Microbial Enhanced Oil Recovery (MEOR)

Lazăr, Ioan; Petrisor, Ioana G.; Yen, Teh Fu

doi:10.1080/10916460701287714

Cited by 298 publications

(163 citation statements)

References 14 publications

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“…MEOR is a biologically based technology, which mobilizes trapped oil by utilization of bioproducts through both in situ and ex situ processes. This technology has different mechanisms such as gas production, improving mobility ratio by oil viscosity reduction, biopolymer production, bioclogging, interfacial tension (IFT) reduction and wettability alteration (Armstrong and Wildenschild 2012a;Lazar et al 2007;Sarafzadeh et al 2013;Sivakumar et al 2013;Soudmandasli et al 2007;Zhao et al 2017). However, the last two mechanisms have great importance, since IFT and wettability control capillary forces in porous media.…”

Section: Introductionmentioning

confidence: 99%

Isolation and screening of Bacillus subtilis MJ01 for MEOR application: biosurfactant characterization, production optimization and wetting effect on carbonate surfaces

Veshareh

Azad

Deihimi

et al. 2018

J Petrol Explor Prod Technol

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The bacterial strain MJ01 was isolated from stock tank water of one of the Iranian south oil field production facilities. The 16S rRNA gene of isolate, MJ01, showed 99% similarity to Bacillus subtilis. The results revealed that biosurfactant produced by this strain was lipopeptide-like surfactin based on FTIR analysis. Critical micelle concentration of produced surfactin in distilled water was 0.06 g/l. Wettability study showed that at zero salinity surfactin can change original oil-wet state to water-wet state, but in seawater salinity it cannot modify the wettability significantly. To utilize this biosurfactant in ex situ MEOR process, economical and reservoir engineering technical parameters were considered to introduce a new optimization strategy using the response surface methodology. Comparing the result of this optimization strategy with the previous optimization research works was shown that significant save in use of nutrients is possible by using this medium. Furthermore, using this method leads to less formation damage due to the incompatibility of injecting fluid and formation brine, and less formation damage due to the bioplugging.

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Section: Introductionmentioning

confidence: 99%

Isolation and screening of Bacillus subtilis MJ01 for MEOR application: biosurfactant characterization, production optimization and wetting effect on carbonate surfaces

Veshareh

Azad

Deihimi

et al. 2018

J Petrol Explor Prod Technol

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“…Few studies were conducted on this topic, between 1926 and 1940 (Lazar et al, 2007). In 1944, ZoBell patented a MEOR method and continued researching on this subject.…”

Section: History Of Meormentioning

confidence: 99%

“…The microbial metabolic products that include biosurfactants, biopolymers, acids, solvents, gases, and also enzymes modify the properties of the oil and the interactions between oil, water, and the porous media, which increase the mobility of the oil and consequently the recovery of oil especially from depleted and marginal reservoirs; thus extending the producing life of the wells (Lazar et al, 2007;Belyaev et al 2004; Van et al 2003). In MEOR process, different kinds of nutrients are injected to the reservoirs.…”

Section: Miscible Displacement Processesmentioning

confidence: 99%

Microbial Enhanced Oil Recovery

Rashedi¹,

Yazdian²,

Naghizadeh³

2012

Introduction to Enhanced Oil Recovery (EOR) Processes and Bioremediation of Oil-Contaminated Sites

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“…Among these, microbial enhanced oil recovery (MEOR) is a promising tertiary oil recovery technology for depleted oil fields (Brown 2010;Sen 2008). Indigenous microorganisms, which naturally inhabit oil reservoirs, show a greater metabolic activity than exogenous ones due to their long-term adaptation (CastorenCortés et al 2012;Lazar et al 2007). Therefore, indigenous microorganisms activated MEOR (IMEOR) has greater efficiency than using exogenous ones (Yao et al 2012;Zhang et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Laboratory studies of rice bran as a carbon source to stimulate indigenous microorganisms in oil reservoirs

et al. 2016

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There is a great interest in developing cost-efficient nutrients to stimulate microorganisms in indigenous microbial enhanced oil recovery (IMEOR) processes. In the present study, the potential of rice bran as a carbon source for promoting IMEOR was investigated on a laboratory scale. The co-applications of rice bran, K 2 HPO 4 and urea under optimized bio-stimulation conditions significantly increased the production of gases, acids and emulsifiers. The structure and diversity of microbial community greatly changed during the IMEOR process, in which Clostridium sp., Acidobacteria sp., Bacillus sp., and Pseudomonas sp. were dominant. Pressurization, acidification and emulsification due to microbial activities and interactions markedly improved the IMEOR processes. This study indicated that rice bran is a potential carbon source for IMEOR.

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Microbial Enhanced Oil Recovery (MEOR)

Cited by 298 publications

References 14 publications

Isolation and screening of Bacillus subtilis MJ01 for MEOR application: biosurfactant characterization, production optimization and wetting effect on carbonate surfaces

Isolation and screening of Bacillus subtilis MJ01 for MEOR application: biosurfactant characterization, production optimization and wetting effect on carbonate surfaces

Microbial Enhanced Oil Recovery

Laboratory studies of rice bran as a carbon source to stimulate indigenous microorganisms in oil reservoirs

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