储气罐中天然气水合物生成的温度特性研究
Study on Temperature Variation of Natural Gas Hydrate Formation in Gas Tank
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- 引用格式:
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杨波,李小森,李茂东,杜南胜,林金梅,汪文锋.储气罐中天然气水合物生成的温度特性研究[J].天然气与石油,2014,32(5):0.doi:
Yang Bo, Li Xiaosen, Li Maodong, Du Nansheng, Lin Jinmei,Wang Wenfeng.Study on Temperature Variation of Natural Gas Hydrate Formation in Gas Tank[J].Natural Gas and Oil,2014,32(5):0.doi:
- DOI:
- 作者:
- 杨 波1 李小森2 李茂东1 杜南胜1 林金梅1 汪文锋1
Yang Bo, Li Xiaosen, Li Maodong, Du Nansheng, Lin Jinmei，Wang Wenfeng
- 作者单位:
- 1.广州特种承压设备检测研究院，2.中国科学院广州能源研究所天然气水合物研究中心
1.Guangzhou Special Pressure Equipment Inspection and Research Institute;2.Guangzhou Center for Gas Hydrate Research, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences
- 关键词:
- 储气罐；天然气水合物；多孔介质；温度；压力
Gas tank; Natural gas hydrate; Porous media; Temperature; Pressure
- 摘要:
- 为了研究储气罐中天然气水合物生成的温度变化特征，利用自制的天然气水合物三维模拟装置从甲烷气体和水溶液中成功生成了甲烷水合物，通过温度-压力变化对甲烷水合物在多孔介质中的整个生成过程进行了研究。实验结果表明，注气从垂直中心井注入，导致中心区域温度升高，并向四周蔓延，水合物从中心井往外聚集。由于多孔介质的毛细管作用，甲烷水合物在多孔介质中产生爬壁效应，外侧水合物生成较多，在多孔介质中呈不均匀分布。
In order to study temperature variation characteristics in gas tank during natural gas hydrate formation, applied is a homemade three-dimensional natural gas hydrate simulation equipment to form methane hydrate from methane gas and aqueous solution and investigate the whole formation process of methane hydrate in porous media through temperature-pressure variation. The investigation results show that methane gas is injected from vertical center well into surrounding regions, accordingly, the central region temperature rises and temperature around the central region also rises gradually, and hydrate gathers from the center well outwards. Hydrate in porous media will produce the effect of climbing wall due to capillary action of porous media and more hydrate will form outside and show inhomogeneous distribution in porous media.
