CO2注入引起井筒周围岩石损伤的热孔弹耦合分析

Abstract
Figure/Table
References
Related Citation (15)

Download: PDF (23511 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A coupled thermo-poroelastic model is proposed with integration of a damage factor. The proposed thermo-poroelastic model is firstly utilized to simulate the thermo-hydro-mechanical(THM) response of homogeneous elastic medium；and its accuracy of the numerical results is verified through comparing to the decoupled analytical solution. Secondly，the thermo-poroelastic model is employed to predict stress response and damage propagation around the wellbore due to CO2 injection. Finally，this model is applied to heterogeneous rock under a Weibull distribution to predict stress response and permeability change. The experimental results indicate that the supercritical CO2 injection can change the rock?s strength state and permeability distribution significantly. Too high injection rates will facilitate the tensile damage and extend the tensile damage zone. Heterogeneous rock material is more vulnerable to tensile damage and permeability increase.

Key words： rock mechanics CO2 geological storage analytical solution finite element method themo-poroelastic coupling damage propagation wellbore

Received: 21 May 2013

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors

Cite this article:

URL:

https://rockmech.whrsm.ac.cn/EN/Y2013/V32/I11/2205

[1]	孙枢. CO2地下封存的地质学问题及其对减缓气候变化的意义[J]. 中国基础科学，2006，(3)：17-22.(SUN Shu. Geological problems of CO2 underground storage and its significance on mitigating climate change[J]. China Basic Science，2006，(3)：17-22.(in Chinese)) " target="_blank">
[2]	SOLOMON S，QIN D，MANNING M，et al. Climate change 2007：the physical science basis-contribution of working group I to the fourth assessment report of the intergovernmental panel on climate change[M]. Cambridge：Cambridge University Press，2007：131-143. " target="_blank">
[3]	李小春，方志明，魏宁，等. 我国CO2捕集与封存的技术路线探讨[J]. 岩土力学，2009，30(9)：2 674-2 678.(LI Xiaochun，FANG Zhiming，WEI Ning，et al. Discussion on technical roadmap of CO2 capture and storage in China[J]. Rock and Soil Mechanics，2009，30(9)：2 674-2 678.(in Chinese)) " target="_blank">
[4]	SCHEMBRE-MCCABE J M，KAMATH J，GURTON R M. Mechanistic studies of CO2 sequestration[C]// The International Petroleum Technology Conference. Dubai：[s.n.]，2007：IPTC 11 391. " target="_blank">
[5]	VAN DER MEER L，VAN WEES J D. Limitations to storage pressure in finite saline aquifers and the effect of CO2 solubility on storage pressure[C]// The SPE Annual Technical Conference and Exhibition. San Antonio，TX，USA：[s.n.]，2006：24-27. " target="_blank">
[6]	BACHU S. Sequestration of CO2 in geological media：criteria and approach for site selection in response to climate change[J]. Energy Conversion and Management，2000，41(9)：953-970. " target="_blank">
[7]	LU C，HAN W S，LEE S Y，et al. Effects of density and mutual solubility of a CO2-brine system on CO2 storage in geological formations：“Warm” vs.“cold” formations[J]. Advances in Water Resources，2009，32(12)：1 685-1 702. " target="_blank">
[8]	BIOT M A. General theory of three-dimensional consolidation[J]. Journal of Applied Physics，1941，12(2)：155-164. " target="_blank">
[9]	RICE J R，CLEARY M P. Some basic stress diffusion solutions for fluid-saturated elastic porous-media with compressible constituents[J]. Reviews of Geophysics，1976，14(2)：227-241. " target="_blank">
[10]	DETOURNAY E，CHENG A H D. Poroelastic response of a borehole in a non-hydrostatic stress-field[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1988，25(3)：171-182. " target="_blank">
