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套管水力内割刀是一种通过泵压加压进刀、转盘带动刀具旋转的套管井下切割工具,用于处理套管事故。这种工具是我局矿机研究大队、井下作业处和威远机修厂、川西北石油勘探指挥部等单位职工紧密配合,以毛主席光辉哲学思想为指导,用不到一个月时间设计和试制出来的。经十三次地面和七次井口试验,于一九七七年八月二十一日在关基井井深2223米处切割七英寸套管,获得一次成功。纯切割九小时九分,起出套管观察上切
Casing hydraulic cutter is a kind of pressure through the pump into the knife, the turntable rotation of the tool to bring the casing downhole cutting tools for casing accident. This tool is mine research team of our bureau, underground operation department and Weiyuan machine repair factory, Northwest Petroleum Exploration Command and other units in close cooperation with workers, Chairman Mao glorious philosophy as a guide, with less than a month’s time to design and trial production from. After thirteen ground and seven wellhead tests, a seven-inch casing was cut at a well depth of 2223 meters on Guanji well on August 21, 1977, and achieved a first success. Pure cut nine hours nine minutes, played a casing observed on the cut