Numerical study on the deformation of soil stratum and vertical wells with gas hydrate dissociation
文献类型：期刊论文
| 作者 | Chen XD; Zhang XH(张旭辉) ; Lu XB(鲁晓兵); Wei W; Shi, YH; Zhang, XH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
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| 刊名 | ACTA MECHANICA SINICA
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| 出版日期 | 2016 |
| 卷号 | 32期号:5页码:905-914 |
| 关键词 | Gas Hydrate Dissociation Flac3d Soil Stratum Well |
| ISSN号 | 0567-7718 |
| DOI | 10.1007/s10409-016-0589-8 |
| 产权排序 | [Chen, Xudong; Zhang, Xuhui; Lu, Xiaobing] Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; [Wei, Wei] Res Inst Petr Explorat & Dev Langfang, Langfang 065007, Peoples R China; [Shi, Yaohong] Guangzhou Marine Geol Survey, Marine Environm & Engn Geol Survey, Guangzhou 510075, Guangdong, Peoples R China |
| 文献子类 | 期刊论文 |
| 英文摘要 | Gas hydrate (GH) dissociates owing to thermal injection or pressure reduction from the well in gas/oil or GH exploitation. GH dissociation leads to, for example, decreases in soil strength, engineering failures such as wellbore instabilities, and marine landslides. The FLAC3D software was used to analyze the deformation of the soil stratum and vertical wells with GH dissociation. The effects of Young's modulus, internal friction angle, cohesion of the GH layer after dissociation, and the thickness of the GH layer on the deformation of soils were studied. It is shown that the maximum displacement in the whole soil stratum occurs at the interface between the GH layer and the overlayer. The deformation of the soil stratum and wells increases with decreases in the modulus, internal friction angle, and cohesion after GH dissociation. The increase in thickness of the GH layer enlarges the deformation of the soil stratum and wells with GH dissociation. The hydrostatic pressure increases the settlement of the soil stratum, while constraining horizontal displacement. The interaction between two wells becomes significant when the affected zone around each well exceeds half the length of the GH dissociation zone. |
| 分类号 | 二类 |
| URL标识 | 查看原文 |
| WOS关键词 | Gas hydrate ; Dissociation ; FLAC3D ; Soil stratum ; Well |
| WOS研究方向 | Engineering ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000386498900011 |
| 资助机构 | This project was supported by the National Natural Science Foundation of China (Grants 11272314, 51239010, 41376078), a joint project of the Chinese National Petroleum Corporation and the Chinese Academy of Sciences (Grant 2015A-4813), and a project of the China Geological Survey (Grant GZH201100311). |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/59693]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 通讯作者 | Zhang, XH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Chen XD,Zhang XH,Lu XB,et al. Numerical study on the deformation of soil stratum and vertical wells with gas hydrate dissociation[J]. ACTA MECHANICA SINICA,2016,32(5):905-914. |
| APA | Chen XD,张旭辉,鲁晓兵,Wei W,Shi, YH,&Zhang, XH .(2016).Numerical study on the deformation of soil stratum and vertical wells with gas hydrate dissociation.ACTA MECHANICA SINICA,32(5),905-914. |
| MLA | Chen XD,et al."Numerical study on the deformation of soil stratum and vertical wells with gas hydrate dissociation".ACTA MECHANICA SINICA 32.5(2016):905-914. |
入库方式： OAI收割
来源：力学研究所
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