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本文介绍了吉7井区钻井情况,根据该区块的地质特点,针对钻井周期长、新近系、古近系膏质、钙质泥岩发育,遇水易膨胀,缩径严重和卡钻、及侏罗系可钻性差,机械钻速低,钻井过程中易斜和缩径等制约钻井提速的问题,结合多口井的实践,从钻井参数的优选、钻头选型、分段使用与地层相配伍钻井液体系、钻具组合优化等方面进行阐述,探索出一些适合于吉7井区钻井的技术措施,缩短钻井周期,为进一步提高钻井速度提供好的经验。
In this paper, the drilling conditions of Ji 7 well area are introduced. According to the geologic characteristics of this block, aiming at the problems of long drilling cycle, Neogene, Paleogene system, development of calcareous mudstone and calcareous mudstone, Jurassic drilling ability is poor, ROP is low, the drilling process is easy to ramp and diameter reduction constraints such as speeding up the drilling, combined with the practice of multi-well, drilling parameters from the selection of bit selection, the use of sub-layer and phase Compatibility of drilling fluid system, optimization of drilling tools and other aspects to explore some suitable for drilling wells in Kyrgyzstan 7 technical measures to shorten the drilling cycle, to further improve the drilling speed to provide good experience.