A New Computational Model to Predict Ternary Phase Behaviour of Brine/Oil/Surfactant Mixtures for Chemical Enhanced Oil Recovery (CEOR) Methods

2013 ◽  
Author(s):  
Yisa Ademola Adeeyo ◽  
Mariyamni Awang ◽  
Noaman El-Khatib
Keyword(s):  
Computational Model ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Ternary Phase ◽  
Phase Behaviour ◽  
Surfactant Mixtures

Green enhanced oil recovery (GEOR)

2017 ◽  
Vol 57 (1) ◽  
pp. 150 ◽  
Author(s):  
Bashirul Haq ◽  
Jishan Liu ◽  
Keyu Liu
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Phase Behaviour ◽  
Chemical System ◽  
Core Flooding ◽  
Surfactant Mixtures ◽  
Middle Phase ◽  
Low Concentrations ◽  
Micro Emulsion ◽  
Behaviour Study

Green enhanced oil recovery (GEOR) is a chemical enhanced oil recovery (EOR) method involving the injection of specific green chemicals (surfactants/alcohols/polymers) that effectively displace oil because of their phase-behaviour properties, which decrease the interfacial tension (IFT) between the displacing liquid and the oil. In this process, the primary displacing liquid slug is a complex chemical system called a micellar solution, containing green surfactants, co-surfactants, oil, electrolytes and water. The surfactant slug is relatively small, typically 10% pore volume (PV). It may be followed by a mobility buffer such as polymer. The total volume of the polymer solution is typically ~1 PV. This study was conducted to examine the effectiveness of the combination of microbial by-products Bacillus subtilise strain JF-2 bio-surfactant and alcohol in recovering residual oil. It also considered whether bio-surfactant capability could be improved by blending it with non-ionic green surfactant. The study consisted of a phase behaviour study, IFT measurement and core-flooding experiments. In the phase behaviour study, it was found that 0.5% alkyl polyglycosides (APG) and 0.5–1.00% of butanol at 2% NaCl gave stable middle phase micro-emulsion. Non-ionic (APG 264) and anionic (bio-surfactant) mixtures are able to form stable middle phase micro-emulsion. Based on IFT reduction, two low concentrations (40 and 60 mg/l) of JF-2 bio-surfactant were identified where IFT values were low. The bio-surfactant and butanol formulation produced a total ~39.3% of oil initially in place (OIIP).

The role of carbon nanotubes (CNTs) and carbon particles in green enhanced oil recovery (GEOR) for Arabian crude oil in sandstone core

2020 ◽  
Vol 60 (1) ◽  
pp. 133 ◽  
Author(s):  
Bashirul Haq ◽  
Dhafer Al Shehri ◽  
Abdulaziz Al Damegh ◽  
Abdullatif Al Muhawesh ◽  
Mustafa Albusaad ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Carbon Particle ◽  
Phase Behaviour ◽  
Water Flooding ◽  
Surfactant Mixtures ◽  
Carbon Particles ◽  
Green Surfactant

Green enhanced oil recovery (GEOR) is a chemical enhanced oil recovery (EOR) involving the injection of specific green chemicals (surfactants/alcohols/polymers) that effectively displace oil because of their phase-behaviour properties, which decrease the IFT between the displacing liquid and the oil. Carbon nanoparticles application in EOR has sparked interest in the last few years due to its unique characteristics. Carbon nanotubes (CNTs) are one of the common carbon nanomaterials with EOR potential, but they are not used with green surfactant to improve oil recovery. In addition, the recently developed Date Leaf Carbon Particle (DLCP) method has not been applied to GEOR and requires further study. The role of carbon particles in GEOR is not well understood and requires further investigation. This study was conducted to examine the effectiveness of DLCP and CNT in green surfactant alkyl polyglucoside (APG) for recovering residual oil within rock pores. The study consisted of a set of laboratory experiments. Two formulations of DLCP, CNT and green surfactant mixtures were selected for core-flood experiments based on interfacial tension measurements to examine their potential for EOR. In the first formulation, 0.08% DLCP was mixed with 0.5% APG and produced 45% of tertiary oil and 89% of oil initially in place (OIIP). This formulation produced a significant quantity of incremental oil after water flooding. Lastly, 0.5% APG was blended with 0.08% CNT; this produced about 27% tertiary oil and 77% OIIP.

Phase behaviour and characterization of microemulsion stabilized by a novel synthesized surfactant: Implications for enhanced oil recovery

Fuel ◽  
2019 ◽  
Vol 235 ◽  
pp. 995-1009 ◽  
Author(s):  
Nilanjan Pal ◽  
Sudhir Kumar ◽  
Achinta Bera ◽  
Ajay Mandal
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Phase Behaviour

scholarly journals Tetrapropylammonium Surfactants as Micellar Modifiers for Enhanced Oil Recovery Application

2019 ◽  
Vol 5 (2) ◽  
pp. 110
Author(s):  
Tretya Ardyani ◽  
Azmi Mohamed ◽  
Suriani Abu Bakar
Keyword(s):  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Phase Behaviour ◽  
Minor Effect ◽  
Structure Modification ◽  
Micellar Aggregates

The article addresses an interesting yet unexplored issue in the development of surfactants for microemulsion stabilisation: the role of surfactant headgroup modification to tune the surfactant performances in CO2,water, and cyclohexane. The aqueous properties, and phase behaviour of novel tetrapropylammonum (TPA) surfactants is described. For comparison purposes, the related sodium surfactant (Na-AOT, Na-AOT4, and Na-TC14) are also used to form microemulsions. Observation on the surfactant aqueous properties revealed that the swapping into TPA does not significantly increases the effectiveness of the surfactant in lowering the surface air-water (a/w) tension. The introduction of bulky TPA counterions to normal sulfosuccinate surfactant generally leads to a transition from spherical micellar to extended sheet-like micellar aggregates in water. All in all, the results point minor effect on the headgroup structure modification towards the compatibility of surfactant with CO2.

Characterization of Anionic–Nonionic Surfactant Mixtures for Enhanced Oil Recovery

2019 ◽  
Vol 48 (11-12) ◽  
pp. 1617-1637 ◽  
Author(s):  
U. A. Aziz ◽  
N. Adnan ◽  
M. Z. R. Sohri ◽  
D. F. Mohshim ◽  
A. K. Idris ◽  
...  
Keyword(s):  
Nonionic Surfactant ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Surfactant Mixtures

Enhanced oil recovery using the ionic liquid trihexyl(tetradecyl)phosphonium chloride: phase behaviour and properties

RSC Advances ◽  
2012 ◽  
Vol 2 (25) ◽  
pp. 9392 ◽  
Author(s):  
Sara Lago ◽  
Héctor Rodríguez ◽  
Mohammad K. Khoshkbarchi ◽  
Ana Soto ◽  
Alberto Arce
Keyword(s):  
Ionic Liquid ◽  
Enhanced Oil Recovery ◽  
Oil Recovery ◽  
Phase Behaviour ◽  
Phosphonium Chloride
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