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Coal Geology ＆ Exploration. 2024, (12) Core
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Microscopic fracture characterization and permeability evolutionary patterns of granites under cyclic thermal shockChinese Full Text

HE Jiangfu;REN Chengcheng;HE Kun;YU Qihang;LI Xinru;DENG Xu;State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University;School of Resources and Safety Engineering, Chongqing University;

Abstract: [Objective] This study aims to reveal the microscopic damage characteristics and permeability evolutionary patterns of high-temperature granite reservoirs fractured under cyclic thermal shock produced by low-temperature fluids like drilling fluids and circulating heat recovery media in the exploitation process of the enhanced geothermal systems（EGSs）. [Methods] Using experiments on the fracturing characteristics of high-temperature granites under the conditions of varying cooling methods, number... More
Keywords：

high-temperature granite; cyclic thermal shock; CT scan-based 3D reconstruction; fracture criterion; Avizo-COMSOL; enhanced geothermal system（EGS）;

  • Series：

    (B) Chemistry/ Metallurgy/ Environment/ Mine Industry; (A) Mathematics/ Physics/ Mechanics/ Astronomy

  • Subject：

    Geophysics

  • Classification Code：

    P314

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