Experimental Investigation on the Production Behaviors of Methane Hydrate in Sandy Sediments by Different Depressurization Strategies

doi:10.1002/ente.201800453

	Experimental Investigation on the Production Behaviors of Methane Hydrate in Sandy Sediments by Different Depressurization Strategies
	Lv, Tao 1,2,4,5; Li, Xiaosen 1,2,3,4; Chen, Zhaoyang 1,2,3,4; Sun, Duo 6; Zhang, Yu 1,2,3,4; Yan, Kefeng 1,2,3,4; Cai, Jing 1,2,4,5
刊名	ENERGY TECHNOLOGY
	2018-12-01
卷号	6 期号:12 页码:2501-2511
关键词	methane hydrate sediments depressurization production hydrate dissociation
ISSN号	2194-4288
DOI	10.1002/ente.201800453
通讯作者	Chen, Zhaoyang(chenzy@ms.giec.ac.cn)
英文摘要	The depressurization method is one of the most promising methods for the exploitation of hydrate reservoirs and has been conducted in several field tests. In this work, the production behaviors of methane hydrate in sand sediments by different depressurization strategies were comparatively investigated using a cubic hydrate simulator (CHS) with a capacity of 5.832 L. The experimental conditions are based on the hydrate reservoirs parameters of the South China Sea. The results indicate that the hydrate dissociation rate is related to production pressure and heat conduction between the sediments and the surroundings. Some hydrate form again at the beginning of depressurization and the progress of hydrate dissociation during stable depressurization stage is basically along with the P-T curve. The cumulative amounts of gas production are almost the same, affirming it depends on the final depressurization amplitude, and less water produced when a short shut-in period is conducted before hydrate dissociation. Compared to single-step depressurization strategy, the multistep depressurization possesses a more well-distributed gas production, and the sensible heat of sediments contributes less to hydrate dissociation. Despite the production period is longer, its temperature over the whole production process is higher, which has the potential to reduce the secondary hydrate formation and the damage of wellbore and sediments effectively in actual hydrate production
资助项目	National Natural Science Foundation of China[51576202] ; National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[51476174] ; National Key R&D Program of China[2016YFC0304002] ; International S&T Cooperation Program of China[2015DFA61790] ; CAS Science and Technology Apparatus Development Program[YZ201619]
WOS关键词	GAS-HYDRATE ; ENERGY RECOVERY ; POROUS SEDIMENT ; DISSOCIATION ; CORES ; PERMEABILITY ; STIMULATION ; GENERATION ; SIMULATOR ; RESOURCE
WOS研究方向	Energy & Fuels
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000455586800023
资助机构	National Natural Science Foundation of China ; National Key R&D Program of China ; International S&T Cooperation Program of China ; CAS Science and Technology Apparatus Development Program
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/24625]
专题	中国科学院广州能源研究所
通讯作者	Chen, Zhaoyang
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China 2.CAS Key Lab Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Guangdong, Peoples R China 4.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Guangdong, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.Univ British Columbia, Dept Chem & Biol Engn, Vancouver, BC V6T 1Z4, Canada
推荐引用方式 GB/T 7714	Lv, Tao,Li, Xiaosen,Chen, Zhaoyang,et al. Experimental Investigation on the Production Behaviors of Methane Hydrate in Sandy Sediments by Different Depressurization Strategies[J]. ENERGY TECHNOLOGY,2018,6(12):2501-2511.
APA	Lv, Tao.,Li, Xiaosen.,Chen, Zhaoyang.,Sun, Duo.,Zhang, Yu.,...&Cai, Jing.(2018).Experimental Investigation on the Production Behaviors of Methane Hydrate in Sandy Sediments by Different Depressurization Strategies.ENERGY TECHNOLOGY,6(12),2501-2511.
MLA	Lv, Tao,et al."Experimental Investigation on the Production Behaviors of Methane Hydrate in Sandy Sediments by Different Depressurization Strategies".ENERGY TECHNOLOGY 6.12(2018):2501-2511.