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捞锚本是石油钻井队打捞井管、泵管的一种工具.它的结构简单,性能可靠,操作方便.但它有一个明显的缺点,即一旦捞住井内事故管之后就再也退不回来(只能下放不能上行),想改用其他方法处理也就无法可施了.因此人们称之为“死捞锚”.为克服这一缺点并使之适合于地质岩芯钻探和水文水井钻探之用,我们在原“死捞锚”结构的基础上,增加了一套由水压控制的安全复位装置.经实际使用,效果很好.我们曾三
The fishing anchor is a tool for drilling oil well pipe and pump pipe by the oil drilling team and has the advantages of simple structure, reliable performance and convenient operation, but has the obvious disadvantage that once the accident pipe is caught in the well, it is no longer withdrawn Back (can only be decentralized can not go up), would like to use other methods to deal with will be impracticable so people call it “dead fishing anchor.” To overcome this shortcoming and make it suitable for geological core drilling and hydrological wells Drilling purposes, we have added a set of hydraulically controlled safety reset device, based on the original “fishing anchor” structure, the actual use, the effect is very good. We have three