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冀东油田十分注重通过老井的修复来完善注采井网的布置,取换套管作业是修复套管损坏井的有效手段之一。针对L 150X 2井的井下技术状况,结合现有修井工艺技术,优化工艺技术措施,采用找鱼头、保鱼、打通道、切割套管、打捞、套管回接等技术,成功地实施了L 150X 2井的取换套管作业,这一取换套管工艺技术可供相同井况的井借鉴。
Jidong Oilfield attaches great importance to improving the layout of injection well and well pattern through the repair of the old wells. Replacement of the casing operation is one of the effective means to repair the damaged casing of the casing. In view of the underground technical condition of well L 150X 2, the existing workover technology and optimization of technical measures are adopted, and the techniques of finding fish head, fish, tunneling, cutting casing, salvage and casing back connection are successfully implemented L 150X 2 well replacement casing operation, this replacement casing technology for wells of the same well conditions for reference.