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01PCDS-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。
01PCDS-I Precision Managed Pressure Drilling System CNPC Drilling Engineering Technology Research Institute PCDS-I Precision Managed Pressure Drilling System independently developed by National Science and Technology Major Project. The set of constant bottom hole pressure and micro-flow control function in one, can be nearly balanced, underbalance fine controlled pressure drilling operation, through the annular pressure monitoring and control, back pressure compensation can effectively avoid narrow-density window of wells, wells and other drilling Complex situation. The system has filled the gaps in the country, breaking the monopoly of foreign countries, reached the advanced level of similar foreign technologies.