浅层气探井预防及处理措施

Prevention and Treatment Measures of Shallow Gas Exploration Wells

在较多区块存在浅层气区,浅层气地层埋藏较浅,在形成过程中伴随异常压力,浅层气给油田钻井带来了诸多影响,钻井过程中会引发井涌、气侵、井眼垮塌甚至井喷等复杂情况。从钻进与起钻速度控制、钻开浅层气井段处理流程等方面提出了处理浅层气的措施及关键技术,来预防浅层气井的危害。

There are shallow gas zones in many blocks,and shallow gas formations are buried shallowly.During the formation process,with abnormal pressure,shallow gas has many effects on oilfield drilling.The drilling process will cause well kick and gas.Intrusion,wellbore collapse and even blowout and other complex situations.In terms of drilling and tripping speed control,and the treatment process of drilling shallow gas wells,measures and key technologies for the treatment of shallow gas have been proposed to prevent the hazards of shallow gas wells.