Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea
Considerable hydrate deposits are proved to exist by drilling in-situ in the Shenhu Area of South China Sea in China, and the survey and evaluation as a potential energy resource has been carried out. In May, 2007, gas hydrate samples have been collected in the Shenhu Area, which will become a strat...
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ftchacadsciegiec:oai:ir.giec.ac.cn:344007/10315 2023-05-15T17:09:30+02:00 Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea Li Gang Li Xiaosen Chen Qi Chen Zhaoyang 2010-06-14 http://ir.giec.ac.cn/handle/344007/10315 英语 eng ACTA CHIMICA SINICA http://ir.giec.ac.cn/handle/344007/10315 Natural Gas Hydrate Depressurization Thermal Stimulation Tough Plus Hydrate Shenhu Science & Technology Physical Sciences Chemistry HEAT-FLOW ACCRETIONARY PRISM FLUID EXPULSION MACKENZIE DELTA MALLIK SITE ENERGY SEDIMENT RESOURCE CANADA Multidisciplinary Article 期刊论文 2010 ftchacadsciegiec 2022-09-23T14:12:20Z Considerable hydrate deposits are proved to exist by drilling in-situ in the Shenhu Area of South China Sea in China, and the survey and evaluation as a potential energy resource has been carried out. In May, 2007, gas hydrate samples have been collected in the Shenhu Area, which will become a strategical area of gas hydrate exploitation in China. TOUGH HYDRATE is employed to simulate the hydrate dissociation and water/gas production process with the single depressurization and the depressurized+thermal stimulation, based on the geological data of the SH2, SH3 and SH7 site in the Shenhu Area in South China Sea. The simulation results indicate that the hydrate dissociate at the area surrounding the production well, the boundary area of the bottom and top of the hydrate bearing layer (HBL). There is an inversion of the geothermal gradient at the interface between the overburden (OB) and the HBL because of hydrate dissociation-induced cooling in the HBL. Practically impermeable secondary hydrate barrier evolves around the wellbore, which sealed the hydrate body and prevented communication with the evolving upper dissociating interface at the end of the depressurization process. With the hot water injected from the top of the HBL, the secondary hydrate can be eliminated during the depressurization+thermal stimulation process. Article in Journal/Newspaper Mackenzie Delta Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR Canada |
institution |
Open Polar |
collection |
Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences: GIEC OpenIR |
op_collection_id |
ftchacadsciegiec |
language |
English |
topic |
Natural Gas Hydrate Depressurization Thermal Stimulation Tough Plus Hydrate Shenhu Science & Technology Physical Sciences Chemistry HEAT-FLOW ACCRETIONARY PRISM FLUID EXPULSION MACKENZIE DELTA MALLIK SITE ENERGY SEDIMENT RESOURCE CANADA Multidisciplinary |
spellingShingle |
Natural Gas Hydrate Depressurization Thermal Stimulation Tough Plus Hydrate Shenhu Science & Technology Physical Sciences Chemistry HEAT-FLOW ACCRETIONARY PRISM FLUID EXPULSION MACKENZIE DELTA MALLIK SITE ENERGY SEDIMENT RESOURCE CANADA Multidisciplinary Li Gang Li Xiaosen Chen Qi Chen Zhaoyang Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea |
topic_facet |
Natural Gas Hydrate Depressurization Thermal Stimulation Tough Plus Hydrate Shenhu Science & Technology Physical Sciences Chemistry HEAT-FLOW ACCRETIONARY PRISM FLUID EXPULSION MACKENZIE DELTA MALLIK SITE ENERGY SEDIMENT RESOURCE CANADA Multidisciplinary |
description |
Considerable hydrate deposits are proved to exist by drilling in-situ in the Shenhu Area of South China Sea in China, and the survey and evaluation as a potential energy resource has been carried out. In May, 2007, gas hydrate samples have been collected in the Shenhu Area, which will become a strategical area of gas hydrate exploitation in China. TOUGH HYDRATE is employed to simulate the hydrate dissociation and water/gas production process with the single depressurization and the depressurized+thermal stimulation, based on the geological data of the SH2, SH3 and SH7 site in the Shenhu Area in South China Sea. The simulation results indicate that the hydrate dissociate at the area surrounding the production well, the boundary area of the bottom and top of the hydrate bearing layer (HBL). There is an inversion of the geothermal gradient at the interface between the overburden (OB) and the HBL because of hydrate dissociation-induced cooling in the HBL. Practically impermeable secondary hydrate barrier evolves around the wellbore, which sealed the hydrate body and prevented communication with the evolving upper dissociating interface at the end of the depressurization process. With the hot water injected from the top of the HBL, the secondary hydrate can be eliminated during the depressurization+thermal stimulation process. |
format |
Article in Journal/Newspaper |
author |
Li Gang Li Xiaosen Chen Qi Chen Zhaoyang |
author_facet |
Li Gang Li Xiaosen Chen Qi Chen Zhaoyang |
author_sort |
Li Gang |
title |
Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea |
title_short |
Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea |
title_full |
Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea |
title_fullStr |
Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea |
title_full_unstemmed |
Numerical Simulation of Gas Production from Gas Hydrate Zone in Shenhu Area, South China Sea |
title_sort |
numerical simulation of gas production from gas hydrate zone in shenhu area, south china sea |
publishDate |
2010 |
url |
http://ir.giec.ac.cn/handle/344007/10315 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Mackenzie Delta |
genre_facet |
Mackenzie Delta |
op_relation |
ACTA CHIMICA SINICA http://ir.giec.ac.cn/handle/344007/10315 |
_version_ |
1766065618076827648 |