Investigation of wettability alteration through relative permeability measurement during MEOR process: A micromodel study

Khajepour, Hamideh; Mahmoodi, Maziyar; Biria, Davoud; Ayatollahi, Shahab

doi:10.1016/j.petrol.2014.05.022

Cited by 40 publications

(23 citation statements)

References 57 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…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). Thus, the demand for more oil to be produced has been pushing for new technologies to be efficiently developed.…”

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

View full text Add to dashboard Cite

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.

show abstract

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

View full text Add to dashboard Cite

show abstract

“…Several studies of microfluidic systems for EOR have been developed up to date. The assays have been performed with different chemical compounds such as surfactant/water floods, polymer floods such as HPAM, foam floods, nanofloods with nanoparticles, or micromodels to simulate the processes of microbial EOR . In this paper, the functionality of the EOR microdevice was evaluated injecting, oil, water, and a commercial polyacrylamide polymer.…”

Section: Resultsmentioning

confidence: 99%

Accessible and Cost‐Effective Method of PDMS Microdevices Fabrication Using a Reusable Photopolymer Mold

Bourguignon

Olmos

Sierra-Rodero

et al. 2018

J Polym Sci B Polym Phys

View full text Add to dashboard Cite

This work describes a novel and cost‐effective method of polydimethylsiloxane (PDMS) microchips fabrication by using a printing plate photopolymer called Flexcel as a master mold (Fmold). This method has demonstrated the ability to generate multiple devices from a single master, reaching a minimum channel size of 25 μm, structures height ranging from 53 to 1500 μm and achieving dimensions of 1270 × 2062 mm2, which are larger than those obtained by the known techniques to date. Scanning electron microscopy, atomic force microscopy, and profilometry techniques have been employed to characterize the Fmold and PDMS replicas. The results showed high replication fidelity of Fmold to the PDMS replica. Furthermore, it was proved the reusability of the Fmold. In our study, up to 50 PDMS replicas have been fabricated without apparent degradation of the mold. The feasibility of the resulting PDMS replica was effectively demonstrated using a microfluidic device for enhanced oil recovery analysis. © 2018 Wiley Periodicals, Inc. J. Polym. Sci., Part B: Polym. Phys. 2018, 56, 1433–1442

show abstract

“…Dietzia. Acinetobacter , and Brevibacterium , were found to produce many kinds of surfactants (Najafi et al, 2011; Zheng et al, 2012; Khajepour et al, 2014). Some of these genera were found to produce different types of surfactants and have multiple species.…”

Section: Resultsmentioning

confidence: 99%

“…In the water flooding experiments investigating the MEOR potential of Rhodococcus ruber Z25, Zheng et al (2012) achieved improvement of oil recovery by 8.9–25.8%. Application of biosurfactant producing strain Enterobacter cloacae increased the oil recovery up to 24.5% (Khajepour et al, 2014). Xia et al (2011) reported 14.3% enhancement compared with the control condition using the biosurfactants of Pseudomonas aeruginosa in their oil recovery experiment.…”

Section: Resultsmentioning

confidence: 99%

Rhamnolipids Produced by Indigenous Acinetobacter junii from Petroleum Reservoir and its Potential in Enhanced Oil Recovery

Dong

Xia²,

Dong

et al. 2016

Front. Microbiol.

View full text Add to dashboard Cite

Biosurfactant producers are crucial for incremental oil production in microbial enhanced oil recovery (MEOR) processes. The isolation of biosurfactant-producing bacteria from oil reservoirs is important because they are considered suitable for the extreme conditions of the reservoir. In this work, a novel biosurfactant-producing strain Acinetobacter junii BD was isolated from a reservoir to reduce surface tension and emulsify crude oil. The biosurfactants produced by the strain were purified and then identified via electrospray ionization-Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR-MS). The biosurfactants generated by the strain were concluded to be rhamnolipids, the dominant rhamnolipids were C26H48O9, C28H52O9, and C32H58O13. The optimal carbon source and nitrogen source for biomass and biosurfactant production were NaNO3 and soybean oil. The results showed that the content of acid components increased with the progress of crude oil biodegradation. A glass micromodel test demonstrated that the strain significantly increased oil recovery through interfacial tension reduction, wettability alteration and the mobility of microorganisms. In summary, the findings of this study indicate that the newly developed BD strain and its metabolites have great potential in MEOR.

show abstract

Investigation of wettability alteration through relative permeability measurement during MEOR process: A micromodel study

Cited by 40 publications

References 57 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)

Accessible and Cost‐Effective Method of PDMS Microdevices Fabrication Using a Reusable Photopolymer Mold

Rhamnolipids Produced by Indigenous Acinetobacter junii from Petroleum Reservoir and its Potential in Enhanced Oil Recovery

Contact Info

Product

Resources

About