新疆石油地质 ›› 2002, Vol. 23 ›› Issue (5): 411-414.

• 油藏工程 • 上一篇    下一篇

化学驱中相态变化对驱油效率的影响

陈民锋, 郎兆新   

  1. 石油大学 石油工程系,北京 102200
  • 收稿日期:2001-11-20 修回日期:2002-03-16 出版日期:2002-10-01 发布日期:2020-08-11
  • 作者简介:陈民锋(1971-),男,河南清丰人。石油大学(北京)石油工程系在读博士生。联系电话:(010)89734802,89734350

The Influence of Phase State Interconversion on Oil Displacement Efficiency in Chemical Flooding

CHEN Min-feng, LANG Zhao-xin   

  • Received:2001-11-20 Revised:2002-03-16 Online:2002-10-01 Published:2020-08-11
  • About author:CHEN Min-feng (1971-), Male, Doctor Candidate, Petroleum Engineering, Petroleum Engineering Department of University of Petroleum, Beijing 102200, China

摘要: 研究了化学驱过程中的相态变化,以及在不同相态下的毛管数对相对渗透率曲线端点值、指数值和残余油饱和度等的重要影响;结合实验数据,计算了不同毛管数下和具有不同润湿性岩石的驱油效率,得出在化学驱过程中,应尽量维持最佳驱替体系,使驱替相保持较高的毛管数,以达到最大限度地提高采收率的目的。

关键词: 化学驱, 毛管数, 相对渗透率曲线, 驱油效率

Abstract: In this paper, influence in chemical flooding from change of phase state and capillary number under different phase state on the end value, exponent of relative permeability curve and residual oil saturation are discussed. Also presented is the experimental oil displacement efficiency of displacing phase at different capillary number in different rocks with varied wettability. The results demonstrate that optimal system should be held to enhance oil recovery largely.

Key words: chemical flooding, capillary number, relative permeability curve, oil displacement efficiency

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