| 水平井开采南海神狐海域天然气水合物数值模拟 |
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| 引用本文： | 李刚,李小森,KeniZhang.水平井开采南海神狐海域天然气水合物数值模拟[J].地球物理学报,2011,54(9):2325-2337. |
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| 作者姓名： | 李刚 李小森 KeniZhang |
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| 作者单位： | 1. 中国科学院广州能源研究所,广州 510640;
2. 中国科学院可再生能源与天然气水合物重点实验室,广州 510640;
3. Earth Science Division, Lawrence Berkeley National Laboratory, University of California, 1 Cyclotron Road, Berkeley, CA94720, USA |
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| 基金项目： | 国家自然科学基金项目(20773133, 51004089, 51076155);中国科学院知识创新重要方向项目(KGCX2-YW-3X6);广东省科技计划项目(2009B050600006)资助. |
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| 摘 要： | 2007年5月,南海北部神狐海域的实地钻探结果表明该区域海底存在大量天然气水合物,其作为未来我国潜在的可开发能源的调查和资源评价工作正在展开.本文以SH7站位的钻探、测井数据为基础,建立了实际水合物藏分层地质模型,主要包括上盖层、水合物层和下盖层,其中上下盖层均为可渗透的沉积物.本文利用新型的开采井设计方式,进行了单一...
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| 关 键 词： | 天然气水合物 降压开采 水平井 南海神狐海域 |
| 收稿时间： | 2010-06-24 |
Numerical simulation of gas production from hydrate accumulations using a single horizontal well in Shenhu Area, South China Sea |
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| LI Gang,LI Xiao-Sen,KeniZhang,George J. Moridis.Numerical simulation of gas production from hydrate accumulations using a single horizontal well in Shenhu Area, South China Sea[J].Chinese Journal of Geophysics,2011,54(9):2325-2337. |
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| Authors: | LI Gang LI Xiao-Sen KeniZhang George J Moridis |
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| Institution: | 1. Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China;
2. Key Laboratory of Renewable Energy and Gas Hydrate, Chinese Academy of Sciences, Guangzhou 510640, China;
3. Earth Science Division, Lawrence Berkeley National Laboratory, University of California, 1 Cyclotron Road, Berkeley, CA94720, USA |
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| Abstract: | In 2007, gas hydrate samples were recovered during the scientific expedition conducted by the China Geological Survey in the Shenhu Area. It is expected that Shenhu will become a strategic area of gas hydrate exploitation in China. However, evaluation of the hydrate deposits in the area as a potential energy resource has not been completed. Based on currently available data from site measurements, it is possible to develop preliminarily estimates of the gas production potential by numerical simulation. The hydrate accumulations in Shenhu Area are similar to Class 3 deposits (involving only a HBL), and the overburden and underburden layers are assumed to be permeable. In this study, we estimated gas production from hydrates in the Shenhu Area using the depressurization method with a single horizontal well. The simulation results indicated that the hydrate dissociation occurs on the cylindrical interface around the well, and along the horizontal dissociation interfaces at the top and bottom of the HBL. The gas production rate in the Class 3 hydrate deposit at site SH7 in Shenhu Area is not suitable for commercial production using the depressurization method. |
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| Keywords: | Natural gas hydrate Depressurization Horizontal well Shenhu Area South China Sea |
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