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01 PCDS-Ⅰ精细控压钻井系统中国石油集团钻井工程技术研究院依托国家科技重大专项自主研制的PCDS-Ⅰ精细控压钻井系统,集恒定井底压力与微流量控制功能于一体,可进行近平衡、欠平衡精细控压钻井作业,通过环空压力监测与控制、回压补偿能有效避免窄密度窗口井涌、井漏等钻井复杂情况。该系统填补了国内空白,打破了国外垄断,达到了国外同类技术的先进水平。02连续管技术中石油钻井院在集团公司的支持下,经过多年的技术积淀,先后完成连续管技术与装备(国家863项目)及连续管修井装备与工具等多个国家和集团公司重大研究课题;相继开发出橇装式、车装式、拖挂式及车橇混合式连续管作业机和拖挂式钻机。该系统主要适用于解决深井压力敏感地层、高温高压地层、窄密度窗口地层等条件下的安全钻井问题。
01 PCDS-Ⅰ Precision Managed Pressure Drilling System CNPC Drilling Engineering Technology Research Institute relies on the PCDS-Ⅰ fine controlled pressure drilling system independently developed by the State Key Science and Technology Project. It integrates constant bottom hole pressure and micro-flow control functions, Balanced and underbalanced fine controlled drilling operation, back pressure compensation can effectively avoid the complicated situation of well drilling and well leakage in narrow density windows through annular pressure monitoring and control. The system has filled the gaps in the country, breaking the monopoly of foreign countries, reached the advanced level of similar foreign technologies. 02 Continuous Tube Technology With the support of the Group Corporation, CNPC has completed a series of major research projects in a number of countries and group companies such as continuous tube technology and equipment (National 863 Project) and continuous tube maintenance equipment and tools after many years of technological accumulation. ; Have developed a skid-mounted, car-mounted, trailer-mounted and slewing hybrid continuous tube operation and trailing drilling rig. The system is mainly applied to solve the safe drilling problems under the conditions of deep well pressure sensitive formation, high temperature and pressure stratum, narrow density window formation.