| 高含CO_2原油井筒流动压力和温度分布综合计算 |
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| 引用本文： | 王庆,吴晓东,刘长宇,王峰.高含CO_2原油井筒流动压力和温度分布综合计算[J].石油钻采工艺,2010,32(1). |
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| 作者姓名： | 王庆 吴晓东 刘长宇 王峰 |
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| 作者单位： | 1. 中国石油大学石油工程教育部重点实验室,北京,102249
2. 吉林油田采油工艺研究院,吉林松原,138000 |
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| 基金项目： | 国家863项目"二氧化碳驱油提高石油采收率与封存关键技术研究"和中国石油科技创新基金 |
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| 摘 要： | CO2驱正越来越受到重视,然而对高含CO2原油混合体系的井筒流动问题,目前尚未见到相关研究文献。由于井筒中CO2从原油中大量脱出,将会对井筒温度压力分布产生较大影响,严重时甚至会发生井喷,因此,对此类问题的研究具有重要的现实意义。从传热学、两相流及多元气液平衡理论出发,将CO2/原油混合流体相态特征以及井筒温度、压力相互影响加以考虑,建立了高含CO2原油井筒流动压力、温度分布综合计算模型,对不同CO2摩尔分数的原油混合体系井筒流动温度、压力进行了计算,结果表明,随着混合体系中CO2含量的增加,井口流体温度呈下降趋势,而井口压力将会增加,在一定条件下油井甚至能够达到自喷。对实例井进行了计算,模型计算结果与实测结果吻合较好,为CO2驱采油井工程设计提供理论方法。
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| 关 键 词： | 二氧化碳驱 相态 井筒流动 高含CO_2原油 温度场 压力场 |
Coupling calculations of the temperature and pressure distribution of crude oil with high CO_2 flow in wellbore |
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| WANG Qing,WU Xiaodong,LIU Changyu,WANG Feng.Coupling calculations of the temperature and pressure distribution of crude oil with high CO_2 flow in wellbore[J].Oil Drilling & Production Technology,2010,32(1). |
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| Authors: | WANG Qing WU Xiaodong LIU Changyu WANG Feng |
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| Affiliation: | WANG Qing1,WU Xiaodong1,LIU Changyu2,WANG Feng2(1.MOE Key Laboratory of Petroleum Engineering in China University of Petroleum,Beijing 102249,china,2.Jilin Oil Field Production Technology Research Institute,Songyuan 138000,China) |
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| Abstract: | With the requirements of greenhouse gas emission reduction,more importance has been attached to CO2 flooding. However,current research literatures of oil with high CO2 flows in welbore,have not been found.Temperature and pressure distribution will have a significant impact,when CO2 is separated from crude oil in wellbore.Furthermore blowout even occurs in serious situation. Consequently,it is important to study on this problem.Based on the theories of heat transfer,two-phase flow and gas-liquid equilibrium,... |
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| Keywords: | carbon dioxide flooding well bore flow Crude oil with high CO_2 temperature pressure |
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