Development of Microorganisms With Improved Transport and Biosurfactant Activity for Enhanced Oil Recovery

McInerney, Michael J.; Duncan, Kathleen E.; Youssef, Noha H.; Fincher, T.; Maudgalya, Saikrishna; Folmsbee, Martha; Knapp, R.M.; Simpson, Randy R.; Ravi, N.; Nagle, D P

doi:10.2172/822122

Cited by 13 publications

(23 citation statements)

References 7 publications

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“…mojavensis str ain JF -1 if a polymer and 2,3-butanediol were present (15,18). The recovery of residual oil depends on the generation of low interfacial tensions in other to release oil that is entrapped in small pores.…”

Section: Introductionmentioning

confidence: 99%

Development of Biosurfactant-Mediated Oil Recovery in Model Porous Systems and Computer Simulations of Biosurfactant-Mediated Oil Recovery

McInerney¹,

Maudgalya²,

Knapp³

et al. 2004

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Executive summaryCurrent technology recovers only one-third to one-half of the oil that is originally present in an oil reservoir. Entrapment of petroleum hydrocarbons by capillary forces is a major factor that limits oil recovery (1,3,4). Hydrocarbon displacement can occur if interfacial tension (IFT) between the hydrocarbon and aqueous phases is reduced by several orders of magnitude. Microbially-produced biosurfactants may be an economical method to recover residual hydrocarbons since they are effective at low concentrations.Previously, we showed that substantial mobilization of residual hydrocarbon from a model porous system occurs at biosurfactant concentrations made naturally by B. mojavensis strain JF-1 if a polymer and 2,3-butanediol were present (2). In this report, we include data on oil recovery from Berea sandstone experiments along with our previous data from sand pack columns in order to relate biosurfactant concentration to the fraction of oil recovered. We also investigate the effect that the JF-2 biosurfactant has on interfacial tension (IFT). The presence of a co-surfactant, 2,3-butanediol, was shown to 2.

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Section: Introductionmentioning

confidence: 99%

Development of Biosurfactant-Mediated Oil Recovery in Model Porous Systems and Computer Simulations of Biosurfactant-Mediated Oil Recovery

McInerney¹,

Maudgalya²,

Knapp³

et al. 2004

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“…Previous sandpacked and sandstone core laboratory column studies indicated that about 2.2 mL of residual oil recovery was recovered per mg of lipopeptide biosurfactant used [160]. Based on the amount of biosurfactant present in the produced fluids, the laboratory derived relationship would predict that 151 bbl of oil should be recovered from the two wells.…”

Section: Resultsmentioning

confidence: 99%

“…We based this hypothesis on several lines of evidence. Bacillus species and phylogenetically related bacteria are commonly detected in oil production fluids [90,91] and 85% of the 160 strains of different Bacillus species that we surveyed produced biosurfactants [41]. Thus, it is likely that oil reservoirs will contain biosurfactant producers.…”

Section: Biosurfactantsmentioning

confidence: 99%

“…Bacillus, Clostridium and Pseudomonas species have often been used in the MEOR process because of their ability to form spores (Bacillus and Clostridium), surfactants, gases, alcohols, solvents and sometimes polymers (22,32,41). Spores have the ability to withstand reservoir conditions and at the same time germinate and produce active microorganisms to produce the products that can be used for MEOR activities.…”

Section: Overviewmentioning

confidence: 99%

“…In our previous DOE project (DE-FC26-02NT1531), we addressed many of these concerns. We have obtained a number of microbial strains that have high biosurfactant activity that is not lost after extended incubation [41]. We have identified the nutrients needed to support luxurious anaerobic growth of biosurfactant-producing bacteria, i. e., deoxyribonucleotides often found in commercially available meat digests [42].…”

Section: Introductionmentioning

confidence: 99%

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Development of an In Situ Biosurfactant Production Technology for Enhanced Oil Recovery

McInerney¹,

Knapp²,

Duncan³

et al. 2007

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Enhanced methane production through bioaugmentation of butyrate‐oxidizing hydrogen‐producing acetogens in anaerobic wastewater treatment

Wang

Liu

et al. 2017

Env Prog and Sustain Energy

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A feasible and readily available source of hydrogenproducing acetogens (HPAs) was developed by obtaining microflora D83 dominated by butyrate-oxidizing HPAs through enrichment and subculture of anaerobic sludge with the use of butyric acid. The effect of bioaugmentation of D83 both on methane production through glucose fermentation and molasses wastewater treatment was evaluated. At a bacterial number-to-activated sludge ratio of 1:9, inoculation of microflora D83 could enhance methane yield and production rate from glucose by a factor of 2.1 and 2.0, respectively. In treatment of normal molasses wastewater, chemical oxygen demand (COD) removal efficiency improved from 75.6% to 88.2%, and the accumulated methane yield and methane yield obtained through COD removal increased by a factor of 2.3 and 2.0, respectively. Hydrogen-producing acetogenesis is apparently a rate-limiting step in methanogenesis because bioaugmentation of HPAs during methane production improved not only hydrogen-producing acetogenesis but also hydrolysis/acidogenesis and methanogenesis.

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Development of Microorganisms With Improved Transport and Biosurfactant Activity for Enhanced Oil Recovery

Cited by 13 publications

References 7 publications

Development of Biosurfactant-Mediated Oil Recovery in Model Porous Systems and Computer Simulations of Biosurfactant-Mediated Oil Recovery

Development of Biosurfactant-Mediated Oil Recovery in Model Porous Systems and Computer Simulations of Biosurfactant-Mediated Oil Recovery

Development of an In Situ Biosurfactant Production Technology for Enhanced Oil Recovery

Enhanced methane production through bioaugmentation of butyrate‐oxidizing hydrogen‐producing acetogens in anaerobic wastewater treatment

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