不同温度下泡沫对气液相相对渗透率的影响
DOI:
作者:
作者单位:

作者简介:

李爱芬,女,教授,博导,从事提高采收率方面的研究及教学工作。联系电话:(0532)86981163,E-mail:aifenli@upc.edu.cn。

通讯作者:

基金项目:


Experimental study of foam on gas-liquid relative permeability at different temperature
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    泡沫能够有效封堵高渗透窜流通道,泡沫驱是一个多相流动的过程,而相对渗透率是表征多相渗流的重要参数,泡沫驱相渗规律的研究对稠油热采工艺具有重要意义。测定了不同温度下泡沫封堵压差随气液流量比的变化,分析了不同气液流量比下泡沫封堵压差的变化及温度的影响;利用稳态法测定了不同温度下泡沫存在和不存在时气液相相对渗透率曲线,研究了温度对泡沫驱中气液相相对渗透率的影响。结果表明:在实验温度范围内,温度越高,泡沫的封堵效果越好;在气液流量比为2~4时,泡沫的封堵压差最大,封堵效果最好;泡沫不影响液相相对渗透率与含液饱和度的关系,但泡沫使得液相相对渗透率整体偏小;当含液饱和度低于临界含液饱和度时,泡沫对气相相对渗透率无影响;当含液饱和度高于临界饱和度时,气相相对渗透率相较于无泡沫作用时降低了2~3个数量级;在实验温度范围内,随温度的升高,液相相对渗透率的变化很小,但气相相对渗透率的临界含液饱和度变大,并且曲线的平缓段所对应的气相相对渗透率降低。

    Abstract:

    There are many researches about the influence of the foam on gas-liquid relative permeability, but the influence of the temperature on foam relative permeability curve needs to be further studied. The curve reflecting the relationship between foam block pressure and gas-liquid flow rate ratio is measured at different temperature in this paper. So, the impact of the gas-liquid flow ratio and temperature on the block pressure is analyzed. The gas-liquid relative permeability curves both with the and without effects of foam are measured by using steady-state method in this paper. On this base, the flow rules of foam at different temperature are also characterized. The results indicate that the higher the experimental temperature, the better the sealing performance. And, both the foam block pressure and the blocking performance of foam can attain the highest degree in the range of gas-liquid flow ratio between 2 and 4. The foam has no effect on the relationship between the liquid relative permeability and the water saturation. The gas relative permeability,however, has a sharp decline under the action of foam. With the experimental temperature, the critical water saturation became higher with the increase of temperature and the moderate values of the gas relative permeability became lower with the increase of temperature.

    参考文献
    相似文献
    引证文献
引用本文

李爱芬,李会会,吕姣,王守龙.不同温度下泡沫对气液相相对渗透率的影响[J].油气地质与采收率,2013,20(6):80

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2015-09-02