| 天然气水合物降压开采数值模拟及影响因素分析 |
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| 引用本文： | 宋永臣,梁海峰,王志国.天然气水合物降压开采数值模拟及影响因素分析[J].大连理工大学学报,2009,49(2):199-204. |
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| 作者姓名： | 宋永臣 梁海峰 王志国 |
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| 作者单位： | 1. 大连理工大学教育部海洋能源利用与节能重点实验室,辽宁,大连,116024
2. 大连理工大学教育部海洋能源利用与节能重点实验室,辽宁,大连,116024;大庆石油学院秦皇岛分院,河北,秦皇岛,066004 |
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| 基金项目： | “八六三”国家高技术研究发展计划资助项目(2006AA09A209-5);;国家自然科学基金资助项目(90510003);;教育部重大研究计划资助项目(306005) |
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| 摘 要： | 采用数值模拟方法,将降压开采分为完全分解区、分解区和未分解区进行数值模拟研究,建立了天然气水合物多相(气、水、水合物)流分解能量守恒模型、分解反应动力学模型.在此基础上,建立了二维数学模型以分析产气性能影响因素.模拟计算结果表明,出口压力越大,累积产气量越小;边界传热越快,分解越快;绝对渗透率对累积产气量和产气率影响较小.所做工作为进一步开展室内模拟实验和工程应用研究提供了技术依据.
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| 关 键 词： | 天然气水合物 降压开采 数值模拟 影响因素 |
Numerical simulation for natural gas produced from hydrate and analysis of influence factors |
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| SONG Yongchen LIANG Haifeng WANG Zhiguo.Numerical simulation for natural gas produced from hydrate and analysis of influence factors[J].Journal of Dalian University of Technology,2009,49(2):199-204. |
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| Authors: | SONG Yongchen LIANG Haifeng WANG Zhiguo |
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| Affiliation: | 1.Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education;Dalian University of Technology;Dalian 116024;China;2.Qinhuangdao Branch of Daqing Petroleum Institute;Qinhuangdao 066004;China |
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| Abstract: | To simulate the natural gas hydrates,all depressurization zones are divided into three parts: full-decomposed part,decomposing part and be-decomposing part.Beside multi-phase(gas,water and hydrate) flow mass balance and energy balance in all parts,the intrinsic dissociation reaction of hydrate is considered in decomposing part.Based on these models,one two-dimensional program was made for analyzing the factors affecting the production performance.With higher outer pressure,the cumulative gas produced become... |
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| Keywords: | natural gas hydrate depressurization numerical simulation influence factors |
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