Mortar dynamic coupled model for calculating interface gas exchange between organic and inorganic matters of shale

Cao, Guoen; Jiang, Wenbin; Lin, Mian; Ji, Lili; Xu, Zhipeng; Zheng, Siping; Hao, Fang

doi:10.1016/j.energy.2021.121449

Cited by 1 publication

(2 citation statements)

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“…Shale gas is quietly changing the global energy landscape. , Shale gas has the characteristics of wide distribution, abundant reserves, high efficiency and cleanliness, and great development potential . Therefore, large-scale commercial development is bound to change the energy structure of the entire world and even affect the global economy, geopolitics, and military structure .…”

Section: Introductionmentioning

confidence: 99%

“… 1 , 2 Shale gas has the characteristics of wide distribution, abundant reserves, high efficiency and cleanliness, and great development potential. 3 Therefore, large-scale commercial development is bound to change the energy structure of the entire world 4 and even affect the global economy, geopolitics, and military structure. 5 According to statistics from U.S. Energy Information Administration in 2023: 6 China’s total shale gas reserves are 144 trillion cubic meters, accounting for 20% of the world’s total reserves.…”

Section: Introductionmentioning

confidence: 99%

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Real Gas Effect and Bulk Diffusion Characteristics of Shale Mixed Gas Transport in Microscale Fractures

et al. 2023

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Shale gas reservoirs are rich in microscale fractures. In this paper, the characteristics of gas percolation in microscale fractures are taken as the research object. By coupling the actual gas equation, the multi-component gas equation, and the bulk gas diffusion equation, analytical solutions of the comprehensive percolation equation are obtained. Through mathematical model research, the following conclusions are obtained: (a) after considering the slip flow of the solid surface, the mass flow rate of multi-component gas under different pressure conditions increases by about 20−10,000%. (b) Different from continuous flow and slip flow, the mass flow rate of bulk gas diffusion decreases with pressure increase. (c) The intersection pressure is 31 MPa. When the pressure increases from 0.5 MPa to the pressure at the intersection point, the mass flow rate of integrated flow increases with decrease of the methane content. (d) When the pressure continues to increase from the intersection point pressure, the mass flow rate of integrated flow decreases with decrease of the methane content.

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