[11]	PALCIAUSKAS V V，DOMENICO P A. Characterization of drained and undrained response of thermally loaded repository rocks[J]. Water Resources Research，1982，18(2)：281-290. " target="_blank">
[12]	MCTIGUE D F. Thermoelastic response of fluid-saturated porous rock[J]. Journal of Geophysical Research-Solid Earth and Planets，1986，91(B9)：9 533-9 542. " target="_blank">
[13]	RUTQVIST J，TSANG C F. A study of caprock hydromechanical changes associated with CO2-injection into a brine formation[J]. Environmental Geology，2002，42(2/3)：296-305. " target="_blank">
[14]	LI Q，WU Z S，LI X. Prediction of CO2 leakage during sequestration into marine sedimentary strata[J]. Energy Conversion and Management，2009，50(3)：503-509.
[15]	LI Q，WU Z S，LEI X L，et al. Experimental and numerical study on the fracture of rocks during injection of CO2-saturated water[J]. Environmental Geology，2006，51(7)：1 157-1 164. " target="_blank">
[16]	LI Q，WU Z S，LI X，et al. Numerical simulation on crust deformation due to CO2 sequestration in deep aquifers[J]. Journal of Applied Mechanics，JSCE，2002，(5)：591-600. " target="_blank">
[17]	张玉军. CO2注入岩体的热-气-应力耦合二维弹塑性有限元分析[J]. 岩土力学，2009，30(3)：582-586.(ZHANG Yujun. 2D elastoplastic finite element analysis of coupled thermo-gas-mechanical process in CO2 injection in strata[J]. Rock and Soil Mechanics，2009，30(3)：582-586.(in Chinese)) " target="_blank">
[18]	张玉军，张维庆. CO2地层注入的热流力耦合模型及有限元分析[J]. 地下空间与工程学报，2010，6(3)：509-515.(ZHANG Yujun，ZHANG Weiqing. Coupled thermo-fluid-mechanical model and FEM analysis of subsurface rock masses with CO2 injection[J]. Chinese Journal of Underground Space and Engineering，2010，6(3)：509-515.(in Chinese)) " target="_blank">
[19]	KACHANOV L M. Stability of thin-walled bars in the elasto plastic range[J]. Doklady Akademii Nauk SSSR，1956，107(6)：803-806. " target="_blank">
[20]	SIMAKIN A，GHASSEMI A. Modelling deformation of partially melted rock using a poroviscoelastic rheology with dynamic power law viscosity[J]. Tectonophysics，2005，397(3/4)：195-209. " target="_blank">
[21]	SELVADURAI A P S. Stationary damage modelling of poroelastic contact[J]. International Journal of Solids and Structures，2004，41(8)：2 043-2 064. " target="_blank">
[22]	TANG C，THAM L，LEE P，et al. Coupled analysis of flow，stress and damage(FSD) in rock failure[J]. International Journal of Rock Mechanics and Mining Sciences，2002，39(4)：477-489.
[23]	LI S P，LI Y S，LI Y，et al. Permeability strain equations corresponding to the complete stress-strain path of Yinzhuang sandstone[J]. International Journal of Rock Mechanics and Mining Sciences and Geomechanics Abstracts，1994，31(4)：383-391. " target="_blank">
[24]	KIYAMA T，KITA H，ISHIJIMA Y，et al. Permeability in anisotropic granite under hydrostatic compression and triaxial compression including post-failure region[C]// The 2nd North American Rock Mechanics Symposium. Montreal，Quebec，Canada：[s.n.]，1996：19-21. " target="_blank">
[25]	COSTE F，BOUNENNI A，CHANCHOLE S，et al. A method for measuring mechanical，hydraulic and hydromechanical properties during damaging in materials with low permeability[C]// Proceedings of the International Workshop on Geomechanics. Paris，France：[s.n.]，2002：11-12. " target="_blank">
[26]	GHASSEMI A，DIEK A. Porothermoelasticity for swelling shales[J]. Journal of Petroleum Science and Engineering，2002，34(1/4)：123-135. " target="_blank">
[27]	LI LC，TANG CA，THAM LG，et al. Simulation of multiple hydraulic fracturing in non-uniform pore pressure field[J]. Advanced Materials Research，2005，(9)：163-172. " target="_blank">
[28]	ZHU W C，TANG C A. Micromechanical model for simulating the fracture process of rock[J]. Rock Mechanics and Rock Engineering，2004，37(1)：25-56.