Development of More Effective Biosurfactants for Enhanced Oil Recovery

Han, Sang-Min; Maudgalya,; Mouttaki,; Folmsbee,; Knapp,; Jackson, Matthew D.; Stuadt,; Frey, Georg

doi:10.2172/806980

Cited by 8 publications

(6 citation statements)

References 6 publications

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“…Biosurfactants act as surface-active molecules that reduce the interfacial tension (IFT) between different fluid components, and enhance pseudosolubilization of oil in water by creating smaller oil droplets (Khire 2010). Injection of partially purified biosurfactants has increased the amount of recovered oil to 40% (Mcinerney et al 2003). Compared with chemically synthesized surfactants, biosurfactants are biodegradable, nontoxic, characteristically diverse, and stable under extreme conditions.…”

Section: Introductionmentioning

confidence: 99%

Screening and characterization of biosurfactant produced by Pseudoxanthomonas sp. G3 and its applicability for enhanced oil recovery

Astuti

Purwasena

Putri

et al. 2019

J Petrol Explor Prod Technol

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Biosurfactants are one of the microbial bioproducts that are in most demand from microbial-enhanced oil recovery (MEOR). We isolated and screened potential biosurfactant-producing bacteria, followed by biosurfactant production and characterization, and a simulation of the MEOR application to biosurfactants in a sand-packed column. Isolate screening was conducted based on qualitative (hemolytic blood assay and oil-spreading test) and semi-qualitative (emulsification assay and interfacial tension measurement) parameters. Bacterial identification was performed using 16S rRNA phylogenetic analysis. Sequential isolation yielded 32 bacterial isolates, where Pseudomonas sp. G3 was able to produce the most biosurfactant. Pseudomonas sp. G3 had the highest emulsification activity (Ei = 72.90%) in light crude oil and could reduce the interfacial tension between oil and water from 12.6 to 9.7 dyne/cm with an effective critical-micelle concentration of 0.73 g/L. The Fourier transform infrared spectrum revealed that the biosurfactant produced was a glycolipid compound. A stable emulsion of crude extract and biosurfactant formed at pH 2-12, up to 100 °C, and with a NaCl concentration of up to 10% (w/v) in the response-surface method, based on the Box-Behnken design model. The sand-packed column experiment with biosurfactant resulted in 20% additional oil recovery. Therefore, this bacterium and its biosurfactant show potential and the bacterium is suitable for use in MEOR applications.

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Section: Introductionmentioning

confidence: 99%

Screening and characterization of biosurfactant produced by Pseudoxanthomonas sp. G3 and its applicability for enhanced oil recovery

Astuti

Purwasena

Putri

et al. 2019

J Petrol Explor Prod Technol

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“…Comparing two heavy oil and medium-to-light-gravity oil recovery yields showed that the MEOR method might be appropriate for both light and heavy oils. e work of McInerney et al [93,101] and other papers [102,103] indicated lower than 0.1 mN/m interfacial tension between water and oil while using lipopeptides. Lipopeptide surfactants have a poor yield and high manufacturing costs when produced through fermentation; therefore, they are rarely applied in field-scale EOR projects, and utilizing them is limited to industries like paper, health care, pulp, and foods [104].…”

Section: Application Of Biosurfactants In Eor Methodsmentioning

confidence: 93%

A Review on Biosurfactant Applications in the Petroleum Industry

Ping

Alikhani

2021

International Journal of Chemical Engineering

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The inadequacy of worldwide fossil fuel resources, combined with increasing energy demands, encourages global attention to either using alternative energy resources or improving the recovery factor and produce larger quantities from present reservoirs. Among all enhanced oil recovery (EOR) methods, surfactant injection is a well-known technique that reduces the interfacial tension (IFT) between oil and water and increases oil production. Despite numerous advantages of using surfactants, there are also a few obstacles like environmental impacts, high cost, effect on humans and other organisms due to toxicological potential, and availability from nonrenewable resources. Biosurfactants are microbial surface-active agents that decrease the surface tension (ST) of a liquid phase and the IFT of two diverse phases. They are biotechnological products of high value owing to their widespread applications, low toxicity, relatively easy preparation, and specific performance, applied in different industries like organic chemicals and fertilizers, agrochemicals, metallurgy and mining, cosmetics, foods, medical and pharmaceuticals, beverages, environmental management, and petroleum and petrochemical applications in emulsifying and demulsifying wetting agents, detergent spreading and foaming agents, and functional food ingredients. Biosurfactants are synthesized by microbes; therefore, various genetic diversities of microorganisms provide the considerable capability to produce new types of biosurfactants, which can develop EOR technology. Biosurfactants are classified into ex situ and in situ MEOR processes. The genera Pseudomonas, Bacillus, Sphingomonas, and Actinobacteria are the foremost biosurfactant-producing bacteria. This paper reviews relevant reports and results from various presented papers by researchers and companies on applications of microorganisms and biosurfactant technology with specific emphasis on EOR and MEOR processes, based on recently published articles since 2010 until now.

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“…Over 1000 wells in the United States have been using MEOR technology to increase oilfield production, and 78% of them decreased water production and increased oil recovery [25]. The production of biosurfactants such as rhamnolipids is a reason for microbes to enhance oil recovery [26]. However, due to the heterogeneity of reservoir structure, only microbial flooding is inefficient, because the injected microbial fluids move along the high permeability layer with relatively low oil saturation, resulting in low oildisplacement efficiency [27].…”

Section: Introductionmentioning

confidence: 99%

Improving Oil Recovery of the Heterogeneous Low Permeability Reservoirs by Combination of Polymer Hydrolysis Polyacrylamide and Two Highly Biosurfactant-Producing Bacteria

Xue

Zhao²,

Zhou³

et al. 2021

Sustainability

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Polymer hydrolysis polyacrylamide and microbes have been used to enhance oil recovery in many oil reservoirs. However, the application of this two-method combination was less investigated, especially in low permeability reservoirs. In this work, two bacteria, a rhamnolipid-producing Pseudomonas aeruginosa 8D and a lipopeptide-producing Bacillus subtilis S4, were used together with hydrolysis poly-acrylamide in a low permeability heterogeneous core physical model. The results showed that when the two bacterial fermentation liquids were used at a ratio by volumeof 1:3 (v:v), the mixture showed the optimal physicochemical properties for oil-displacement. In addition, the mixture was stable under the conditions of various temperature (20–70 °C) and salinity (0–22%). When the polymer and bacteria were mixed together, it had no significant effects in the viscosity of polymer hydrolysis polyacrylamide and the viability of bacteria. The core oil-displacement test displayed that polymer hydrolysis polyacrylamide addition followed by the bacterial mixture injection could significantly enhance oil recovery. The recovery rate was increased by 15.01% and 10.03%, respectively, compared with the sole polymer hydrolysis polyacrylamide flooding and microbial flooding. Taken together, these results suggest that the strategy of polymer hydrolysis poly-acrylamide addition followed by microbial flooding is beneficial for improving oil recovery in heterogeneous low permeability reservoirs.

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Development of More Effective Biosurfactants for Enhanced Oil Recovery

Cited by 8 publications

References 6 publications

Screening and characterization of biosurfactant produced by Pseudoxanthomonas sp. G3 and its applicability for enhanced oil recovery

Screening and characterization of biosurfactant produced by Pseudoxanthomonas sp. G3 and its applicability for enhanced oil recovery

A Review on Biosurfactant Applications in the Petroleum Industry

Improving Oil Recovery of the Heterogeneous Low Permeability Reservoirs by Combination of Polymer Hydrolysis Polyacrylamide and Two Highly Biosurfactant-Producing Bacteria

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