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Analyzing the applicability of in situ heating methods in the gas production from natural gas hydrate-bearing sediment with field scale numerical study
Li, Lijia1,2,3,4,5; Li, Xiaosen1,2,3,4,5; Wang, Yi2; Luo, Yongjiang1; Li, Bo1
2020-11-01
Source PublicationENERGY REPORTS
ISSN2352-4847
Volume6Pages:3291-3302
Corresponding AuthorLi, Xiaosen(lixs@ms.giec.ac.cn)
AbstractFor natural gas hydrate (NGH) exploitation, the in-situ electrical heating has been proved as a promising production method in laboratory experimental scale. But the results in this scale are difficult to reliably reflect field trials due to limitations in the size of the reactor. So, by TOUGH+HYDRATE software, this paper stimulates hydrate exploitation in field scale by in situ electrical heating. In addition, depressurization is applied as a comparison. Based on the analysis of several parameters like reservoir temperature and hydrate distribution, results show that although a larger heating power can result in a faster move of the decomposition front, the fast free gas production takes a large amount of sensible heat out of the reservoir. Also, the electrical heating effect is limited by the heat conductivity of formation in the field scale, so the heat promoting distance of the heating method is less than 10 m after five years production even with 1000 W/m of electrical heating power. A large amount of heat loss and the shortage of heating injection make the energy efficiency of it decreased significantly with the production time. So, large heating power cannot always remain fast gas and water production rates. Furthermore, the higher heating power does not mean a better exploitation effect. Thus, it is vital to choose a reasonable heating power in the field exploitation. Under the NGH reservoir and production parameters set in this paper, the most optimal electrical heating power should be 500 W/m with comprehensive consideration of gas production rate, NGH front promoting velocity and energy efficiency. (C) 2020 The Authors. Published by Elsevier Ltd.
KeywordField exploitation simulation Thermal stimulation Depressurization In situ electrical heating
DOI10.1016/j.egyr.2020.11.208
WOS KeywordMETHANE-HYDRATE ; NANKAI TROUGH ; SIMULATION ; DISSOCIATION ; DEPRESSURIZATION ; RECOVERY ; RESERVOIR ; STIMULATION ; SOLVENT ; STORAGE
Indexed BySCI
Language英语
Funding ProjectKey Program of National Natural Science Foundation of China[51736009] ; National Natural Science Foundation of China[51676190] ; National Natural Science Foundation of China[51806251] ; National Natural Science Foundation of China[51904041] ; Guangdong Special Support Program-Local innovation and entrepreneurship team project[2019BT02L278] ; Special Project for Marine Economy Development of Guangdong Province[GDME-2018D002] ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences[YZ201619] ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences[QYZDJ-SSW-JSC033] ; Youth Science and Technology Innovation Talent of Guangdong[2016TQ03Z862] ; Youth Innovation Promotion Association CAS[2018382]
WOS Research AreaEnergy & Fuels
Funding OrganizationKey Program of National Natural Science Foundation of China ; National Natural Science Foundation of China ; Guangdong Special Support Program-Local innovation and entrepreneurship team project ; Special Project for Marine Economy Development of Guangdong Province ; Science and Technology Apparatus Development Program of the Chinese Academy of Sciences ; Frontier Sciences Key Research Program of the Chinese Academy of Sciences ; Youth Science and Technology Innovation Talent of Guangdong ; Youth Innovation Promotion Association CAS
WOS SubjectEnergy & Fuels
WOS IDWOS:000602734500007
PublisherELSEVIER
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/32386
Collection中国科学院广州能源研究所
Corresponding AuthorLi, Xiaosen
Affiliation1.Chongqing Univ, Coll Resources & Safety Sci, State Key Lab Coal Mine Disaster Dynam & Control, Chongqing 400044, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China
4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
5.Chinese Acad Sci, Guangzhou Ctr Gas Hydrate Res, Guangzhou 510640, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li, Lijia,Li, Xiaosen,Wang, Yi,et al. Analyzing the applicability of in situ heating methods in the gas production from natural gas hydrate-bearing sediment with field scale numerical study[J]. ENERGY REPORTS,2020,6:3291-3302.
APA Li, Lijia,Li, Xiaosen,Wang, Yi,Luo, Yongjiang,&Li, Bo.(2020).Analyzing the applicability of in situ heating methods in the gas production from natural gas hydrate-bearing sediment with field scale numerical study.ENERGY REPORTS,6,3291-3302.
MLA Li, Lijia,et al."Analyzing the applicability of in situ heating methods in the gas production from natural gas hydrate-bearing sediment with field scale numerical study".ENERGY REPORTS 6(2020):3291-3302.
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