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| 预测井筒压力及温度分布的机理模型 | |
| 引用本文： | 曾祥林,刘永辉,李玉军,李颖川.预测井筒压力及温度分布的机理模型[J].西安石油大学学报(自然科学版),2003,18(2):40-44. |
| 作者姓名： | 曾祥林 刘永辉 李玉军 李颖川 |
| 作者单位： | 1. 中国海洋石油研究中心,北京,100027 2. 西南石油学院,研究生院,四川,南充,637001 3. 西南石油学院,四川,南充,637001 |
| 摘 要： | 基于质量、动量、能量守恒原理及传热学理论 ,建立了预测井筒流体压力、温度分布的综合数学模型 ,采用四阶龙格库塔法迭代求解 ,可同时预测井筒中的压力和温度分布 .给出了实例 ,以井底温度为基准分别按线性模型和机理模型求出了井筒内温度分布 ,并对二者进行了比较 .比较结果表明机理模型更符合实际 .同时可以看出 ,按两个模型求出的井口温度存在较大差异 |
| 关 键 词： | 压力分布 温度分布 焦耳-汤姆森效应 数学模型 |
| 文章编号： | 1001-5361(2003)02-0040-05 |
| 修稿时间： | 2002年12月13 |
Mechanism Model for Predicting the Distributions of Wellbore Pressure and Temperature |
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| ZENG Xiang-lin,LIU Yong-hui,LI Yu-jun,et al.Mechanism Model for Predicting the Distributions of Wellbore Pressure and Temperature[J].Journal of Xian Shiyou University,2003,18(2):40-44. | |
| Authors: | ZENG Xiang-lin LIU Yong-hui LI Yu-jun |
| Abstract: | Based on the theories of mass conservation, momentum conservation, energy conservation, and the transfer of heat in the radial directions of wellbore, the comprehensive mathematical model for predicting wellbore pressure and temperature distributions is established. By using 4th-order Runge-Kutta iteration method, the distribution of both pressure and temperature can accurately and rapidly be predicted. An example is presented. The temperature distributions of wellbore are obtained by the mechanism model and linear model separately, and two results are prepared. It is shown that the mechanism model is more practical. And it is also shown that there is great difference between wellhead temperatures obtained by two models. |
| Keywords: | pressure distribution temperature distribution Joule-Thomson effect mathematical model |
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