| CO2混相驱最小混相压力确定方法研究 |
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| 引用本文： | 毛振强,陈凤莲.CO2混相驱最小混相压力确定方法研究[J].成都理工大学学报(自然科学版),2005,32(1):61-64. |
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| 作者姓名： | 毛振强 陈凤莲 |
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| 作者单位： | 中国石化胜利有限公司纯梁采油厂,山东博兴,256504;中国石化胜利有限公司纯梁采油厂,山东博兴,256504 |
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| 摘 要： | CO2混相驱是低渗透油藏提高采收率的三次采油技术,而CO2混相驱最小混相压力是研究的关键.文章从经验公式计算、室内实验和数值模拟三个方面进行了研究,分析论证了确定CO2混相驱最小混相压力的方法;通过岩心驱替实验研究证明了混相驱可以大幅度提高油藏采收率,混相驱应用于低渗透油藏开发是可行性的;在确定了最小混相压力的基础上,把CO2混相驱应用于东营凹陷樊124块的油藏开发取得了良好的效果.
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| 关 键 词： | CO2混相驱 最小混相压力 采收率 |
| 文章编号： | 1671-9727(2005)01-0061-04 |
| 修稿时间： | 2004年7月8日 |
Determination of minimum miscible phase pressure for CO2 miscible drive |
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| MAO Zhen-qiang,CHEN Feng-lian.Determination of minimum miscible phase pressure for CO2 miscible drive[J].Journal of Chengdu University of Technology: Sci & Technol Ed,2005,32(1):61-64. |
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| Authors: | MAO Zhen-qiang CHEN Feng-lian |
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| Abstract: | The CO_2 miscible drive is the third production technique to enhance oil recovery for the low permeability reservoir. The minimum miscible phase pressure of the CO_2 miscible drive is the key of the study. In this paper, three respects are studied, including empirical equation, lab test and numerical model. The method to calculate the minimum miscible phase pressure of the CO_2 miscible drive is analyzed. The core driving test demonstrates that the miscible drive can greatly increase oil recovery efficiency. It is feasible that the miscible drive is used for the low permeability reservoir development. Based on the calculation of the minimum miscible phase pressure, the result to apply the CO_2 miscible drive to reservoir development for Fan-124 in the Dongying sag is very good. |
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| Keywords: | CO_2 miscible drive minimum misicble phase pressure recovery efficiency |
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