为了使旋转导向套管钻井技术在我国的石油钻井行业中得到应用,介绍了Tesco公司旋转导向套管钻井技术特点,从井下和地面配套设备2方面介绍了旋转导向套管钻井系统的构成,并与常规定向钻具可回收式套管钻井系统进行了对比,同时分析了不适用旋转导向套管钻井技术的情况,借助马来西亚国家石油公司3口批钻井对旋转导向套管钻井技术进行了现场应用.应用结果表明,旋转导向套管钻井技术缩短了总的钻井周期,套管钻井省去了起钻、 通井、 循环和下套管的时间;具备常规旋转导向钻井的优势,降低了滑动钻进的事故发生率,所钻井眼轨迹平滑,并且提高了钻井机械钻速.建议我国加快技术研发,使旋转导向套管钻井技术在我国的海洋钻井中发挥出巨大优势.%The features of Tesco' s rotary steerable casing drilling technology have been introduced, and de-tails have been focused on the technology' s downhole and surface equipment. Comparison with conventional retriev-able directional casing drilling system has been conducted. Conditions that do not suitable for rotary steerable casing drilling technology have been analyzed. Field applications have been conducted in Petronas three wells. Application results show that the rotary steerable casing drilling technology has shortened the overall drilling time by eliminating the time for tripping out, wiper trip, circulation and casing running. The technology has the advantage of conven-tional rotary steerable drilling with reduced accident rate of sliding drilling, smooth wellbore trajectory, and im-proved ROP. Recommendation has been proposed to accelerate the technology development for providing the advan-tage of rotary steerable casing drilling technology in offshore drilling in China.
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