Overshot

In rope coring drilling operations, the safe recovery of core tubes is a key link to ensure drilling efficiency. The overshot designed specifically for the wireline coring system has become the core tool connecting ground equipment and downhole coring components with its precise grasping ability and reliable operating performance. It effectively solves the problems of cumbersome and inefficient drilling and drilling in the traditional coring process, and provides stable support for deep exploration operations.

Our overshot adopts a modular design and can perfectly adapt to the core tube specifications of various mainstream wireline coring systems, including BQ, NQ, HQ, PQ, and other series. Its connection interface has been precisely processed and can be seamlessly connected with the wireline and winch device of the wireline coring system to ensure uniform and stable tension transmission during the salvage process. The outer diameter of the overshot strictly matches the borehole diameter requirements. It will not cause jamming or friction when moving underground. It can adapt to drilling environments at different depths and can perform stably from shallow holes to deep holes up to 2,000 meters deep.

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