IMECH-IR  > 流固耦合系统力学重点实验室
Gas outburst with sediments because of tetrahydrofuran hydrate dissociation
Zhang XH(张旭辉); Lu XB(鲁晓兵); Xiao M; Zhang, XH (reprint author), Chinese Acad Sci, Key Lab Fluid Solid Coupling Syst Mech, Inst Mech, Beijing 100190, Peoples R China.
Source PublicationINTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS
2015-10-10
Volume39Issue:17Pages:1884-1897
ISSN0363-9061
AbstractMethane hydrate (MH) is a new energy resource in the 21(st) century. But the dissociation of MH from sediments during the MH exploration or oil/gas exploration under a hydrate layer accompanied by the softening of soils and formation of excess pore gas pressure may lead to ground failures and environmental disasters. In this study, experiments on modeling the weakening and failure of the sediment by heat-induced dissociation of tetrahydrofuran (THF) hydrate were presented. The failure mode of gas outburst was observed. Gas outbursts is a process where gas and soils in hydrate-dissociation zone burst out after the continuous skeleton of over-layer is fractured during the expansion of the dissociation zone and the formation of gas zone and excess pore gas pressure. An analytical method is presented by decoupling heat transfer and soil deformation. The geometrical and mechanical similarities for gas outburst are obtained. An empirical criterion for the occurrence of outburst is proposed using the theory of thermal conduction, rigid plastic mechanics, and the experimental data. Copyright (c) 2015 John Wiley & Sons, Ltd.
KeywordHydrate-bearing Sediment Thf Hydrate Excess Pore Gas Pressure Hydrate Dissociation Front Outburst
DOI10.1002/nag.2377
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000362891700002
WOS KeywordBEARING SEDIMENTS ; STABILITY ; NORWAY ; SLOPE ; SLIDE
WOS Research AreaEngineering ; Materials Science ; Mechanics
WOS SubjectEngineering, Geological ; Materials Science, Multidisciplinary ; Mechanics
Funding OrganizationContract/grant sponsor: National Natural Science Foundation of China ; contract/grant numbers: 11102209, 51239010
DepartmentLMFS海洋土力学(LHO)
Classification二类/Q2
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58391
Collection流固耦合系统力学重点实验室
Corresponding AuthorZhang, XH (reprint author), Chinese Acad Sci, Key Lab Fluid Solid Coupling Syst Mech, Inst Mech, Beijing 100190, Peoples R China.
Recommended Citation
GB/T 7714
Zhang XH,Lu XB,Xiao M,et al. Gas outburst with sediments because of tetrahydrofuran hydrate dissociation[J]. INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,2015,39(17):1884-1897.
APA 张旭辉,鲁晓兵,Xiao M,&Zhang, XH .(2015).Gas outburst with sediments because of tetrahydrofuran hydrate dissociation.INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS,39(17),1884-1897.
MLA 张旭辉,et al."Gas outburst with sediments because of tetrahydrofuran hydrate dissociation".INTERNATIONAL JOURNAL FOR NUMERICAL AND ANALYTICAL METHODS IN GEOMECHANICS 39.17(2015):1884-1897.
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