Abstract
Abstract Ever since continuous steam injection (steam drive) became a viable recovery technique nearly three decades ago, attempts have been made to accurately determine areal sweep efficiencies. Until recently, the ability to determine the areal movement of steam was limited to radioactive techniques. By using common chemical tracer materials containing nitrate, bromide, iodine, or thiocyanate ions, the need for specialized radioactive materials and handling equipment is eliminated. This paper documents the efforts to use safe, inexpensive and readily detectable chemical tracer materials to determine the areal steam distribution in steam drive patterns. The work described herein was part of the work conducted under a DOE cost sharing contract in conjunction with Stanford University Petroleum Research Institute; Chemical Oil Recovery Company of Bakersfield, California; and Petro Lewis Corporation of Denver, Colorado.
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