Quantitative characterization of imbibition in fractured porous media based on fractal theory

渗吸 润湿 多孔介质 磁导率 多孔性 水力压裂 石油工程 岩土工程 断裂(地质) 机械 材料科学 地质学 复合材料 物理 化学 植物 发芽 生物 生物化学
作者
Debin Xia,Zhen Liao,Mingyan Wu,Zhengming Yang,Haibo Li,Di Shi
出处
期刊:Physics of Fluids [American Institute of Physics]
卷期号:36 (5) 被引量:1
标识
DOI:10.1063/5.0207926
摘要

In low-permeability reservoirs, such as shale and tight sandstone, imbibition is an important mechanism for enhancing oil recovery. After hydraulic fracturing treatment, these reservoirs create a network of fracture pathways for fluid flow. Therefore, understanding the imbibition mechanisms in fractured porous media and quantitatively characterizing oil–water distribution are crucial for the development of low-permeability reservoirs. In this study, a mathematical model of two-phase flow in porous media with branching fractures was established. The phase-field method was employed to track the oil–water interface, and quantitative characterization of imbibition was conducted based on fractal theory, and the effects of wetting phase injection rate, the number of disconnected fractures, fracture spacing, and fracture morphology on imbibition in branched fracture porous media were discussed. The research findings indicate that in branched fracture porous media, both co-current and countercurrent imbibition processes occur simultaneously, and there exists a diffusion interface layer with a certain thickness at the oil–water interface. The hydraulic pressure generated by the wetting phase injection rate provides the driving force for imbibition oil recovery, but it also affects the contact time between the wetting and non-wetting phases. The presence of disconnected fractures hinders the propagation of hydraulic pressure, reducing the effectiveness of imbibition. The imbibition displacement zone is limited and occurs only within a certain range near the fractures. As the number of branching fractures increases, the channels for the wetting phase to enter matrix pores are enhanced, resulting in higher efficiency of imbibition displacement of the oil phase. The results of this research can provide guidance for the design of fracturing programs and recovery prediction in low-permeability reservoirs.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
刚刚
万万想到了完成签到,获得积分10
刚刚
Ren发布了新的文献求助10
刚刚
小盒儿完成签到,获得积分10
1秒前
2秒前
花会发完成签到,获得积分20
3秒前
QR发布了新的文献求助10
4秒前
5秒前
aura完成签到,获得积分10
5秒前
啵啵鱼发布了新的文献求助10
6秒前
8秒前
aura发布了新的文献求助10
8秒前
清风发布了新的文献求助10
8秒前
汉堡包应助小黄加油鸭采纳,获得10
11秒前
chen应助儒雅沛蓝采纳,获得20
11秒前
13秒前
13秒前
14秒前
豆⑧发布了新的文献求助10
14秒前
M郑完成签到,获得积分10
17秒前
小余完成签到,获得积分10
18秒前
隐形曼青应助唠叨的曼雁采纳,获得100
19秒前
飞羽发布了新的文献求助30
19秒前
20秒前
整齐新儿发布了新的文献求助10
20秒前
可爱的函函应助cqnusq采纳,获得10
21秒前
在水一方应助_是小满采纳,获得10
22秒前
小蘑菇应助淡然的昊焱采纳,获得10
22秒前
ding应助_是小满采纳,获得10
22秒前
FashionBoy应助_是小满采纳,获得10
22秒前
Owen应助_是小满采纳,获得10
22秒前
Jasper应助_是小满采纳,获得10
22秒前
pluto应助包女士采纳,获得10
24秒前
24秒前
YYY发布了新的文献求助10
25秒前
北城完成签到,获得积分10
25秒前
豆豆发布了新的文献求助10
25秒前
瘦瘦的枫叶完成签到 ,获得积分10
25秒前
球闪发布了新的文献求助10
28秒前
云云完成签到,获得积分10
29秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2500
Востребованный временем 2500
Aspects of Babylonian celestial divination : the lunar eclipse tablets of enuma anu enlil 1500
Agaricales of New Zealand 1: Pluteaceae - Entolomataceae 1040
Healthcare Finance: Modern Financial Analysis for Accelerating Biomedical Innovation 1000
Classics in Total Synthesis IV: New Targets, Strategies, Methods 1000
지식생태학: 생태학, 죽은 지식을 깨우다 600
热门求助领域 (近24小时)
化学 医学 材料科学 生物 工程类 有机化学 生物化学 纳米技术 内科学 物理 化学工程 计算机科学 复合材料 基因 遗传学 物理化学 催化作用 细胞生物学 免疫学 电极
热门帖子
关注 科研通微信公众号,转发送积分 3459121
求助须知:如何正确求助?哪些是违规求助? 3053676
关于积分的说明 9037638
捐赠科研通 2742926
什么是DOI,文献DOI怎么找? 1504571
科研通“疑难数据库(出版商)”最低求助积分说明 695334
邀请新用户注册赠送积分活动 694605