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SINOPEC MPD-Conclusion: Air drilling successful in Puguang field
04/16/2007
Last year, Sinopec improved drilling rates in the Puguang field using percussion (air) drilling and plans to increase its use in the 2007 drilling program.The first part of this article, published last week, described drilling in the Puguang field, drilling-failure analysis, risk assessment, and the project management road map.This concluding part discusses the optimized well design, Sinopec’s experiences with percussion drilling using compressed air and foam, MPD system design, and plans for near-balanced operations in the sour-gas reservoir.Optimized well designAccording to the original scope of the feasibility study, the initial recommendation was to apply air and air-hammer dril...
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