Mathematical modeling of rocks plasma disintegration process at borehole reaming

Abstract The mathematical model of thermal disintegration of rocks during the reaming of boreholes, which takes into account the compatibility of the thermogas dynamic problem for a high-temperature heat transfer agent and the thermal problem for the rock heated by this heat transfer agent, has been...

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Bibliographic Details
Published inIOP conference series. Earth and environmental science Vol. 1156; no. 1; pp. 12037 - 12043
Main Authors Potapchuk, Iryna, Zhevzhyk, Oleksandr, Kholiavchenko, Leonid, Pertsevyi, Vitalii, Bosyi, Dmytro, Drubetska, Tetiana, Potapchuk, Anna
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.04.2023
Subjects
Boreholes
Disintegration
Heat transfer
High temperature
Magnetite
Mathematical analysis
Mathematical models
Productivity
Quartzite
Reaming
Rock masses
Rocks
Temperature distribution
Thermal stress
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Summary:Abstract The mathematical model of thermal disintegration of rocks during the reaming of boreholes, which takes into account the compatibility of the thermogas dynamic problem for a high-temperature heat transfer agent and the thermal problem for the rock heated by this heat transfer agent, has been developed. The mathematical model is based on the laws of conservation of mass, quantity of motion and energy and takes into account the dependences for determining the thermal stresses and the temperature of brittle fracture of rocks. As a result of solving the equations of the mathematical model, the temperature distribution in the rock mass (magnetite quartzite) during heating in the process of borehole plasma reaming and productivity of the borehole plasma reaming process are obtained. Calculated and experimentally determined productivity of the process of plasma reaming of the borehole were compared.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/1156/1/012037