| 天然气水合物分解引起多孔介质变形流固耦合研究 | |
| Alternative Title | Numerical Study on Porous Media′s Deformation Due to Natural Gas Hydrate Dissociation Considering Fluid-Solid Coupling |
刘乐乐 ; 鲁晓兵; 张旭辉
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| Source Publication | 天然气地球科学
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| 2013-10 | |
| Volume | 24Issue:5Pages:1079-1085 |
| ISSN | 1672-1926 |
| Abstract | 水合物地层变形是天然气水合物开采安全性评价的关键参数。提出了考虑传热、水合物分解相变、多相渗流和地层变形4个物理效应的一维多孔介质中水合物降压分解数学模型,在验证该模型适用性之后进行了粉细砂多孔介质变形敏感性分析。基于基本假设可以得到以下结论:出口压强是影响多孔介质变形的主要因素,出口压强越小,多孔介质最终变形越大,且完成变形所需时间越长。环境温度和多孔介质绝对渗透率对多孔介质最终变形没有影响,但会改变多孔介质完成变形所需时间的长度。 |
| Other Abstract | A one-dimensional model for analyzing the porous media′s deformation during and after dissociation of natural gas hydrate (NGH) was developed in which conductive-convective heat transfer,two-phase fluid flow,intrinsic kinetics of NGH dissociation and deformation of solid skeleton were all included.After the certification of the numerical model,a parameter sensitivity analysis was developed.Based on the analysis,main conclusions are as follows: the deformation rate and the final deformation both decrease with the increase of the outlet pressure;the increase of the absolute permeability or the environmental temperature leads to the increase of the deformation rate,but makes no difference to the final deformation. |
| Keyword | 天然气水合物 多孔介质变形 流固耦合 数值模拟 |
| Subject Area | 流固耦合作用 |
| URL | 查看原文 |
| Indexed By | CSCD |
| Language | 中文 |
| Funding Organization | 国家自然科学基金项目"水合物热分解引起地层分层破坏实验室研究"(编号:11102209); 国家自然科学基金项目"冻土区天然气水合物注热开采方法研究"(编号:11272314)联合资助 |
| CSCD ID | CSCD:4972272 |
| Department | LMFS海洋土力学(LHO) |
| Citation statistics |
Cited Times:3[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/48061 |
| Collection | 流固耦合系统力学重点实验室 |
| Corresponding Author | 刘乐乐 |
| Recommended Citation GB/T 7714 | 刘乐乐,鲁晓兵,张旭辉. 天然气水合物分解引起多孔介质变形流固耦合研究[J]. 天然气地球科学,2013,24,5,:1079-1085. |
| APA | 刘乐乐,鲁晓兵,&张旭辉.(2013).天然气水合物分解引起多孔介质变形流固耦合研究.天然气地球科学,24(5),1079-1085. |
| MLA | 刘乐乐,et al."天然气水合物分解引起多孔介质变形流固耦合研究".天然气地球科学 24.5(2013):1079-1085. |
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| IMCAS-J2013-358.pdf（3601KB） | 开放获取 | -- | View Download | |||
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