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永1-平1井是是中石化、西北油田分公司重点开发井,也是永进油田先导试验井。三开井段地层为呼图壁组下部、清水河组及西山窑组上部,其中清水河组下部及西山窑组上部泥岩地层垮塌严重,钻井难度大,机械钻速低,三开钻井周期长。本井三开主井眼施工通过井身质量严格控制,牙轮钻头优选,复杂地层事故预防及技术措施细化与严格执行,钻井效率较高,为本区块今后相同类型井的施工提供了借鉴。
Yong 1-Ping 1 well is a key development well of Sinopec and Northwest Oilfield Company and a pilot test well in Yongjin Oilfield. The lower part of the three open sections is the lower Hutubi Formation, the upper part of the Qingshuihe Formation and the Xishanyao Formation. The lower part of the Qingshuihe Formation and the upper part of the Xishanyao Formation are characterized by serious collapse of mudstone formations, difficulty in drilling, low penetration rate, long period of three-open drilling . The well of the three open main borehole construction through rigorous control of well quality, cone bit preferred, complex formation accident prevention and technical measures to refine and strictly enforce the drilling efficiency is high, the future of this block provides the same type of well construction Learn from