Mixed surfactant systems for enhanced oil recovery

Screening of mixed surfactant systems: Phase behavior studies and CT imaging of surfactant-enhanced oil recovery experiments

10.2172/10108854 ◽

1993 ◽

Author(s):

F.M. Llave ◽

B.L. Gall ◽

P.B. Lorenz ◽

I.M. Cook ◽

L.J. Scott

Keyword(s):

Phase Behavior ◽

Enhanced Oil Recovery ◽

Oil Recovery ◽

Ct Imaging ◽

Mixed Surfactant ◽

Mixed Surfactant Systems ◽

Surfactant Systems

THE EFFECT OF HARDNESS AND TEMPERATURE ON INTERFACIAL TENSION OF INDIVIDUAL AND MIXED SURFACTANT SYSTEM

Science Proceedings Series ◽

10.31580/sps.v2i1.1280 ◽

2020 ◽

Vol 2 (1) ◽

pp. 62-65

Author(s):

NUR ASYRAF MD AKHIR ◽

AFIF IZWAN ABD HAMID ◽

ISMAIL MOHD SAAID ◽

ANITA RAMLI

Keyword(s):

Interfacial Tension ◽

Enhanced Oil Recovery ◽

Oil Recovery ◽

Alkyl Ether ◽

Mixed Surfactant ◽

Mixed Surfactant System ◽

Mixed Surfactant Systems ◽

Surfactant System ◽

Surfactant Systems ◽

The Individual

Surfactant flooding is one of the chemical enhanced oil recovery (CEOR) techniques that can be used to improve oil recovery. The surfactant injection reduces the oil-water interfacial tension and mobilizes residual oil towards the producing well. In this paper, the performance of alkyl ether carboxylate (AEC) and calcium lignosulfonate (CLS) in individual and mixed surfactant systems were investigated based on their ability to reduce the interfacial tension through a spinning drop method. The interfacial tensions of individual and mixed surfactant systems in different brine systems were measured against decane at 25°C and 98°C. The results show that the individual and mixed surfactant systems in 3.5 wt.% NaCl brine has a significant reduction in interfacial tension at 98°C. In contrast, the presence of hardness in 2.5 wt.% NaCl and 1.0 wt.% MgCl2 brine reduces the interfacial tension of the individual AEC surfactant system and mixed surfactant system significantly at 98°C except for the individual CLS system. Meanwhile, the interfacial tension of mixed surfactant system decreases with increasing surfactant concentration in two brine systems and at 98°C. The findings show the significant application of the AEC and CLS surfactant mixture considering the harsh reservoir conditions for the chemical enhanced oil recovery application.

Importance of lignosulfonates in petroleum recovery operations

Canadian Journal of Chemistry ◽

10.1139/v81-288 ◽

1981 ◽

Vol 59 (13) ◽

pp. 1938-1943 ◽

Cited By ~ 18

Author(s):

Graham Neale ◽

Vladimir Hornof ◽

Christopher Chiwetelu

Keyword(s):

Crude Oil ◽

Oil Recovery ◽

Phase Behaviour ◽

Oil Fields ◽

Potential Importance ◽

Mixed Surfactant ◽

Interfacial Tensions ◽

Mixed Surfactant Systems ◽

Petroleum Sulfonate ◽

Surfactant Systems

This paper reviews the potential importance of aqueous lignosulfonate solutions in the recovery of petroleum from existing partially depleted oil fields. The surfactant qualities of lignosulfonates are described and their ability to interact synergistically with petroleum sulfonate surfactants (which are currently popular in the industry) to produce ultra-low interfacial tensions with crude oil is discussed. The phase behaviour characteristics and oil recovery efficacies of these mixed surfactant systems are also examined.

Temperature-induced vesicle to micelle transition in cationic/cationic mixed surfactant systems

Soft Matter ◽

10.1039/c5sm01825k ◽

2015 ◽

Vol 11 (45) ◽

pp. 8848-8855 ◽

Cited By ~ 15

Author(s):

Yanjuan Yang ◽

Lifei Liu ◽

Xin Huang ◽

Xiuniang Tan ◽

Tian Luo ◽

...

Keyword(s):

Mixed Surfactant ◽

Mixed Surfactant Systems ◽

Surfactant Systems

Realization of the vesicle to micelle transitions in cationic/cationic mixed surfactant systems by temperature stimuli.

Adsorption and coalescence in mixed surfactant systems: Water−hydrocarbon interface

Chemical Engineering Science ◽

10.1016/j.ces.2010.04.036 ◽

2010 ◽

Vol 65 (14) ◽

pp. 4141-4153 ◽

Cited By ~ 6

Author(s):

S.M. Reddy ◽

Pallab Ghosh

Keyword(s):

Mixed Surfactant ◽

Mixed Surfactant Systems ◽

Surfactant Systems

Micellar Catalysis of Chemical Reactions by Mixed Surfactant Systems and Gemini Surfactants

Asian Journal of Chemistry ◽

10.14233/ajchem.2021.23187 ◽

2021 ◽

Vol 33 (7) ◽

pp. 1471-1480

Author(s):

Mohammed Hassan ◽

Sadeq M. Al-Hazmi ◽

Ibrahim A. Alhagri ◽

Ahmed N. Alhakimi ◽

Adnan Dahadha ◽

...

Keyword(s):

Gemini Surfactants ◽

Chemical Properties ◽

Catalytic Efficiency ◽

Micellar Catalysis ◽

Head Group ◽

Mixed Surfactant ◽

Structure Control ◽

Mixed Surfactant Systems ◽

Physico Chemical ◽

Surfactant Systems

Micellar catalysis exhibited by mixed surfactant systems and gemini surfactants was reviewed. The review focused on mixed surfactant systems and tried to correlate the changes in the physico-chemical properties of these systems to the variations of their catalytic activities. Mixed surfactant systems are promising as the catalytic efficiency of some single surfactants was significantly enhanced in the presence of other critically selected surfactants. The selection should consider the charge, size, and structures of the head group as well as an appropriate length of hydrocarbon tail. The overall conclusion has arrived the mixed surfactant systems could be a tool by which the reaction rate can be tuned by changing the composition and/or the components’ structures. The higher catalytic activity of gemini surfactants compared to conventional ones, their facile synthesis and liability for structure control made them of superior choice for micellar catalysis.