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| Thermo-Hydro-Mechanical Modeling of CO2 Sequestration System around Fault Environment | |
Li Q; Wu ZS; Bai YL(白以龙) ; Yin XC(尹祥础); Li XC; Li, Q (reprint author), Natl Inst Adv Ind Sci & Tehcnol, Inst Geol & Geoinformat, AIST Cent 7,1-1-1 Higashi, Tsukuba, Ibaraki 3058567, Japan.
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| Source Publication | Pure and Applied Geophysics
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| 2006 | |
| Volume | 163Issue:11-12Pages:2585-2593 |
| ISSN | 0033-4553 |
| Abstract | Geological sequestration of CO2 (carbon dioxide) shows great potential to reduce Greenhouse gas emissions. However, CO2 injection into geological formations may give rise to a variety of coupled chemical and physical processes. The thermo-hydro-mechanical (THM) impact of CO2 injection can induce fault instability, even possibly lead to seismic activities in and around the disposal reservoir. A sequential coupling approach under some assumptions was proposed in the numerical study to investigate the THM behavior of the CO2 sequestration system concerning the temperature, initial geological stress, injection pressure and CO2 buoyancy. The fault was treated as a flexible contact model. The effects of CO2 injection on the mechanical behavior of the faults were investigated. The Drucker-Prager model and the cap model were used to model the constitutive relationship of formations. The numerical results show that injection pressure sensitively affects the relative slip change of the fault. At the initial stage of the sequestration process, the injection pressure plays a key role in affecting the pore pressure of the formations. However, as time continues, the influence of CO2-induced buoyancy becomes obvious on the pore pressure of the formations. In general, The THM effects of CO2 geosequestration do not affect the mechanical stability of formations and faults. |
| Subject Area | 力学 |
| DOI | 10.1007/s00024-006-0141-z |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000243624700023 |
| WOS Research Area | Geochemistry & Geophysics |
| WOS Subject | Geochemistry & Geophysics |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/15529 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Li, Q (reprint author), Natl Inst Adv Ind Sci & Tehcnol, Inst Geol & Geoinformat, AIST Cent 7,1-1-1 Higashi, Tsukuba, Ibaraki 3058567, Japan. |
| Recommended Citation GB/T 7714 | Li Q,Wu ZS,Bai YL,et al. Thermo-Hydro-Mechanical Modeling of CO2 Sequestration System around Fault Environment[J]. Pure and Applied Geophysics,2006,163,11-12,:2585-2593. |
| APA | Li Q,Wu ZS,白以龙,尹祥础,Li XC,&Li, Q .(2006).Thermo-Hydro-Mechanical Modeling of CO2 Sequestration System around Fault Environment.Pure and Applied Geophysics,163(11-12),2585-2593. |
| MLA | Li Q,et al."Thermo-Hydro-Mechanical Modeling of CO2 Sequestration System around Fault Environment".Pure and Applied Geophysics 163.11-12(2006):2585-2593. |
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