Effect of Surfactant‐Assisted Wettability Alteration on Immiscible Displacement: A Microfluidic Study

2021 ◽  
Author(s):  
Weipeng Yang ◽  
Joshua W. Brownlow ◽  
Dustin L. Walker ◽  
Jun Lu
Keyword(s):  
Wettability Alteration ◽  
Immiscible Displacement ◽  
Surfactant Assisted

Pore Scale Study of the Effects of Wettability Alteration on Enhanced Oil Recovery

2021 ◽  
Author(s):  
Weipeng Yang ◽  
Jun Lu
Keyword(s):  
Oil Recovery ◽  
Water Injection ◽  
Surfactant Solution ◽  
Recovery Process ◽  
Wettability Alteration ◽  
Immiscible Displacement ◽  
Microfluidic Chips ◽  
Pore Scale ◽  
Low Velocity ◽  
Different Characteristics

Abstract Drainage displacement at unfavorable viscosity ratios is often encountered in oil recovery process, which significantly limits the oil recovery. Surfactants have been extensively used as wettability modifier to improve the hydrocarbon recovery from rock matrix by imbibition, but little attention has been paid to the use of surfactant-aided wettability alteration to suppress fingering during displacement. In this study, we investigate the surfactant-aided immiscible displacement in oil-wet microfluidic chips. We find that the change of advancing contact angle by surfactant is velocity dependent and stable displacement can be achieved at low velocity when surfactant solution is used at the injection fluid. In comparison, fingering occurs at all capillary numbers for water injection, resulting in low oil recovery. Besides, the generation of oil ganglion during waterflooding and surfactant flooding exhibits completely different characteristics. Our study reveals the pore-scale mechanism of surfactant-aided wettability on the immiscible displacement, which is important for highly efficient oil recovery.

IMMISCIBLE DISPLACEMENT OF VISCOPLASTIC WAXY CRUDE OILS: A NUMERICAL STUDY

2017 ◽  
Vol 20 (5) ◽  
pp. 417-433 ◽  
Author(s):  
Ali Salehi-Shabestari ◽  
Mehrdad Raisee ◽  
Kayvan Sadeghy
Keyword(s):  
Numerical Study ◽  
Crude Oils ◽  
Immiscible Displacement ◽  
Waxy Crude ◽  
Waxy Crude Oils

Preparation of Graphene Nanolayers through Surfactant-assisted Pure Shear Milling Method

2019 ◽  
Vol 1 (1) ◽  
pp. 28-33
Author(s):  
Asghar Kazemzadeh ◽  
Mohammad Ali Meshkat ◽  
Hooman Kazemzadeh ◽  
Mostafa Moradi ◽  
Reza Bahrami ◽  
...  
Keyword(s):  
Pure Shear ◽  
Milling Method ◽  
Graphene Nanolayers ◽  
Surfactant Assisted
Sign in / Sign up

Export Citation Format

Share Document