Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Numerical study of gas production from fine-grained hydrate reservoirs using a multilateral horizontal well system | |
Mao, Peixiao1,2,3,4; Wan, Yizhao1,3; Sun, Jiaxin4; Li, Yanlong1,3; Hu, Gaowei1,3; Ning, Fulong3,4; Wu, Nengyou1,3
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| 2021-11-01 | |
| Source Publication | APPLIED ENERGY
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| ISSN | 0306-2619 |
| Volume | 301Pages:17 |
| Corresponding Author | Ning, Fulong(nflzx@cug.edu.cn) ; Wu, Nengyou(wuny@ms.giec.ac.cn) |
| Abstract | Natural gas hydrate is prevalent in ultralow-permeability fine-grained sediments with substantial reserves. However, effective and safe gas production from fine-grained hydrate reservoirs remains a global challenge. Here, a multilateral horizontal well system is innovatively employed to improve production efficiency in finegrained hydrate reservoirs. A three-dimensional (3D) numerical model of a real gas hydrate reservoir is constructed, and the influences of well configuration, deployment location, depressurization pressure, and reservoir properties on production are systemically and quantitatively evaluated. The spatial distributions of the physical properties of the 3D reservoirs during gas production are clearly revealed. The results indicate that the production efficiency of multilateral horizontal wells improves with increasing branch number and length, particularly when the ratio of branch length to reservoir width exceeds 0.15. Branch interference and perforation length positively affect production enhancement when multilateral horizontal wells are deployed in hydrate reservoirs with specific ultralow permeabilities; these discoveries are revealed for the first time. Multilateral horizontal wells with helically and vertically distributed equal-length branches yield high production efficiencies, and their optimal locations are in the lower sections of the reservoirs, particularly within high-isotropicpermeability reservoirs. Moreover, uniformly low depressurization pressure in helically distributed branches facilitates gas extraction; gas recovery efficiency increases by 8% when production pressure decreases by 1 MPa. This study suggests that the use of a helical multilateral well system is a promising strategy for achieving commercial gas production from fine-grained hydrate reservoirs. |
| Keyword | Natural gas hydrates Multilateral horizontal well system Fine-grained hydrate reservoir Permeability Production efficiency Depressurization |
| DOI | 10.1016/j.apenergy.2021.117450 |
| WOS Keyword | PEARL RIVER CANYON ; SOUTH CHINA SEA ; METHANE-HYDRATE ; PRODUCTION BEHAVIOR ; DEPRESSURIZATION ; DISSOCIATION ; SIMULATION ; RECOVERY ; SITE ; ACCUMULATION |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key Research and Devel-opment Program of China[2017YFC0307600] ; National Natural Science Foundation of China[42076217] ; National Natural Science Foundation of China[41906187] ; National Natural Science Foundation of China[51904280] ; Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Con-version, Chinese Academy of Sciences[E029kf1301] ; Shandong Provincial Natural Science Foundation, China[ZR2019BD058] ; Qingdao National Laboratory for Marine Science and Technology Open Fund[QNLM2016ORP0203] ; Qingdao National Laboratory for Marine Science and Technology Open Fund[QNLM2016ORP0207] ; Taishan Scholar Special Experts Project[ts201712079] ; China Geological Survey Project[DD20190221] ; China Geological Survey Project[DD20190231] |
| WOS Research Area | Energy & Fuels ; Engineering |
| Funding Organization | National Key Research and Devel-opment Program of China ; National Natural Science Foundation of China ; Key Laboratory of Gas Hydrate, Guangzhou Institute of Energy Con-version, Chinese Academy of Sciences ; Shandong Provincial Natural Science Foundation, China ; Qingdao National Laboratory for Marine Science and Technology Open Fund ; Taishan Scholar Special Experts Project ; China Geological Survey Project |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000692518300006 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/33873 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Ning, Fulong; Wu, Nengyou |
| Affiliation | 1.Minist Nat Resources, Key Lab Gas Hydrate, Qingdao Inst Marine Geol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Gas Hydrate, Guangzhou 510640, Peoples R China 3.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Mineral Resources, Qingdao 266071, Peoples R China 4.China Univ Geosci, Fac Engn, Wuhan 430074, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Mao, Peixiao,Wan, Yizhao,Sun, Jiaxin,et al. Numerical study of gas production from fine-grained hydrate reservoirs using a multilateral horizontal well system[J]. APPLIED ENERGY,2021,301:17. |
| APA | Mao, Peixiao.,Wan, Yizhao.,Sun, Jiaxin.,Li, Yanlong.,Hu, Gaowei.,...&Wu, Nengyou.(2021).Numerical study of gas production from fine-grained hydrate reservoirs using a multilateral horizontal well system.APPLIED ENERGY,301,17. |
| MLA | Mao, Peixiao,et al."Numerical study of gas production from fine-grained hydrate reservoirs using a multilateral horizontal well system".APPLIED ENERGY 301(2021):17. |
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