A new approach to establishing the capillary bundle model

Yuan Yuan; Meng Yingfeng; Tang Hanlin

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A new approach to establishing the capillary bundle model

更新时间：2025-12-05

- A new approach to establishing the capillary bundle model
- Petroleum Reservoir Evaluation and Development Vol. 8, Issue 3, Pages: 35-39(2018)
- 作者机构：
  
  1. 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
  2. 中国石化胜利油田分公司孤东采油厂,山东,东营,257237
- 作者简介：
- 基金信息：
- DOI：
  CLC： TE122.2
- Published：2018
- 稿件说明：
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Yuan Yuan, Meng Yingfeng, Tang Hanlin. A new approach to establishing the capillary bundle model[J]. Petroleum Reservoir Evaluation and Development, 2018, 8(3): 35-39.
DOI：

Yuan Yuan, Meng Yingfeng, Tang Hanlin. A new approach to establishing the capillary bundle model[J]. Petroleum Reservoir Evaluation and Development, 2018, 8(3): 35-39. DOI：

摘要

毛管束模型是表征多孔介质最常用的物理模型之一。经典的毛管束模型是一簇簇等径的直毛管

但该物理模型忽略了多孔介质的弯曲性。因此

以致密砂岩为研究对象

结合压汞资料

引入毛管束模型的修正因子——迂曲度

提出了一种建立毛管束模型的新方法。该方法考虑了毛管束模型的弯曲性

可以准确地计算出毛细管半径、不同毛细管的孔隙度、渗透率、不同半径毛细管的体积以及不同半径毛细管对整个毛管束模型的渗透率贡献

对于研究特定压差下储层工作液的渗吸、定量表征储层水侵损害具有重大的意义。

Abstract

The capillary bundle model is one of the most common physical models for the porous media. The most classic physical model is the straight capillary bundle model with same diameter. But the bendability of the porous media is neglected in this physical model. Therefore

based on the tight sandstone

combined with the mercury data

and by the introduction of the correction factor-tortuosity

we put forward a new approach to establish the capillary bundle model. This approach considers the bendability of the capillary bundle model and can accurately calculate the radius of capillary

capillary porosity and permeability

capillary volume of different radius and permeability contribution of capillary bundle model with different radius. This new approach has great significance for the study of the reservoir fluid imbibition of specific pressure and quantitatively characterizing the water invasion reservoir damage.

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