| 考虑井筒热效应的气体井底压力计算 |
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| 引用本文： | 卢德唐,侯彬彬,王磊. 考虑井筒热效应的气体井底压力计算[J]. 中国科学技术大学学报, 2010, 40(3). DOI: 10.3969/j.issn.0253-2778.2010.03.009 |
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| 作者姓名： | 卢德唐 侯彬彬 王磊 |
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| 作者单位： | 中国科学技术大学近代力学系,安徽合肥,230027;中国科学技术大学石油与天然气研究中心,安徽合肥,230027 |
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| 基金项目： | 国家自然科学基金重点项目，国家重大科技专项项目，中国科学院知识创新工程重大项目，国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 将井筒热效应考虑成一维热对流,将地层简化成热传导,使用Ramey定义的综合换热系数将井筒温度与地层温度联系起来,从而建立温度方程,通过解析求解得到温度变化函数.由气体状态方程将温度与压力联系起来,得到由于温度变化而产生的附加压力,将这一附加压力通过内边界条件加入到气体渗流方程中,最终得到考虑井筒热效应的井底压力表达式.比较了考虑热效应与不考虑热效应井底压力的不同,并使用某油田一个实例验证了考虑热效应时井底压力表达式的正确性.
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| 关 键 词： | 气井井底压力 井筒热效应 试井分析 温度 渗流力学 |
Calculation of bottom-hole pressure of gas well considering thermal effect of wellbore |
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| LU Detang,HOU Binbin,WANG Lei. Calculation of bottom-hole pressure of gas well considering thermal effect of wellbore[J]. Journal of University of Science and Technology of China, 2010, 40(3). DOI: 10.3969/j.issn.0253-2778.2010.03.009 |
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| Authors: | LU Detang HOU Binbin WANG Lei |
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| Affiliation: | LU Detang1,2,HOU Binbin1,WANG Lei1,2(1.Department of Modern Mechanics,University of Science , Technology of China,Hefei 230027,China,2.Research Center of Oil , Nature Gas,China) |
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| Abstract: | Considering the thermal effect of wellbore as one-dimensional thermal convection,and the thermal effect of formation was simplified as heat conduction.Ramey's definition of comprehensive heat transfer coefficient was used to link wellbore temperature with formation temperature,so that temperature equation could be established and temperature distribution function could be solved.Variation of temperature yielded additional pressure according to the gas equation of state which linked the temperature with the ... |
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| Keywords: | bottom-hole pressure of gas well thermal effect of wellbore welltest temperature fluid mechanics in porous media |
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