水合物地层中考虑相变的轴对称热传导问题
Axial symmetrical thermal conduction of gas hydrate-bearing sediments related to phase transformations
查看参考文献19篇
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文摘
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沉积层中水合物热分解是一个含有水合物相变的热传导过程,相变界面的演化过程是水合物分解规律及相关灾害分析的最基本问题。文中在试验观测和分析实际物理过程的基础上,建立了水合物沉积层中混相-多相变阵面-多区域的热传导理论模型,并针对轴对称问题进行了系列数值模拟;模型试验测定了四氢呋喃水合物沉积物中不同热源温度下水合物相变阵面的演化过程。通过对比,水合物分解相变阵面扩展的数值与试验结果吻合较好。 |
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其他语种文摘
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Thermal conduction and phase transformation are essential physical-chemical processes in the dissociation of gas hydrate deposit.The evolution of thermal conduction and dissociation front is the most fundamental scientific problem in the investigation of gas hydrate dissociation and related hazards.An axial symmetric theoretical model is presented based on experimental observations and comprehensive analysis of the physical process.A numerical method is obtained.The THF hydrate phase transformation fronts in deposit are measured by experiments considering a series of different thermal sources.By comparison,the numerical and experimental results are in agreement well with each other. |
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来源
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地学前缘
,2012,19(4):327-333 【核心库】
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关键词
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水合物热分解
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相变阵面
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热传导
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轴对称
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地址
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1.
中国科学院力学研究所, 北京, 100190
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中海石油（中国）有限公司北京研究中心, 北京, 100027
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1005-2321 |
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学科
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地质学 |
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基金
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国家自然科学基金项目
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国家863计划
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文献收藏号
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CSCD:4576907
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