Robert D. Sydansk Marathon Oil Co. Littleton, Colo. Phillip E. Moore Marathon Oil Co. Cody, Wyo. Chromic-carboxylate acrylamide-polymer gels have been applied successfully as conformance treatments in a number of fields in Wyoming's Big Horn basin. As a result of these treatments, significant amounts of incremental oil will be recovered in a profitable manner. The gels were applied to naturally fractured reservoirs of intermediate fracture intensity. The gel treatments improved sweep efficiency of oil-recovery drive fluids in fields that were under either primary production, waterflooding, or polymer-augmen...

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