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THERMAL-INDUCED FAULT WEAKENING AND FLUID PRESSURIZATION DURING FLUID INJECTION

文献类型：期刊论文

作者Chen, Shenghong1,2; Lv, Yanxin3; Fang, Xiaoyu3; Zuo, Jinsong3; Li, Haibo4; Yuan, Chao5; Liu, Weiji6
刊名CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS
出版日期2024-03-01
卷号60期号:1页码:217-227
关键词fault weakening thermal pressurization fluid injection fault slip CO2 injection
ISSN号0009-3092
DOI10.1007/s10553-024-01673-2
英文摘要Thermal pressurization of the trapped pore fluid is considered to be a widespread fault weakening during fluid injection in confined geological formations. Tremendous amounts of heats will be generated within the narrow shear zone during fault slip. Considering the melting of the fault gouge, the fault seal zone is adopted to construct the fluid pressurization model, thermal pressurization implemented in Comsol Multiphysics is established to illustrate the fault weaken coefficient and effective normal stress during fluid injection. The friction weakening coefficients mT and mF are proposed to research the performance of fault weakening during fluid injection. The results indicate that, the friction coefficients mT and mF both exhibit the initially decreasing and then increasing tendency, and thermal-induced fault weakening of CO2 injection occurs earlier than that of water injection. It was found that initial pore pressure and fault sealing porosity have a negligible influence on the evolutions of friction weakening and effective normal stress. Initial normal stress and fault sealing permeability have certain obvious influences on fault weakening during CO2 injection. Fault thickness is the primary factor influencing the friction weakening coefficient. When the fault thickness is over 1 mm, the variation of fault weakening is totally different from that when the thickness is less than 1 mm. This investigation of friction weakening during fault slip provides an effective reference for fluid injection.
资助项目National Natural Science Foundation of China[52274231] ; National Natural Science Foundation of China[52034006] ; ZhanJiang Science and Technology Project[2022A01061] ; Fine suitability evaluation of geological carbon storage in offshore Yingqiong Basin of Hainan Province[ZGT2023035] ; Evaluation and target optimization of gas hydrate resources in Qiongdongnan Basin[ZDYF2023GXJS008]
WOS研究方向Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:001186298400002
出版者SPRINGER
源URL[http://119.78.100.198/handle/2S6PX9GI/40955]  
专题中科院武汉岩土力学所
通讯作者Chen, Shenghong; Lv, Yanxin
作者单位1.Sanya Inst South China Sea Geol, Guangzhou Marine Geol Survey, Sanya, Peoples R China
2.Dept Nat Resources & Planning Hainan Prov, Haikou, Peoples R China
3.Southern Marine Sci & Engn Guangdong Lab Zhanjiang, Zhanjiang, Peoples R China
4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan, Peoples R China
5.Shenzhen Univ, Coll Civil & Transportat Engn, Shenzhen Key Lab Deep Engn Sci & Green Energy, Shenzhen, Peoples R China
6.Southwest Petr Univ, Sch Mechatron Engn, Chengdu, Peoples R China
推荐引用方式
GB/T 7714		 Chen, Shenghong,Lv, Yanxin,Fang, Xiaoyu,et al. THERMAL-INDUCED FAULT WEAKENING AND FLUID PRESSURIZATION DURING FLUID INJECTION[J]. CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS,2024,60(1):217-227.
APA Chen, Shenghong.,Lv, Yanxin.,Fang, Xiaoyu.,Zuo, Jinsong.,Li, Haibo.,...&Liu, Weiji.(2024).THERMAL-INDUCED FAULT WEAKENING AND FLUID PRESSURIZATION DURING FLUID INJECTION.CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS,60(1),217-227.
MLA Chen, Shenghong,et al."THERMAL-INDUCED FAULT WEAKENING AND FLUID PRESSURIZATION DURING FLUID INJECTION".CHEMISTRY AND TECHNOLOGY OF FUELS AND OILS 60.1(2024):217-227.

入库方式： OAI收割

来源：武汉岩土力学研究所

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