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Posttreatment pressure transient test analysis for Maxus Exploration Company and the Gas Research Institute. Ellis Ranch Field Ochiltree County, Texas. H. T. Glasgow No. 2/Cleveland Sand. Topical report, March 1993

Technical Report ·
OSTI ID:6295518
Analysis of the posttreatment pressure transient test performed on a stimulated well as part of an ongoing cooperative project is discussed. The predicted dimensions were corroborated by history matching approximately one year's production response and the subsequent 20-day pressure buildup test. The interpretation of the production response and pressure buildup test indicates that the effective fracture length is on the order of 360 feet or longer. Sufficient pressure buildup data was available to distinguish between fracture lengths of 200 feet and 350 feet but not to determine uniqueness of the fracture length beyond 350 feet. The pressure transient test does suggest that the fracture length is not on the order of 200 feet, which was a primary goal associated with acquiring the data. The 200 feet prediction was based upon an alternative interpretation suggesting incomplete cleanup at the far end of the fracture. The conjecture was not supported either by the fracture treatment pressures, the production history matching, or by the pressure buildup data.
Research Organization:
Resources Engineering Systems, Inc., Cambridge, MA (United States)
OSTI ID:
6295518
Report Number(s):
PB-93-189165/XAB; CNN: GRI-5091-221-2134
Country of Publication:
United States
Language:
English