IMECH-IR  > 流固耦合系统力学重点实验室
Numerical study on the deformation of soil stratum and vertical wells with gas hydrate dissociation
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.
Source PublicationACTA MECHANICA SINICA
2016
Volume32Issue:5Pages:905-914
ISSN0567-7718
AbstractGas 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.
KeywordGas Hydrate Dissociation Flac3d Soil Stratum Well
DOI10.1007/s10409-016-0589-8
URL查看原文
Indexed BySCI ; EI ; CSCD
Language英语
WOS IDWOS:000386498900011
WOS KeywordGas hydrate ; Dissociation ; FLAC3D ; Soil stratum ; Well
WOS Research AreaEngineering ; Mechanics
WOS SubjectEngineering, Mechanical ; Mechanics
Funding OrganizationThis 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).
DepartmentLMFS海洋土力学(LHO)
Classification二类
RankingTrue
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/59693
Collection流固耦合系统力学重点实验室
Corresponding AuthorZhang, XH (reprint author), Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
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.
Files in This Item: Download All
File Name/Size DocType Version Access License
a2016-015.pdf(2268KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen XD]'s Articles
[张旭辉]'s Articles
[鲁晓兵]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen XD]'s Articles
[张旭辉]'s Articles
[鲁晓兵]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen XD]'s Articles
[张旭辉]'s Articles
[鲁晓兵]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: a2016-015.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.