井筒油气水三相流动压力与温度分布的耦合计算模型  

Coupled Computation Model of Pressure and Temperature for Three-Phase Flow in Wellbore

作　　者：苏泉[1] 李景全[1] 石步乾[1] 杨彬[1] 吴冬彦[1] 董正远[2] 

机构地区：[1]中石化河南油田分公司第一采油厂,河南桐柏474780 [2]西安石油大学石油工程学院,陕西西安710065

出　　处：《石油天然气学报》2011年第6期277-280,16,共4页Journal of Oil and Gas Technology

摘　　要：井筒温度分布的准确计算,对于油井生产测试、井筒析蜡预测和油井动态分析都有着重要的意义。考虑到油气水物性受到压力和温度两方面的共同影响以及油气两相之间质量交换的前提下,以质量守恒、动量守恒、能量守恒方程和传热学原理为基础,建立了井筒油气水三相流动压力与温度分布的耦合计算模型,通过将井筒分段,采用有限差分法对模型进行求解,得到了井筒油气水三相流动时的压力与温度分布。计算结果表明,建立的模型具有较高的计算精度,可以作为工程计算参考。The accurate calculation of wellbore temperature distribution was of great significance for well production testing,wax precipitation prediction and well dynamic analysis.In consideration of the common effect of the oil-gas and water property under pressure and temperature,and oil-gas two-phase quality exchanges,and on the basis of mass conservation momentum conservation,energy conservation equations and heat conduction theory,oil-gas-water three-phase flowing coupled calculation model of pressure and temperature distribution was established.Wellbore subsection,finite difference method were used to solve the model,the flowing pressure and temperature distribution of oil-gas and water three phase were obtained.Calculation results show that the model has a good calculation accuracy and can be used as a reference for engineering calculation.

关 键 词：井筒 油气水三相流 压力分布 温度分布 耦合模型 

分 类 号：TE311[石油与天然气工程—油气田开发工程]