| 考虑热效应的CO2气井试井压力模型和计算方法 |
| |
| 引用本文： | 侯彬彬,卢德唐,李道伦.考虑热效应的CO2气井试井压力模型和计算方法[J].中国科学技术大学学报,2011,41(3). |
| |
| 作者姓名： | 侯彬彬 卢德唐 李道伦 |
| |
| 作者单位： | 中国科学技术大学近代力学系,安徽合肥,230027;安徽省计算与通讯软件重点实验室,安徽合肥,230027 |
| |
| 基金项目： | 国家自然科学基金，国家重点基础研究发展(973)计划 |
| |
| 摘 要： | 油井注CO2采油,在CO2停注关井后,井筒不同位置处温度与地层温度不相同,存在井筒和地层的热交换,变化的温度和井筒储集流动共同影响井底压力.为了正确模拟关井后不同时刻的井筒压力,温度,密度和速度分布,建立了一个基于CO2注入的井筒管流及地层渗流热流耦合数学模型,对地层气体渗流采用半解析半数值的求解,对井筒流动使用PISO方法来进行数值计算.计算结果表明:关井后热效应对井底压力导数曲线的早期形态有明显的影响,因而可以分析热效应对井底压力的影响,正确指导CO2注A工艺.
|
| 关 键 词： | PISO 热效应 有限体积法 温度 CO2渗流 |
Pressure model and calculation of well test for gas wells with CO2 injection considering thermal effect |
| |
| HOU Binbin,LU Detang,LI Daolun.Pressure model and calculation of well test for gas wells with CO2 injection considering thermal effect[J].Journal of University of Science and Technology of China,2011,41(3). |
| |
| Authors: | HOU Binbin LU Detang LI Daolun |
| |
| Affiliation: | HOU Binbin1,2,LU Detang1,LI Daolun1,2(1.Department of Modern Mechanics,University of Science and Technology of China,Hefei 230027,China,2.Key Laboratory of Software in Computing and Communication of Anhui Province,China) |
| |
| Abstract: | CO2 is often injected into an oil well to explore for oil.After shutting the well and suspending the injection,the temperature of any location in the wellbore is different from that of the location in earth formation at the same level of depth.So there is heat exchange between the wellbore and earth formation,and the varying temperature and wellbore storage both have an influence on the pressure at the bottom hole of the wellbore.A pressure model and its calculation of well test for gas wells with CO2 injec... |
| |
| Keywords: | PISO thermal effect finite volume method temperature CO2 in porous media |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
