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What is an overshot and how does it work?
Release time:
2019-01-14
Author:
Source:
The salvage device is a new type of salvage tool for modern professional salvage or looking for sunken drill pipe bits. It is divided into male and female cones. How to work: when the fishing device enters the center pipe of the drill bit, the slider is moved up to insert the fishing device head into the center pipe. when the fishing device is moved up, the slider is moved down and tightened. the drill bit is lifted up by friction. after the fishing device is pulled out, the slider is loosened. the sliding device is tightened along the connecting rope on the block and the center pipe is pulled out. however, the position of the drill bit at the bottom of the hole should be determined before fishing device, A thin plate can be bolted around the bottom of the drill pipe, the drill pipe is dropped to the bottom of the hole, pressed onto the drill bit, and put it forward after waiting for a moment, which can be confirmed by observing the indentation left by the drill bit center tube on the board.
Key words:
Fishing, center, drill bit, rotary table, drill pipe, slider, drill rig, insert, position
