Principal Types of Oil and Gas Occurrences in Western Canada
E. W. Shaw, G. C. Wells, 1954. "Principal Types of Oil and Gas Occurrences in Western Canada", Western Canada Sedimentary Basin: A Symposium; Sponsored by the Alberta Society of Petroleum Geologists, and the Saskatchewan Society of Petroleum Geologists, Leslie M. Clark
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Oil and gas fields of Western Canada are classified into six types: the foothills type, the bioherm reef type, the biostrome reef type, the stratigraphic and structural sand type, the stratigraphic sand type, and the unconformity trap type. The main purpose of the classification is to facilitate a brief, simple description of the habitat of oil and gas occurrences in Western Canada. Examples of each type are listed and illustrated.