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近年来,西南油气田分公司和四川石油管理局针对四川盆地地质特点和储藏特征,联合对欠平衡钻井理论、工艺及装备进行攻关,形成了适合四川盆地的现代欠平衡钻井和完井配套技术。在邛西3井开展配套试验获得成功,这是川西地区碎屑岩地层天然气勘探技术的重大突破。本文介绍了四川开展欠平衡钻井完井技术攻关的情况,阐述了现代欠平衡钻井完井技术要点及发展方向。
In recent years, Southwest Oil and Gas Field Branch and Sichuan Petroleum Administration jointly tackled the theory, technology and equipment of underbalanced drilling in view of the geological characteristics and storage characteristics of the Sichuan Basin, forming a modern underbalanced drilling and completion supporting technology suitable for the Sichuan Basin. The successful completion of the matching test in Well Xisi 3 is a major breakthrough in natural gas exploration technology in the clastic strata in western Sichuan. This article introduces the situation of underbalanced drilling and completion technology in Sichuan and expounds the key points and development direction of modern underbalanced drilling and completion technology.