Influence of rock permeability and surface conditioning on carbonate wettability: A link between contact angle and Amott-index

润湿 接触角 相对渗透率 磁导率 饱和(图论) 碳酸盐岩 材料科学 表面光洁度 表面粗糙度 复合材料 矿物学 岩土工程 碳酸盐 地质学 化学 冶金 多孔性 数学 生物化学 组合数学
作者
Abubakar Isah,Muhammad Arif,Mohamed Mahmoud,Muhammad Shahzad Kamal
标识
DOI:10.1016/j.geoen.2023.211892
摘要

The wettability of crude oil/brine/rock system is of great importance in determining oil recovery during water displacement processes. The wetting behavior of rocks has traditionally been assessed via a range of experimental techniques such as the Amott tests and contact angle measurements. While the Amott wettability is known to be influenced by a range of factors, still the impact of rock permeability, rocks surface/saturation condition and initial water saturation remains unclear. Furthermore, a link between Amott wettability and contact angle is missing which is vital to characterize macroscopic vs. core scale wettability. Therefore, in this study, we investigated the effect of permeability, rocks surface/saturation condition and initial water saturation on Amott tests and contact angle measurements using Indiana limestone. We further attempt to experimentally explore the relationship between the contact angle and Amott-Harvey wettability index (IAH) for different rocks. We demonstrated that, in addition to surface texture (roughness) and surface chemistry (heterogeneity), rock surface wetting behavior depends also on the rock permeability and surface/saturation condition (Dry,Sw=1,Sor,SwirrandSo=1). Moreover, a comparison of the observed values for the Amott and contact angles, showed that only when the rock has moderate to high permeability (up to 15.17 mD) will the Amott index corresponds to the wetting state estimated using contact angle method. The influence of several factors on wettability via IAH and contact angle is evident. While permeability demonstrated a positive correlation with wettability, Sor exhibited a negative correlation. For water-wet rocks, contact angle showed weak positive correlation with IAH, while negative correlations were observed in the case of intermediate- and oil-wet rocks. In addition, exceptions were found in the correlations; unlike the IAH, contact angle is weakly correlated with both Sor and Swi obtained from the imbibition experiments. Lastly, spontaneous imbibition time becomes slower and tends to underestimate IAH as rock permeability decreases. The findings from this study will thus broaden the understanding of the interplay of different petrophysical parameters and the relationship between different wetting indices.
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
更新
大幅提高文件上传限制,最高150M (2024-4-1)

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
菩桃发布了新的文献求助10
2秒前
清禾kat发布了新的文献求助10
3秒前
快快乐乐巴完成签到,获得积分10
4秒前
5秒前
tyZhang完成签到,获得积分10
5秒前
科目三应助于是真的采纳,获得10
5秒前
weven完成签到 ,获得积分10
7秒前
9秒前
机灵送终完成签到,获得积分10
11秒前
领导范儿应助123采纳,获得10
13秒前
积极钧完成签到,获得积分10
13秒前
呆萌南松完成签到,获得积分10
14秒前
14秒前
坚定龙猫发布了新的文献求助10
14秒前
14秒前
15秒前
17秒前
清爽冬莲完成签到 ,获得积分10
17秒前
小蘑菇应助饱满的靖易采纳,获得10
19秒前
胡靓靓发布了新的文献求助10
20秒前
QLJ完成签到 ,获得积分10
20秒前
于是真的发布了新的文献求助10
22秒前
23秒前
24秒前
司空豁应助科研通管家采纳,获得10
26秒前
机灵送终发布了新的文献求助10
26秒前
田様应助科研通管家采纳,获得10
26秒前
26秒前
李健应助科研通管家采纳,获得10
26秒前
Cherry完成签到,获得积分10
27秒前
shtatbf应助科研通管家采纳,获得10
27秒前
27秒前
虚心盼夏发布了新的文献求助20
27秒前
陨_0614完成签到 ,获得积分10
27秒前
28秒前
卡牌大师完成签到,获得积分10
28秒前
rorolu完成签到 ,获得积分10
30秒前
无敌小天天完成签到 ,获得积分10
30秒前
共享精神应助呆萌南松采纳,获得10
33秒前
WizBLue发布了新的文献求助30
34秒前
高分求助中
Histotechnology: A Self-Instructional Text 5th Edition 2000
Effect of reactor temperature on FCC yield 1500
PraxisRatgeber: Mantiden: Faszinierende Lauerjäger 800
Uncertainty Quantification: Theory, Implementation, and Applications, Second Edition 800
Production Logging: Theoretical and Interpretive Elements 555
Mesopotamian Divination Texts: Conversing with the Gods 500
The AASM International Classification of Sleep Disorders – Third Edition, Text Revision (ICSD-3-TR) 490
热门求助领域 (近24小时)
化学 医学 生物 材料科学 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 基因 遗传学 催化作用 物理化学 免疫学 量子力学 细胞生物学
热门帖子
关注 科研通微信公众号,转发送积分 3281444
求助须知:如何正确求助?哪些是违规求助? 2919392
关于积分的说明 8395567
捐赠科研通 2590669
什么是DOI,文献DOI怎么找? 1411789
科研通“疑难数据库(出版商)”最低求助积分说明 658080
邀请新用户注册赠送积分活动 639387