新疆石油地质

›› 2012, Vol. 33 ›› Issue (6): 1-1.

• 论文 •    

疏松砂岩气藏水敏性对相 对渗透率的影响

陈朝晖1，邓 勇2   

  1. (1. 西南石油大学 石油工程学院,成都 610500;2.中国石化 西南油气分公司 勘探开发研究院,成都 610081)
  • 出版日期:2019-01-01 发布日期:1905-07-13

Influence of Water Sensitivity on Relative Permeability in Loose Sandstone Gas Reservoir

CHEN Zhaohui1, DENG Yong2   

  1. (1.Institute of Petroleum Engineering, Southwest Petroleum University, Chengdu, Sichuan 610500, China; 2.Research Institute of Exploration and Development, Southwest Branch, Sinopec, Chengdu, Sichuan 610081, China)
  • Online:2019-01-01 Published:1905-07-13

PDF

181

摘要： 通过分析黏土矿物膨胀引发的单位孔隙体积变化，建立孔隙微观结构特征参数动态模型，利用三维孔隙网络技术计算不同黏土含量及水侵时间下的相对渗透率，评价和研究储集层水敏性对相对渗透率的影响。实验证明，涩北气田疏松砂岩气藏在开采过程中，地层水的侵入会造成黏土矿物膨胀，影响流体渗流规律及特征，使相对渗透率曲线整体向右偏移，两相共渗区变小，而且地层水对储集层的影响大于清水的影响。

Abstract: By analysis of pore volume change caused by clay mineral swelling, the dynamic model for characteristic parameters of pore microscopic structure is developed. The relative permeability under different clay contents and water invading time is simulated using 3D pore network model for the purpose of quantitative evaluation of the influence of water sensitivity on relative permeability. The experiment indicated that in the process of development of loose sandstone gas reservoir in Sebei gas field, the invasion of formation water may causeclay mineral swelling, affecting the fluid percolation and flowing characteristics in the reservoir. The relative permeability curve will shift to the right and the seepage zone of the two?phase fluids will become smaller, and the influence of formation water on the reservoir is greater than that of clean water

中图分类号: