石油与天然气地质 ›› 2007, Vol. 28 ›› Issue (4): 520-522.doi: 10.11743/ogg20070413

• 开发地质技术 • 上一篇    下一篇

低张力体系改善低渗透油藏水驱渗流特征实验

赖南君1,2, 叶仲斌2, 陈洪2, 罗平亚2   

  1. 1. 西南石油大学, 研究生院, 四川, 成都, 610500;
    2. 西南石油大学, 油气藏地质及开发工程国家重点实验室, 四川, 成都, 610500
  • 收稿日期:2007-06-08 出版日期:2007-08-25 发布日期:2012-01-16
  • 基金资助:

    国家重点基础发展研究规划(973)项目(G1999022502).

Experiment of low-tension system for improving percolation behaviors in waterflooding low-permeability reservoirs

Lai Nanjun1,2, Ye Zhongbin2, Chen Hong2, Luo Pingya2   

  1. 1. Graduate School of Southwest Petroleum University, Chengdu, Sichuan 610500;
    2. State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan 610500
  • Received:2007-06-08 Online:2007-08-25 Published:2012-01-16

PDF (PC)

655

被引次数

30

摘要：

低渗透油藏注水井吸水能力低,注水压力逐渐升高,注水开发效果差。以国内低渗透注水开发油田(T油田)为例,研制了改善低渗透油藏注水开发效果的低张力体系。室内实验结果表明,低张力体系能够有效地降低残余油饱和度,增加油水两相共渗区间,改善低渗透油藏水驱渗流特征,从而改善低渗透油藏的注水开发效果。

关键词: 低张力体系, 注入压力, 相对渗透率, 渗流特征, 低渗透油藏

Abstract:

Waterflooding performs poorly in low-permeability reservoirs due to their low absorbing capacity and gradually increasing injection pressure.This paper takes T oilfield,a low-permeability oilfield under waterflood development program,as an example to illustrate the development of a Low-Tension System for improving waterflooding effectiveness in low-permeability reservoirs.Lab experimental result shows that the system can effectively reduce residual oil saturation,increase oil/water two-phase common seepage intervals,improve percolation behaviors,and thus enhance waterflooding efficiency in low-permeability reservoirs.

Key words: low-tension system, injection pressure, relative permeability, percolation behavior, low-permeability reservoir

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