Anisotropic damage model of wellbore cement sheath for underground salt cavern gas storage
文献类型：期刊论文
| 作者 | He, Tao1,2; Wang, Tongtao1,3; Xie, Dongzhou1,2; Liu, Junhua4; Daemen, J. J. K.5 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-02-21 |
| 卷号 | 320页码:15 |
| ISSN号 | 0950-0618 |
| 关键词 | Underground salt cavern gas storage Completion cement Anisotropy damage Wellbore failure Constitutive equation |
| DOI | 10.1016/j.conbuildmat.2021.126284 |
| 英文摘要 | Underground salt cavern gas storages have high injection-production efficiency and fast gas injection-delivery switching speed, which has a significant advantage in peak shaving of gas supply. As the weak part of the gas storage wellbore, the cement sheath requires stability analysis. The main motivation for this paper is to propose a model that can characterize the anisotropic damage and use it for cement sheath failure analysis. First, an anisotropic damage evolution model is established based on the principle of thermodynamic irreversibility, and a numerical solution method is given for this model. Then, the model has been verified from three parts: the damage differences in tension and compression and the strengthening effect of confining pressure were verified by mechanical tests; the relationship between anisotropic damage and micro-cracks initiation was verified by test deformation results; a two-stage loading and unloading test was performed to verify the mechanism of anisotropic damage, and the prediction error of cement strength was less than 5%. Based on a user-defined function in the finite element software, the model was developed into a constitutive equation and embedded in the numerical calculation. Finally, the anisotropic damage model is applied to analyze the failure of the cement sheath and to predict the formation of the micro annulus and radial cracks in the wellbore of a gas storage salt cavern. Compared with isotropic damage, the prediction accuracy of the anisotropic damage model for the micro annulus and radial cracks is improved by 50%. |
| 资助项目 | National Natural Science Foundation of China[42072307] ; Hubei Province Outstanding Youth Fund[2021CFA095] ; Special Fund for Strategic Pilot Technology of Chinese Academy of Sciences[XDPB21] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDC10020300] |
| WOS研究方向 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCI LTD |
| WOS记录号 | WOS:000742600900001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/30790]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Wang, Tongtao |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Rock & Soil Mech, Hubei Key Lab Geoenvironm Engn, Wuhan 430071, Peoples R China 4.PetrolChina, Engn Serv Ctr, Drilling Engn Co BHDC 2, Langfang 065007, Hebei, Peoples R China 5.Univ Nevada, Mackay Sch Earth Sci & Engn, Reno, NV 89557 USA |
| 推荐引用方式 GB/T 7714 | He, Tao,Wang, Tongtao,Xie, Dongzhou,et al. Anisotropic damage model of wellbore cement sheath for underground salt cavern gas storage[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,320:15. |
| APA | He, Tao,Wang, Tongtao,Xie, Dongzhou,Liu, Junhua,&Daemen, J. J. K..(2022).Anisotropic damage model of wellbore cement sheath for underground salt cavern gas storage.CONSTRUCTION AND BUILDING MATERIALS,320,15. |
| MLA | He, Tao,et al."Anisotropic damage model of wellbore cement sheath for underground salt cavern gas storage".CONSTRUCTION AND BUILDING MATERIALS 320(2022):15. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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