Toward mechanistic understanding of natural surfactant flooding in enhanced oil recovery processes: The role of salinity, surfactant concentration and rock type

Sofla, Saeed Jafari Daghlian; Sharifi, Mohammad; Hemmati-Sarapardeh, Abdolhossein

doi:10.1016/j.molliq.2016.07.086

Cited by 113 publications

(32 citation statements)

References 33 publications

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“…During primary recovery, which uses the natural energy of the reservoir, it is only possible to produce about 5 to 15% of the initial amount of hydrocarbon. Posterior to this step, methods such as water or gas injection are used as an attempt to increase the amount of recovered oil, characterizing the secondary recovery (Daghlian Sofla et al 2016). As a result of the implementation of these operations, still, only 30-50% of the oil present in the reservoir can be removed (Fernandes et al 2016), which require the utilization of enhanced oil recovery techniques (EOR) (Sen 2008;Brown 2010;Khajepour et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Application of rhamnolipid biosurfactant produced by Pseudomonas aeruginosa in microbial-enhanced oil recovery (MEOR)

Câmara

Sousa

Neto

et al. 2019

J Petrol Explor Prod Technol

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In this study, the biosurfactant produced by Pseudomonas aeruginosa was evaluated in view of its ability to be used in Microbial-Enhanced Oil Recovery (MEOR). This microorganism was isolated from a soil artificially contaminated with crude oil and used to produce rhamnolipid using glycerol as the carbon source. The biosurfactant efficiently reduced water surface tension from 72 to 35.26 mN/m at its critical micelle concentration of 127 mg/L and emulsification rate (E 24) of 69% for the crude oil. Furthermore, it was demonstrated that the rhamnolipid can recover oil, even 2 months after its production, which shows that its biodegradability is not a disadvantage to the application in MEOR. The best result, for a biosurfactant concentration of 100% above the Critical Micelle Concentration (CMC) and petroleum with API gravity of 21.90, showed that the total recovery factor was 50.45 ± 0.79%, of which 11.91 ± 0.39% corresponds to MEOR.

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Section: Introductionmentioning

confidence: 99%

Application of rhamnolipid biosurfactant produced by Pseudomonas aeruginosa in microbial-enhanced oil recovery (MEOR)

Câmara

Sousa

Neto

et al. 2019

J Petrol Explor Prod Technol

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“…Dehghan et al (2015) conducted an experimental study on the application of some surfactant in different conditions of reservoir, types of rocks, reservoir fluids and salinity ranges. They reported that the effect of the used surfactants on IFT reduction was interfered by the 20161-Butyl-3-methylimidazolium dodecyl sulfate IFT influences of the mentioned factors, and optimized when with the optimal salinity level (Daghlian et al 2016). Rodriguez (1992) investigated the amount of surfactant adsorption on the surface of the carbonate rock, and it was identified that the surfactant adsorption was increased with increasing the flowrate at constant surfactant concentration and temperature.…”

Section: Introductionmentioning

confidence: 99%

Investigating the effect of [C8Py][Cl] and [C18Py][Cl] ionic liquids on the water/oil interfacial tension by considering Taguchi method

Najimi

Nowrouzi

Manshad

et al. 2019

J Petrol Explor Prod Technol

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Capillary and interfacial forces are of great influences of trapping hydrocarbon in porous media after primary and secondary recovery processes. The trapped crude oil in the reservoir can be mobilized and produced by reducing these forces. Thus, surfactant flooding, as a main enhanced oil recovery (EOR) method, is usually applied to reduce the interfacial tension (IFT) of crude oil-water system in porous medium and improves the oil recovery. This study focused on the effect of [C 8 Py][Cl] and [C 18 Py][Cl] ionic liquids (ILs), as a new family of surfactant, in combination with various salts including sodium chloride, potassium chloride, magnesium sulfate and potassium sulfate on IFT reduction. EOR injection solutions were prepared from mixing the ILs at different concentrations of 100, 250, 500 and 1000 ppm with the salts ranging from 500 to 80,000 ppm. Obtained results showed that the minimum IFT value from both ILs was achieved when the concentration of the ILs was about 1000 g/mL, and the concentrations of KCl, K 2 SO 4 , MgSO 4 and NaCl were 1000, 2000, 500 and 80,000 ppm, respectively. The minimum IFTs were achieved when NaCl and ILs concentrations were the maximum and MgSO 4 concentration was the minimum.

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“…Their results showed that the minimum IFT was 0.07 mN/m and a maximum oil recovery up to 62.1% OOIP were achieved using an anionic surfactant with a concentration of 4000 ppm (Nabipour et al 2017). Additionally, Daghlian et al (2016) investigated the effect of a natural surfactant called Cedar and three common surfactants (CTAB, SDS, and AOS) on IFT reduction. IFT was reduced from 30.1 to about 6 mN/m and ultralow values with increasing oil recovery up to 17% OOIP.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation into l-Arg and l-Cys eco-friendly surfactants in enhanced oil recovery by considering IFT reduction and wettability alteration

et al. 2019

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Surfactant flooding is an important technique used to improve oil recovery from mature oil reservoirs due to minimizing the interfacial tension (IFT) between oil and water and/or altering the rock wettability toward water-wet using various surfactant agents including cationic, anionic, non-ionic, and amphoteric varieties. In this study, two amino-acid based surfactants, named lauroyl arginine (l-Arg) and lauroyl cysteine (l-Cys), were synthesized and used to reduce the IFT of oil-water systems and alter the wettability of carbonate rocks, thus improving oil recovery from oil-wet carbonate reservoirs. The synthesized surfactants were characterized using Fourier transform infrared spectroscopy and nuclear magnetic resonance analyses, and the critical micelle concentration (CMC) of surfactant solutions was determined using conductivity, pH, and turbidity techniques. Experimental results showed that the CMCs of l-Arg and l-Cys solutions were 2000 and 4500 ppm, respectively. It was found that using l-Arg and l-Cys solutions at their CMCs, the IFT and contact angle were reduced from 34.5 to 18.0 and 15.4 mN/m, and from 144° to 78° and 75°, respectively. Thus, the l-Arg and l-Cys solutions enabled approximately 11.9% and 8.9% additional recovery of OOIP (original oil in place). It was identified that both amino-acid surfactants can be used to improve oil recovery due to their desirable effects on the EOR mechanisms at their CMC ranges.

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Toward mechanistic understanding of natural surfactant flooding in enhanced oil recovery processes: The role of salinity, surfactant concentration and rock type

Cited by 113 publications

References 33 publications

Application of rhamnolipid biosurfactant produced by Pseudomonas aeruginosa in microbial-enhanced oil recovery (MEOR)

Application of rhamnolipid biosurfactant produced by Pseudomonas aeruginosa in microbial-enhanced oil recovery (MEOR)

Investigating the effect of [C8Py][Cl] and [C18Py][Cl] ionic liquids on the water/oil interfacial tension by considering Taguchi method

Experimental investigation into l-Arg and l-Cys eco-friendly surfactants in enhanced oil recovery by considering IFT reduction and wettability alteration

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