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石油堪探开发科学研究院钻井工艺研究所与华北石油管理局合作,采用低密度水包油乳化钻井液,于1991年3月27日顺利完成我国第一口中曲率半径水平井-任平一井。该井完井实际钻斜深3180m,垂深2699.43m,最大井斜角93.6度,水平位移739m,穿越油层460m,85度以上的水平段为300m。采取裸眼完井,经测试10mm油嘴产油122.4方/日,下100方的电潜泵抽吸23小时产油111方。将来投产后较周围直井(日平均产油10-20方,含水82.5-90%)产量可望提高4倍。
Exploration Institute of Petroleum Exploration and Production Exploration Institute of drilling technology and North China Petroleum Administration, the use of low-density oil-in-water emulsion drilling fluid, on March 27, 1991 successfully completed the first of China’s first horizontal radius of curvature of the well - Ren Ping Yi Well . The actual completion of the well drilling depth of 3180m, the depth of 2699.43m, the maximum inclination angle of 93.6 degrees, the horizontal displacement of 739m, 460m across the reservoir, 85 degrees above the horizontal section of 300m. Take open-hole completion, the tested 10mm nozzle oil production 122.4 square / day, the next 100 square submersible pump suction 23 hours oil production 111 square. In the future, it will be expected to increase the production volume by 4 times than the surrounding vertical wells (daily average oil production of 10-20 square meters and water content of 82.5-90%).