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Reasons and judgments of the drill pipe slipping during the use of engineering drilling rig
Reasons and judgments of the drill pipe slipping during the use of engineering drilling rig

Reasons and judgments of the drill pipe slipping during the use of engineering drilling rig
Release time：
2019-03-08
The drill pipe is fixed on the main hoisting reel by a wire rope, and the drill pipe can be raised or lowered correspondingly when the reel is wound or the wire rope is placed. The power of the reel comes from the main hoisting motor that has been decelerated several times.
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Five precautions for using a crawler drill
Five precautions for using a crawler drill

Five precautions for using a crawler drill
Release time：
2019-03-08
When stopping work in a short time, a small amount of pressure should be given to prevent the sand from invading the inside of the rig impactor. If the rig is stopped for a long time, the impactor should be lifted 1-2 meters away from the bottom of the hole;
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The importance and necessity of the selection of water well drilling rigs
The importance and necessity of the selection of water well drilling rigs

The importance and necessity of the selection of water well drilling rigs
Release time：
2019-04-25
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