James F. O"Briant, Consultant
This paper is a review of the operation and performance of the Goldsmith-Cummins (San Andres) Unit, The Unit is located in northwest Ector County, Texas. It produces from the San Andres dolomite at approximately 4200 ft. The general Goldsmith Field structure is an anticline with two large domes connected by a productive saddle. Gas caps are present in portions of the field. First field production began in 1934." The Unit is operated by Atlantic Richfield Company. It is composed of 191 wells; most wells were drilled and completed prior to 1940. The general completion procedure was to drill to 3900-4100 ft, set casing, deepen to total depth and treat acid and/or short with nitroglycerin. A few of the wells were fracture treated during the 1950's and 1960's to increase production rates.