Due to high dip angle,rich faults,high-abrasive and poor drillability of formation,problems such as low ROP, conflict between deviation prevention and fast drilling, and long drilling cycle occurred during drilling in Hailar Oilfield of Daqing,hindering the progress of exploration and development. To raise ROP and shorten drilling cycle,in view of geologic feature analysis in Hailar Oilfield,improving ROP matc-hing techniques was studied. The main factors blocking the improvement of ROP were determined through historical wells statistics and geologic feature analysis in Hailar Oilfield. In-depth analysis and study of cas-ing program optimization design, well site test of selected drill bits, drilling parameter optimization, com-pound drilling technology,and vertical drilling techniques had been conducted to find out proper technique measures for the problem mentioned above. Field test of these measures showed the ROP rose by more than 26 percent,drilling cycle shortened by more than 23 percent. Opinions and suggestions are given for the fu-ture well drilling in Hailar Oilfiled.%大庆海拉尔油田地层倾角大、断层多、研磨性强、可钻性差,存在钻井速度低、防斜打快矛盾突出、钻井周期长等问题,严重影响了海拉尔油田勘探开发进程.为了提高海拉尔油田钻井速度,缩短钻井周期,针对海拉尔地区的地质特征,开展了提速配套技术攻关.通过统计海拉尔油田已钻井资料和分析地层的特殊地质特征,找出了影响该油田钻井速度提高的主要因素,在井身结构优化设计、优选钻头、强化钻进参数、采用复合钻井技术、应用垂直钻井工具等方面进行了深入分析和研究,制定了合理的技术措施,并进行了现场试验,钻井速度提高26％以上,钻井周期缩短23％以上.这表明海拉尔油田钻井提速配套工艺技术对于该油田的高效开发具有重要意义,但还需加强高效钻头和高性能动力钻具的研制与引进,以及钻井新技术的应用,以进一步提高钻井速度.
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