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A. V. Tymchur
A. V. Tymchur
Mining Institute UrD RAS
Mining Institute UrD RAS


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Issues of fracture research in drilling explosive boreholes

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According to the principles of rock destruction, mechanical drilling of wells can be carried out in several ways, differing in their physical nature. For medium- and high-strength rock, roller cone bits with milled cutting structure or reinforced with high-strength tungsten carbide pins are used. The roller cone method of drilling implements the principle of bottom-hole destruction due to static impingement of the cutting structure, the rock is destroyed mainly by a piercing, partially blocked chipping. From the energy point of view, such impact on the bottom hole is not optimal.

How to cite: Sukhov , R. I., Lebedkin , Y. M., & Tymchur , A. V. (2001). Issues of fracture research in drilling explosive boreholes. Journal of Mining Institute, 148(2), 167-169. Retrieved from