Research results of deformation processes when drilling isotropic rocks by diamond drilling tools
https://doi.org/10.21285/2541-9455-2019-42-1-78-85
Abstract
The purpose of this article is to analyze the results of the conducted analytical and experimental studies of the drilling process of isotropic rock with diamond rock cutting tools and present the relationships between the main parameters of diamond drilling and strength characteristics of solid rocks in the form of curves. The input material for the research is hypotheses supported by analytical calculations and numerous experimental studies on drilling-out the blocks of rocks of different hardness by the diamond rock cutting tool in the test conditions of the Department of Oil and Gas Business of the Irkutsk National Research Technical University. The research results have been processed using the MS Office Excel package and presented in the form of graphical dependencies. The constructed and analyzed curves allow visual estimation of the relationship between the main technical (diameter of the rock-cutting tool, number of simultaneously working cutters), technological (cutting-shearing force, axial load, mechanical drilling speed, type of a cleaning agent, etc.) drilling parameters and the main strength characteristics (breaking stress, total resistance coefficient) of solid isotropic rocks. The effectiveness of the cleaning agent containing surfactants in the drilling of solid rocks with diamond tools has been experimentally proved. The performed analysis allows to widen the existing understanding of the deformation processes occurring when drilling isotropic rocks with diamond rock-cutting tools. On the basis of the presented results recommendations can be made to improve the efficiency of diamond drilling of solid materials. The obtained results can be useful for industrial exploration organizations, as well as applied in the educational process.
About the Author
P. S. Pushmin
Irkutsk National Research Technical University
Russian Federation
Russian Federation
Cand. Sci. (Eng.), Associate Professor of the Department of Oil and Gas Business of the Institute of Subsoil Use
Irkutsk
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For citations:
Pushmin P.S. Research results of deformation processes when drilling isotropic rocks by diamond drilling tools. Earth sciences and subsoil use. 2019;42(1):78-85. (In Russ.) https://doi.org/10.21285/2541-9455-2019-42-1-78-85
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