diagenesis of Middle Devonian Keg River Cementation Reefs, Rainbow Field, Alberta", Carbonate Reservoir Rocks, Robert B. Halley, Robert G. Loucks
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The Rainbow Lake Field is located some 400 miles northwest of Edmonton, Alberta. The main production comes from Middle Devonian reefs which are encased in evaporites. These reefs vary in size from a quarter section to nine sections and range in height to over 800 feet. Additional production comes from overlying units which are structurally draped over the reefs.
These reefs have been interpreted to be ecologic reefs that owe their reservoir qualities to primary fabric and mesodiagenetic processes. To the contrary, we hope to show that these build-ups are “cementation reefs”, i.e. they are primarily products of pervasive cementation of mechanically deposited skeletal debris and that their reservoir characteristics are mainly the result of eodiagenetic processes.
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Carbonate Reservoir Rocks
This core workshop is the product of an effort by the SEPM Carbonate Research Group to emphasize the value of careful core interpretation to hydrocarbon exploration and production programs. Initially conceived as a small conference the format was expanded in response to strong interest from the geologic community. The end result was a workshop including 14 core displays. The notes were intended as a guide but the thorough documentation of these cores will be of interest to many others.