Effect of the Temperature on CO2/Brine/Dolomite Wettability: Hydrophilic versus Hydrophobic Surfaces

被引：61

作者：

Al-Yaseri, A. Z. ^{[1
]}

Roshan, H. ^{[3
]}

Zhang, Y. ^{[1
]}

Rahman, T. ^{[1
]}

Lebedev, M. ^{[2
]}

Barifcani, A. ^{[1
]}

Iglauer, S. ^{[1
]}

机构：

[1] Curtin Univ, Dept Petr Engn, Kensington, WA 6151, Australia

[2] Curtin Univ, Dept Explorat Geophys, Kensington, WA 6151, Australia

[3] Univ New South Wales, Sch Petr Engn, Sydney, NSW 2033, Australia

来源：

ENERGY & FUELS | 2017年 / 31卷 / 06期

关键词：

WATER CONTACT ANGLES; INTERFACIAL-TENSION; SUPERCRITICAL CO2; DISSOLUTION KINETICS; IMPACT; PRESSURE; STORAGE; SEQUESTRATION; CONTAMINATION; INJECTION;

D O I：

10.1021/acs.energyfuels.7b00745

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 water contact angle in a system of brine (20 wt % CaCl2) and CO2 was measured on a smooth dolomite surface [root mean square (RMS) surface roughness of 45 rim] with both hydrophilic and hydrophobic behaviors as a function of the pressure (0.1, 5, 10, 15, and 20 MPa) and temperature (308, 323, and 343 K). The experimental results show that the contact angle of brine/CO2 increases slightly with the temperature when the dolomite surface is hydrophilic but, interestingly, reduces When the surface is hydrophobic. The results also illustrate that the brine/CO2 contact angles increase with increasing pressure: We interpreted the experimental observations using the concept of alteration in van der Waals potential (substrate surface chemistry) with thermodynamic properties,. including pressure and temperature.

引用

页码：6329 / 6333

页数：5

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