Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation
Natural gas hydrate is considered as a potential clean energy resource. Therefore, technology development for commercial gas recovery from natural gas hydrate is attracting extensive attention all over the world. The influence of well pattern on gas recovery from methane hydrate reservoir using depr...
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/23499 2023-05-15T17:11:57+02:00 Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation Wang, Yi Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu 2018-06-01 http://ir.giec.ac.cn/handle/344007/23498 http://ir.giec.ac.cn/handle/344007/23499 https://doi.org/10.1016/j.energy.2018.03.126 英语 eng PERGAMON-ELSEVIER SCIENCE LTD ENERGY http://ir.giec.ac.cn/handle/344007/23498 http://ir.giec.ac.cn/handle/344007/23499 doi:10.1016/j.energy.2018.03.126 Hydrate decomposition Well pattern Experiment Depressurization Heat stimulation EQUILIBRIUM DISSOCIATION CONDITIONS DUAL HORIZONTAL WELLS THERMAL-STIMULATION POROUS-MEDIA PRODUCTION BEHAVIORS BEARING SEDIMENTS SANDY RESERVOIR HEAT-TRANSFER PUFF METHOD Thermodynamics Energy & Fuels 期刊论文 2018 ftchacadsciegiec https://doi.org/10.1016/j.energy.2018.03.126 2022-09-23T14:14:51Z Natural gas hydrate is considered as a potential clean energy resource. Therefore, technology development for commercial gas recovery from natural gas hydrate is attracting extensive attention all over the world. The influence of well pattern on gas recovery from methane hydrate reservoir using depressurization combined with heat stimulation (D&H) method is firstly investigated in a large scale experimental set-up (PHS). The well patterns selected for hydrate decomposition are five-spot vertical wells (5 V), dual horizontal wells (2H), and trigonal horizontal wells (3H) in the experiments. The influences of well patterns on the production behaviors, the heat transfer characteristics, and the production efficiency are studied by the experiments. The experimental results indicate that the 5 V well pattern leads to the highest gas production rate (R-g), hydrate dissociation rate (R-d), and gas-water ratio, which is the optimal well pattern under the experimental condition in this work. However, by using the 5 V well pattern, the heat transfer rate rapidly decreases with the increase of the distance from hydrate dissociation interface to the injection well, which leads to the apparently decrease of the Rd in the later period of the heat stimulation stage. Because the decrease rates of the Rg and Rd by the 5 V well pattern is faster than those by the 3H and 2H well patterns, it can be predicted that if the well spacing increases, the 5 V well pattern may not be the optimal well pattern for gas recovery. In addition, the Rd using the 3H well pattern is higher than that by the 2H well pattern, because the decentralized heat injection in the 3H well pattern can enhance the heat convection in the sediment, further enhance the heat efficiency. (C) 2018 Elsevier Ltd. All rights reserved. Report Methane hydrate Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Energy 152 34 45 |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Hydrate decomposition Well pattern Experiment Depressurization Heat stimulation EQUILIBRIUM DISSOCIATION CONDITIONS DUAL HORIZONTAL WELLS THERMAL-STIMULATION POROUS-MEDIA PRODUCTION BEHAVIORS BEARING SEDIMENTS SANDY RESERVOIR HEAT-TRANSFER PUFF METHOD Thermodynamics Energy & Fuels |
spellingShingle |
Hydrate decomposition Well pattern Experiment Depressurization Heat stimulation EQUILIBRIUM DISSOCIATION CONDITIONS DUAL HORIZONTAL WELLS THERMAL-STIMULATION POROUS-MEDIA PRODUCTION BEHAVIORS BEARING SEDIMENTS SANDY RESERVOIR HEAT-TRANSFER PUFF METHOD Thermodynamics Energy & Fuels Wang, Yi Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
topic_facet |
Hydrate decomposition Well pattern Experiment Depressurization Heat stimulation EQUILIBRIUM DISSOCIATION CONDITIONS DUAL HORIZONTAL WELLS THERMAL-STIMULATION POROUS-MEDIA PRODUCTION BEHAVIORS BEARING SEDIMENTS SANDY RESERVOIR HEAT-TRANSFER PUFF METHOD Thermodynamics Energy & Fuels |
description |
Natural gas hydrate is considered as a potential clean energy resource. Therefore, technology development for commercial gas recovery from natural gas hydrate is attracting extensive attention all over the world. The influence of well pattern on gas recovery from methane hydrate reservoir using depressurization combined with heat stimulation (D&H) method is firstly investigated in a large scale experimental set-up (PHS). The well patterns selected for hydrate decomposition are five-spot vertical wells (5 V), dual horizontal wells (2H), and trigonal horizontal wells (3H) in the experiments. The influences of well patterns on the production behaviors, the heat transfer characteristics, and the production efficiency are studied by the experiments. The experimental results indicate that the 5 V well pattern leads to the highest gas production rate (R-g), hydrate dissociation rate (R-d), and gas-water ratio, which is the optimal well pattern under the experimental condition in this work. However, by using the 5 V well pattern, the heat transfer rate rapidly decreases with the increase of the distance from hydrate dissociation interface to the injection well, which leads to the apparently decrease of the Rd in the later period of the heat stimulation stage. Because the decrease rates of the Rg and Rd by the 5 V well pattern is faster than those by the 3H and 2H well patterns, it can be predicted that if the well spacing increases, the 5 V well pattern may not be the optimal well pattern for gas recovery. In addition, the Rd using the 3H well pattern is higher than that by the 2H well pattern, because the decentralized heat injection in the 3H well pattern can enhance the heat convection in the sediment, further enhance the heat efficiency. (C) 2018 Elsevier Ltd. All rights reserved. |
format |
Report |
author |
Wang, Yi Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu |
author_facet |
Wang, Yi Feng, Jing-Chun Li, Xiao-Sen Zhang, Yu |
author_sort |
Wang, Yi |
title |
Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
title_short |
Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
title_full |
Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
title_fullStr |
Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
title_full_unstemmed |
Influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
title_sort |
influence of well pattern on gas recovery from methane hydrate reservoir by large scale experimental investigation |
publisher |
PERGAMON-ELSEVIER SCIENCE LTD |
publishDate |
2018 |
url |
http://ir.giec.ac.cn/handle/344007/23498 http://ir.giec.ac.cn/handle/344007/23499 https://doi.org/10.1016/j.energy.2018.03.126 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_relation |
ENERGY http://ir.giec.ac.cn/handle/344007/23498 http://ir.giec.ac.cn/handle/344007/23499 doi:10.1016/j.energy.2018.03.126 |
op_doi |
https://doi.org/10.1016/j.energy.2018.03.126 |
container_title |
Energy |
container_volume |
152 |
container_start_page |
34 |
op_container_end_page |
45 |
_version_ |
1766068702767218688 |