Review on the kerogen deformation mechanism

¹ Chemistry and Material Science, Langfang Normal University, 100 Aiminxi Road, Langfang 065000, Hebei Province, P. R. China
² State Key Laboratory of Heavy Oil Processing, China University of Petroleum (Beijing), 18 Fuxue Road, Beijing 102249, P. R. China
³ College of Liberal Arts and Sciences, the University of Illinois at Chicago, 1200 W Harrison Street, Chicago, 60607, Illinois, USA

^* Corresponding author: zhenghuimin@lfnu.edu.cn

Abstract

Shale gas is unconventional natural gas energy stored in shale, and is one of the important substitutes for conventional oil and gas resources. Since amorphous kerogen is the main component of shale organic matter and has a high degree of deformation ability, it is a key factor to improve shale gas recovery. As an emerging mining technology CS-EGR, the CO₂ injection method replaces the hydraulic pressure method, thereby alleviating the greenhouse effect and energy crisis. The basic understanding of the microscopic mechanism of the multicomponent competitive adsorption and diffusion of the adsorbate in kerogen will provide a theoretical basis and guidance for further understanding of kerogen deformation and further CS-EGR. Starting from the summary of experimental research, this paper systematically summarizes the kerogen model used for kerogen deformation research and discusses the effects of adsorbate, load, moisture, temperature, pressure, and geological depth on different kerogen structures of different maturity. The effect of kerogen deformation.