A steerable directional drilling and coring apparatus and method

By designing a controllable directional turning core drilling equipment, the problem of synchronizing turning drilling and core sampling under complex geological conditions in traditional drilling technology has been solved, achieving accurate exploration and data integrity in complex geological areas, and improving exploration results and engineering safety.

CN122190618APending Publication Date: 2026-06-12HENAN UNIV OF SCI & TECH +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN UNIV OF SCI & TECH
Filing Date
2026-04-17
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

Traditional straight core drilling technology cannot achieve simultaneous drilling and coring at angles under complex geological conditions, resulting in insufficient exploration accuracy and coverage, and failing to meet the exploration needs of deep and complex geological areas.

⚗Method used

A controllable directional turning drilling core equipment was designed, including a support module and a drilling sampling module. The directional turning of the drill bit and sampling are achieved through a combined chain, a track box and an angle adjustment component. Combined with the track extension box, it can adapt to the exploration needs of different depths.

🎯Benefits of technology

It enables precise drilling in inaccessible or space-restricted areas, optimizes borehole trajectory layout, improves exploration coverage and data integrity, and provides reliable technical support for resource assessment and engineering safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of drilling technology, in particular to a controllable directional turning drilling core equipment and drilling method, the device comprises a support module and a drilling sampling module; the support module is installed on the ground, the support module is used for supporting, lowering, lifting control to the drilling sampling module; the drilling sampling module comprises a track box, a combined chain and a drill bit assembly, the combined chain is connected with the drill bit assembly, the track box can control the combined chain stretching and retracting and the rotation angle of the combined chain, and the drill bit assembly is used for rotating drilling or sampling. The present application can implement drilling in the area which cannot be entered or has limited space, and can realize long-distance and controllable turning drilling in any direction and different depth, so as to optimize the drilling trajectory arrangement, realize accurate coring, definition and the like of the target ore body or geological boundary, improve the exploration coverage and data integrity, and provide more reliable technical support for resource evaluation and engineering safety.
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