Hydraulic fracture treatment analysis and post-fracture evaluation. Enron Oil and Gas Company Sawyer 144a No. 5 Sawyer field (Upper Canyon Sands) Sutton County, Texas. Topical final report, April 5, 1991-April 21, 1992

Technical Report · Wed Apr 01 04:00:00 EST 1992

OSTI ID:6488065

The report provides analysis and evaluation of the fracturing of the Enron Sawyer 144A Number 5 in the Upper Canyon sands. The minifrac and main fracture treating pressures have been matched using FRACPROR and the corresponding propped fracture geometry has been corroborated using RESPROTM to model the posttreatment production and bottomhole pressure responses. Results of the analysis have been confirmed by the long-term production history match. The quality of the treating pressure, and production and pressure buildup matches support the predicted geometries from FRACPROR and indicate general predictability for future treatment optimization and evolution. The treatment produced an estimated propped fracture length of 433 feet with a proppant concentration resulting in a near infinite conductivity response. The vertical proppant distribution needs improvement because the lower pay interval is found to be poorly propped and may be improved by pumping a more aggressive treatment. Economic optimization analyses indicate that significant improvements can be made to the fracture treatment design.

• Research Organization: Resources Engineering Systems, Inc., Cambridge, MA (United States)
• OSTI ID: 6488065
• Report Number(s): PB-93-175180/XAB; CNN: GRI-5091-221-2134
• Country of Publication: United States
• Language: English

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