Dan Ma1, 2, Hongyu Duan2, Qi Zhang3, *, Jixiong Zhang1, Wenxuan Li2, Zilong Zhou2, Weitao Liu4
CMC-Computers, Materials & Continua, Vol.65, No.3, pp. 2123-2141, 2020, DOI:10.32604/cmc.2020.011430
Abstract Gas fracturing, which overcomes the limitation of hydraulic fracturing, is a
potential alternative technology for the development of unconventional gas and oil
resources. However, the mechanical principle of gas fracturing has not been learned
comprehensively when the fluid is injected into the borehole. In this paper, a damagebased model of coupled thermal-flowing-mechanical effects was adopted to illustrate the
mechanical principle of gas fracturing. Numerical simulation tools Comsol Multiphysics
and Matlab were integrated to simulate the coupled process during the gas fracturing.
Besides, the damage evolution of drilling areas under several conditions was fully
analyzed. Simulation results indicate that the maximum… More >
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