The microscale analysis of reverse displacement based on digital core

被引：25

作者：

An, Senyou ^{[1
]}

Yao, Jun ^{[1
]}

Yang, Yongfei ^{[1
]}

Zhang, Wenjie ^{[1
]}

Zhao, Jianlin ^{[1
]}

Li, Aifen ^{[1
]}

机构：

[1] China Univ Petr, Petr Engn Dept, Qingdao, Shandong, Peoples R China

来源：

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING | 2017年 / 48卷

基金：

中国博士后科学基金; 中国国家自然科学基金;

关键词：

Reverse displacement; In-situ CT experiment; Digital core; Flooding experiment; FLOW;

D O I：

10.1016/j.jngse.2016.12.014

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The recovery of the reservoir is always the center of development because of its renewable characteristic. There are many methods designed to enhance the development of residual hydrocarbon, such as water flooding, polymer flooding, and the adjustment of well pattern. But the microscale mechanisms of fluid flow in porous media is still ambiguous, especially for reverse flooding. So in-situ displacement experiment based on CT scanning was designed in this paper to analyze the trapped oil after various flooding. In pore scale level, the total number of residual oil and average volume were counted. For further observing distribution changes, we classified the shape of residual oil based on shape factor and Euler number, and calculated the corresponding proportion. These results show that the adjustment of flow streamline can effectively improve oil recovery after water forward flooding and polymer displacement. (C) 2016 Published by Elsevier B.V.

引用

页码：138 / 144

页数：7

共 23 条

[1] Influence of pore structure parameters on flow characteristics based on a digital rock and the pore network model [J].