Failure mechanism of gas storage salt cavern cement sheath under the coupling effect of plasticity and fatigue damage
文献类型：期刊论文
| 作者 | He, Tao2,5; Wang, Tongtao3,5; Wang, Duocai4; Xie, Dongzhou2,5; Daemen, J. J. K.1 |
| 刊名 | CONSTRUCTION AND BUILDING MATERIALS
 |
| 出版日期 | 2022-11-07 |
| 卷号 | 354期号:-页码:- |
| 关键词 | Gas storage salt cavern Fatigue damage Plastic deformation Low -quality cementing Wellbore leakage |
| ISSN号 | 0950-0618 |
| 英文摘要 | Due to their good air tightness and stability, gas storage salt caverns are widely used in rapid peak shaving of natural gas. The wellbore is used to connect the cavern to the surface pipeline, and its integrity can usually be guaranteed after cementing and can be verified by logging. In gas injection and production, the tightness of the cement sheath will deteriorate, which may lead to gas leakage accidents. To explore the wellbore integrity during operations, a theoretical model considering fatigue damage and plasticity is established, and constitutive equations are developed for numerical simulation. The model in this paper has been verified by mechanical tests and has good stability and accuracy. Through experiments and simulations, the following conclusions are drawn: (1) The coupling of plasticity and damage can rapidly lead to failure of the wellbore cement sheath interface. Only calculating plasticity or damage may overestimate the integrity of the cement sheath. (2) Fatigue damage and plastic strain under cyclic loading will be concentrated locally, mainly at the interface between the cement sheath and the casing, that is, the inner cemented surface is more likely to fail. (3) The plasticity and damage evolution of the cement sheath have different sensitivities to different cementing defects. Low-quality cementing such as lack of cement sheath will lead to rapid accumulation of wellbore plastic strain and damage. However, casing deviation does not increase plasticity and damage evolution. |
| 学科主题 | Construction & Building Technology ; Engineering ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000868931500001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35403]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Mackay School of Earth Sciences and Engineering, University of Nevada, Reno 89557, Nevada, USA 2.University of Chinese Academy of Sciences, Beijing 100049, China 3.Hubei Key Laboratory of Geo-Environmental Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.PipeChina West East Gas Pipeline Company, Shanghai 200120, China 5.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China |
| 推荐引用方式 GB/T 7714 | He, Tao,Wang, Tongtao,Wang, Duocai,et al. Failure mechanism of gas storage salt cavern cement sheath under the coupling effect of plasticity and fatigue damage[J]. CONSTRUCTION AND BUILDING MATERIALS,2022,354(-):-. |
| APA | He, Tao,Wang, Tongtao,Wang, Duocai,Xie, Dongzhou,&Daemen, J. J. K..(2022).Failure mechanism of gas storage salt cavern cement sheath under the coupling effect of plasticity and fatigue damage.CONSTRUCTION AND BUILDING MATERIALS,354(-),-. |
| MLA | He, Tao,et al."Failure mechanism of gas storage salt cavern cement sheath under the coupling effect of plasticity and fatigue damage".CONSTRUCTION AND BUILDING MATERIALS 354.-(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。