Cooperative Evaluation of San Juan Basin, Phillips Petroleum Company, OpenholeWell Recompletion Efforts. Topical Report, May 1, 1993-January 15, 1994. Western Cretaceous Coal Seam Project

摘要

Over 920 San Juan Basin Fruitland Formation openhole coal gas wells have beendrilled. Significantly greater gas deliverabilty is possible if substandard productivity can be improved. Two low productivity wells were recompleted. The first was recompleted using conventional and high pressure dynamic openhole procedures. The second was recompleted using hydraulic fracturing techniques. None of the stimulation techniques increased the reservoir deliverablity above that achieved by the original openhole completion. Hydraulic fracturing damaged the near-wall permeability and productivity of the no. 234 well. Extensive testing and production logging were performed to support the conclusions.