In the process of coal exploration and production,geological drilling technology plays a very important role.It is very important to recognize the characteristics of geological drilling technology in coal mines for selecting a suitable drilling method.The classification of drilling technology,including surface directional drilling technology,surface vertical drilling technology and common drilling technology was introduced.The application of drilling technology in coal mines was analyzed,which can verify the occurrence of coal seams,the development of mine water.The problems of drilling technology were discussed,such as low drilling efficiency,high exploration cost,hole deviation and hole collapse.It can provide some technical reference for coal mine geological drilling.
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