苏里格气田属地层岩性圈闭性低压、低孔、低渗气藏,采用常规开发方式开发效果不佳。针对苏里格气田压力下降快、砂体连通性差等特点,开发了水平井裸眼分段压裂工具。对裸眼完成的井,在预定井段悬挂裸眼封隔器、压力开启滑套、投球开启滑套等工具,实现压裂作业井段横向选择性分段隔离。根据压裂段数进行分段压裂,一趟管柱实现全井段的压裂作业,从而扩大渗流面积,沟通更多的含气砂体,实现高效开发的目的。介绍了相关配套工具与室内试验、现场试验及作业应用情况,逐渐实现了规模化应用。 The Sulige gas field is lithologic trapped low-pressure, low-porosity and low-permeability gas reservoirs, which are not well developed by conventional development methods. In view of the pressure drop of the Sulige Gasfield and the poor connectivity of the sand body, a horizontal well fractured fracturing tool was developed. For a hole completed by the naked eye, a tool such as an open-hole packer, a pressure-open sliding sleeve, a ball-open sliding sleeve and the like is suspended in a predetermined interval to achieve lateral selective segmental isolation in a fracturing operation well section. According to the number of fracturing fracturing section, a trip to achieve full well section fracturing operations, thereby expanding the seepage area, communicate more gas-bearing sand, and achieve the purpose of efficient development. Introduced the relevant supporting tools and laboratory tests, field trials and job applications, and gradually realized the large-scale applications.