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含天然气水合物沉积介质力学本构关系及数值模拟研究现状
Alternative TitleStatus of Constitutive Relationship and Numerical Simulation of Gas Hydrate Deposited Medium
张峰1,2; 刘丽华1; 吴能友3,4; 卢静生1; 吴起1,2
2017-12
Source Publication新能源进展
ISSN2095-560X
Volume5Issue:6Pages:443-449
Abstract天然气水合物是一种储量巨大的潜在能源,主要蕴藏在海域或陆地冻土带的多孔介质中.研究含天然气水合物沉积介质的力学性质是评价含水合物沉积介质稳定性以及水合物开采安全的基础.本文系统总结了含水合物沉积介质力学本构模型和力学数值模拟研究现状,指出邓肯–张模型和临界状态模型的适用范围及局限性,认为建立参数物理意义明确且能相对全面地描述含水合物沉积介质力学性质的力学本构方程还有很多挑战.针对含水合物沉积介质力学性质研究,开展多物理场耦合数值模拟研究是主要的研究手段.目前,TOUGH+HYDRATE和FLAC3D的耦合以及颗粒流(PFC)应用较多,考虑水合物在地层的实际分解过程,应该对沉积介质力学性质在水合物连续分解过程中的变化规律及与其他物理场的耦合作用进行深入研究.
Other AbstractNatural gas hydrates occur worldwide and have been a hot topic due to its energy and geohazard potential. Gas hydrates-bearing sediments (HBS) are natural soils that contain natural gas hydrate. The mechanical response of HBS is crucial for predicting the stability of sub-marine sediments and the gas production from natural gas hydrate reservoir. In this paper, the mechanical constitutive models and the numerical simulations of HBS are summarized. The Duncan-Chang models are simple but cannot describe the strain softening stage, the critical state models are complex. Currently, the numerical simulations of HBS require a simple and accurate model. The multi-phases coupling numerical simulation can study the influence of various parameters on the mechanical properties of the gas hydrate bearing sediments. The changes in the mechanical properties of sedimentary media during decomposition process need to be studied in depth.
Keyword天然气水合物 力学性质 本构模型 数值模拟 natural gas hydrate mechanical properties mechanical constitutive model numerical simulation
DOI10.3969/j.issn.2095-560X.2017.06.005
Language中文
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16581
Collection中国科学院广州能源研究所
Corresponding Author刘丽华
Affiliation1.中国科学院广州能源研究所,中国科学院天然气水合物重点实验室,广州510640;
2.中国科学院大学,北京100049;
3.青岛海洋地质研究所,国土资源部天然气水合物重点实验室,山东青岛266071;
4.海洋国家实验室海洋矿产资源评价与探测技术功能实验室,山东青岛266071
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
张峰,刘丽华,吴能友,等. 含天然气水合物沉积介质力学本构关系及数值模拟研究现状[J]. 新能源进展,2017,5(6):443-449.
APA 张峰,刘丽华,吴能友,卢静生,&吴起.(2017).含天然气水合物沉积介质力学本构关系及数值模拟研究现状.新能源进展,5(6),443-449.
MLA 张峰,et al."含天然气水合物沉积介质力学本构关系及数值模拟研究现状".新能源进展 5.6(2017):443-449.
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