提升起重设备是井下作业施工中的重要设备之一,主要由通井机、井架、天车、游动滑车、钢丝绳、吊环、吊卡和吊卡销组成,其中,吊卡销是使用频率最高的工具之一。孤岛油田的井下作业施工受防砂工艺的影响,解卡工艺频繁,此外,起下管柱操作过程中,时常会出现拉力释放的现象,这 Hoist lifting equipment is one of the important equipment in downhole operation. It is mainly composed of well drilling machine, derrick, crane, traveling block, wire rope, lifting ring, elevator and elevator. Among them, One of the highest tools. In Gudao Oilfield, the operation of downhole operation is affected by the sand control technology, and the card jamming process is frequent. In addition, during the operation of lowering the pipe string, the tension release phenomenon often occurs, which