What should I do when encountering sticking?

Stuck Drill Solution

(1) Downward loosening

The double-bottom or single-bottom drill bucket is stuck in the air in the hole, and the bucket is still several meters away from the bottom of the hole. Regardless of whether it is equipped with friction resistance or a machine-lock drill pipe, the main coil wire rope is slack, and the power head is slack. Lift to the highest position, pressurize downward continuously, and rotate forward and reverse repeatedly at the same time (the load will rotate in the opposite direction as soon as the load rises), and push the stuck drill bucket downward until the stuck drill bucket becomes loose, and then test Lift, lower and turn left and right to prevent the drill bucket from being stuck again until the drill bucket is lifted out of the hole.

(2) Small impact drill

A small impact drill can be used to lower the small impact drill from the distance between the orifice and the drill pipe to the stuck drill, and try to impact downward. The main coil wire rope is loosened until the stuck drill If the bucket is loose, lower the engine of the drilling rig to idle speed, and try to rotate and lift it up and down to prevent the drill from sticking again until the drilling bucket is lifted out of the hole.

(3) Divers

If there is no sediment or the sediment is cleaned, the diver hangs on the bottom hanging ring, and lifts the bottom plate together with the drill pipe using the sub-coil or crane to eliminate the stress of sticking and lift it out of the hole simultaneously with the drill pipe.

If the bottom plate cannot be caught by the hole diameter or sediment, the diver can also remove the drill pipe pin, lift the drill pipe out of the hole, and finally use the impact drill to wash out the drill bucket.

(4) Directional blasting

Use mud, air pump punching, or reverse circulation to treat the sediment. Ask a directional blasting expert to put explosives into the bottom of the drill body, detonate the explosives to blow up the drill body of the drill bucket, and lift the drill pipe out of the hole.

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