Multiphysical evolution and dynamic competition involved in natural gas hydrate dissociation in porous media and its implications for engineering

doi:10.1016/j.energy.2023.130032

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	Multiphysical evolution and dynamic competition involved in natural gas hydrate dissociation in porous media and its implications for engineering
	Zhang, Haitao; Wu, Bisheng; Luo, Xianqi; Tang, Minggao; Zhang XH(张旭辉); Yang, Liu; Nie, Yuanxun; Zhou, Jiaxing; Zhang, Li; Li, Guangyao
刊名	ENERGY
	2024-02-15
卷号	289 页码:15
关键词	Hydrate dissociation Thermal-hydraulic-mechanical-chemical process Spatial-temporal evolution Dynamic competition Prediction of hydrate dissociation range
ISSN号	0360-5442
DOI	10.1016/j.energy.2023.130032
通讯作者	Wu, Bisheng(wu046@mail.tsinghua.edu.cn) ; Luo, Xianqi(luoxianqi@sjtu.edu.cn) ; Tang, Minggao(myr2008@163.com)
英文摘要	Hydrate (shorted for natural gas hydrate) is one of the most promising future energies, and dissociating hydrate in situ is commonly recognized as the best strategy to realize commercial exploitation. So it is significant to understand the fundamental mechanism in the process of hydrate dissociation involving complicated thermal-hydraulic-mechanical-chemical phenomena. To date, the multiphysical evolution patterns are not revealed by the overall comparison among different phenomena, and we still have little knowledge on the contributions of different influence factors to hydrate dissociation rate. More importantly, the fundamental study has a consid-erable gap to the real engineering. Therefore, in this paper, a fully-coupled thermal-hydraulic-mechanical-chemical model is developed to further analyze the evolution of all phenomena from both global and local perspectives and find the coupled relationships among physical/chemical phenomena from a dynamic compe-tition perspective. Results show that the global spatial distributions of pressure, hydrate saturation and strain show one simple pattern during hydrate dissociation,while those of temperature and hydrate dissociation rate manifest four and three complex patterns respectively. The effective hydrate reaction specific area, reaction coefficient and pressure difference play different roles in the domination of the trend and value of hydrate dissociation rate. Additionally, two examples are given to demonstrate the implications of the fundamental mechanism to the engineering. A negative-power-law relation is found between the finish time of hydrate dissociation and the heat transfer coefficient of outside heat source (geothermal heat in real engineering). A good linear relation between hydrate dissociation front and pressure transfer front is found, which provides a possible easy way to predict the range of dissociated hydrate by pressure in the real engineering.
分类号	一类
资助项目	National Natural Science Foundation of China[52371279] ; Program for International Exchange and Cooperation in Education by the Ministry of Education of the People's Republic of China[57220500123] ; Opening Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology)[SKLGP2022K003] ; Opening Fund of Xi'an Key Laboratory of Geotechnical and Underground Engineering (Xi'an University of Science and Technology)[XKLGUEKF21-01] ; Opening Fund of Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education (Beijing University of Technology)
WOS关键词	THERMAL-CONDUCTIVITY ; BEARING SEDIMENTS ; METHANE ; SANDSTONE ; HEAT ; PERMEABILITY ; MODEL ; WATER ; SAND
WOS研究方向	Thermodynamics ; Energy & Fuels
语种	英语
WOS记录号	WOS:001144933500001
资助机构	National Natural Science Foundation of China ; Program for International Exchange and Cooperation in Education by the Ministry of Education of the People's Republic of China ; Opening Fund of State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (Chengdu University of Technology) ; Opening Fund of Xi'an Key Laboratory of Geotechnical and Underground Engineering (Xi'an University of Science and Technology) ; Opening Fund of Key Laboratory of Urban Security and Disaster Engineering of Ministry of Education (Beijing University of Technology)
其他责任者	Wu, Bisheng ; Luo, Xianqi ; Tang, Minggao
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/94130]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
推荐引用方式 GB/T 7714	Zhang, Haitao,Wu, Bisheng,Luo, Xianqi,et al. Multiphysical evolution and dynamic competition involved in natural gas hydrate dissociation in porous media and its implications for engineering[J]. ENERGY,2024,289:15.
APA	Zhang, Haitao.,Wu, Bisheng.,Luo, Xianqi.,Tang, Minggao.,张旭辉.,...&Li, Guangyao.(2024).Multiphysical evolution and dynamic competition involved in natural gas hydrate dissociation in porous media and its implications for engineering.ENERGY,289,15.
MLA	Zhang, Haitao,et al."Multiphysical evolution and dynamic competition involved in natural gas hydrate dissociation in porous media and its implications for engineering".ENERGY 289(2024):15.