scholarly journals Changes in Crude Oil Composition during Laboratory Biodegradation: Acids and Oil–Water, Oil–Hydrate Interfacial Properties

2009 ◽  
Vol 23 (8) ◽  
pp. 4068-4076 ◽  
Author(s):  
Kristin Erstad ◽  
Ina V. Hvidsten ◽  
Kjell Magne Askvik ◽  
Tanja Barth
Keyword(s):  
Crude Oil ◽  
Interfacial Properties ◽  
Oil Composition ◽  
Oil Water

Effect of alkali on Daqing crude oil/water interfacial properties

2007 ◽  
Vol 4 (1) ◽  
pp. 66-69 ◽  
Author(s):  
Guo Jixiang ◽  
Li Mingyuan ◽  
Lin Meiqin ◽  
Wu Zhaoliang
Keyword(s):  
Crude Oil ◽  
Interfacial Properties ◽  
Oil Water

The structure effect on the surface and interfacial properties of zwitterionic sulfobetaine surfactants for enhanced oil recovery

RSC Advances ◽  
2015 ◽  
Vol 5 (18) ◽  
pp. 13993-14001 ◽  
Author(s):  
Jianhui Zhao ◽  
Caili Dai ◽  
Qinfang Ding ◽  
Mingyong Du ◽  
Haishun Feng ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Crude Oil ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Interfacial Properties ◽  
Structure Effect ◽  
Oil Water

The molecular structure has an important effect on the surface and interfacial properties of sulfobetaine surfactant at both air–water and crude oil–water interfaces.

SARA-Based Correlation To Describe the Effect of Polar/Nonpolar Interaction, Salinity, and Temperature for Interfacial Tension of Low-Asphaltene Crude Oils Characteristic of Unconventional Shale Reservoirs

SPE Journal ◽  
2021 ◽  
pp. 1-13
Author(s):  
I. W. R. Saputra ◽  
D. S. Schechter
Keyword(s):  
Interfacial Tension ◽  
Crude Oil ◽  
Oil Recovery ◽  
Petroleum Engineering ◽  
Crude Oils ◽  
Oil Composition ◽  
Surface Activities ◽  
Low Salinity ◽  
Oil Water ◽  
Shale Reservoirs

Summary Oil/water interfacial tension (IFT) is an important parameter in petroleum engineering, especially for enhanced-oil-recovery (EOR) techniques. Surfactant and low-salinity EOR target IFT reduction to improve oil recovery. IFT values can be determined by empirical correlation, but widely used thermodynamic-based correlations do not account for the surface-activities characteristic of the polar/nonpolar interactions caused by naturally existing components in the crude oil. In addition, most crude oils included in these correlations come from conventional reservoirs, which are often dissimilar to the low-asphaltene crude oils produced from shale reservoirs. This study presents a novel oil-composition-based IFT correlation that can be applied to shale-crude-oil samples. The correlation is dependent on the saturates/aromatics/resins/asphaltenes (SARA) analysis of the oil samples. We show that the crude oil produced from most unconventional reservoirs contains little to no asphaltic material. In addition, a more thorough investigation of the effect of oil components, salinity, temperature, and their interactions on the oil/water IFT is provided and explained using the mutual polarity/solubility concept. Fifteen crude-oil samples from prominent US shale plays (i.e., Eagle Ford, Middle Bakken, and Wolfcamp) are included in this study. IFT was measured in systems with salinity from 0 to 24% and temperatures up to 195°F.

The effect of alkali on crude oil/water interfacial properties and the stability of crude oil emulsions

2006 ◽  
Vol 273 (1-3) ◽  
pp. 213-218 ◽  
Author(s):  
Jixiang Guo ◽  
Qing Liu ◽  
Mingyuan Li ◽  
Zhaoliang Wu ◽  
Alfred A. Christy
Keyword(s):  
Crude Oil ◽  
Interfacial Properties ◽  
Oil Water ◽  
Oil Emulsions ◽  
The Stability

Study on the pressure drop of crude oil-water with surfactant flow in porous media

2021 ◽  
pp. 1-7
Author(s):  
Huijun Zhao ◽  
Xiang Ding ◽  
Pengfei Yu ◽  
Yun Lei ◽  
Xiaofei Lv ◽  
...  
Keyword(s):  
Porous Media ◽  
Pressure Drop ◽  
Crude Oil ◽  
Flow In Porous Media ◽  
Oil Water
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