Modification Wettability and Interfacial Tension of Heavy Crude Oil by Green Bio-surfactant Based on <i>Bacillus licheniformis</i> and <i>Rhodococcus erythropolis</i> Strains under Reservoir Conditions: Microbial Enhanced Oil Recovery

Mahmoud, Tahany; Samak, Nadia A.; Abdelhamid, M. M.; Aboulrous, Amany A.; Xing, Jianmin

doi:10.1021/acs.energyfuels.0c03781

Cited by 16 publications

(8 citation statements)

References 62 publications

(86 reference statements)

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“…This was regarded as a sign of the formation of a new production sector and the displacement of the oil layer. Recent literatures have reported that the oil recovery factor was raised up to 16% after applying enzymes on the laboratory scale and up to 269 barrels of oil/day after applying enzymes on the field scale [45][46][47][48][49][50]. On the other hand, the immobilized CotA laccase enhanced the oil recovery to 82.8% on the laboratory scale.…”

Section: Wettability Alteration Measurementsmentioning

confidence: 99%

Immobilized CotA Laccase for Efficient Recovery of HEAVY OIL

Mahmoud

Liu²,

Samak³

2022

Waste Biomass Valor

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CotA laccase was successfully expressed from Pichia pastoris. Magnetic reduced graphene oxide (MRGO) nanocomposite was synthesized and functionalized with iminodiacetic acid (IDA-NH2), and then chelated with Cu2+ for effective immobilization with His-tagged CotA laccase. The Cu2+-chelated MRGO (MRGO-IDA-Cu2+) showed 175 mg/g-support adsorption capacity. The immobilization of CotA laccase with MRGO-IDA-Cu2+ nano-hybrid composite was confirmed by Raman spectroscopy, Thermal Gravimetric Analysis, and X-ray diffraction. The use of nano-hybrid MRGO-IDA-Cu2+ composite to improve heavy oil recovery was investigated. The findings revealed that the interfacial tension between oil and water was reduced to ~ 90% of its original value, and the wettability was changed from the oil-wet state [θ = ∼ 115.2 − 124.5°] to the water-wet state [θ = ∼ 8.9 − 30.1°]. The increase of immobilized CotA laccase concentration and the ratio of nano-hybrid MRGO-IDA-Cu2+ composite decreases the value of interfacial tension (IFT) and contact angle (CA). The core-flooding studies revealed that the oil recovery process of 0.3 wt% nano-hybrid MRGO-IDA-Cu2+ composite was enhanced by 82.8%. Graphical Abstract

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Section: Wettability Alteration Measurementsmentioning

confidence: 99%

Immobilized CotA Laccase for Efficient Recovery of HEAVY OIL

Mahmoud

Liu²,

Samak³

2022

Waste Biomass Valor

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“…However, the main limitation of this type of oils is their high viscosity and density, which challenge and complicate their exploitation and production. − Therefore, research on enhanced heavy oil recovery (EOR) methods is essential to increase the rate of heavy oil production on one hand and on the other hand to improve the quality of the obtained oil as well . Until now, water injection, chemical injection, gas, and thermal injection have been considered the main proposed methods in the field of EOR. ,,,− However, thermal methods are widely believed to be the most important enhanced oil recovery methods in terms of the produced oil quality and economic aspects. According to the literature, in situ combustion (ISC) as a subset of the thermal injection method has been always considered as an effective and appropriate technology, especially when it comes to heavy oil reservoir exploitation. − Basically, this technology consists mainly of air injection into the reservoir under high pressure to provide the necessary conditions for initiating oxidation reactions and promoting a stable combustion flame front for a better oil recovery factor.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ligand Structure on the Kinetics of Heavy Oil Oxidation: Toward Biobased Oil-Soluble Catalytic Systems for Enhanced Oil Recovery

Farhadian

Khelkhal

Tajik

et al. 2021

Ind. Eng. Chem. Res.

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In recent years, protection of the environment from activities associated with enhanced oil recovery has been considered a crucial priority for decision-makers in the international community. The in situ combustion process as a promising thermal enhanced oil recovery method has been attracting considerable interest in terms of improving oil production and environmental protection. However, this technique is not yet well studied. This paper outlines a new approach to improve the process of heavy oil oxidation by designing new biobased oil-soluble catalysts that are able to maintain and stabilize the combustion flame front of the in situ combustion process. A comprehensive theoretical and experimental study including thermal analysis (thermogravimetry/differential scanning calorimetry, TG/DSC) and quantum calculations was used to shed light on the effect of the ligand structure in the oil-soluble catalytic system on the heavy oil oxidation process. The obtained accurate results proved that metal interaction with the designed ligands increased, which led to a decrease in the energy of activation and an increase in the heavy oil oxidation reaction rate. Besides, the obtained DSC curves showed one peak in the presence of Cu and biobased ligands, contrary to the curves obtained for heavy oil oxidation reported with other ligands and metals. In other words, the obtained catalysts merged low-temperature-and high-temperature oxidation regions into one region. These findings reveal that the structure of ligands can significantly affect their interaction with metals in oil-soluble catalysts, and therefore the efficiency of catalysts is dramatically improved. We believe that our work could be usefully employed for further studies to clarify the mechanism of the in situ combustion behavior of heavy oil for a better impact on the environment.

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“…Furthermore, there is no research on the effect of nanofluids and surfactants in enhanced oil recovery by the hot-water-based method (HWBE) because this process has mostly been used for sandstone asphalt rocks. Last but not least, details regarding the effect of nanofluids on mineral surface wettability are unclear [ 22 , 23 , 24 ], as in most reports, wettability has only been studied through contact angle, and elemental and morphological analyses are lacking, which are required for establishing a detailed mechanism.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effect of Nanofluids and Surfactants on Heavy Oil Recovery and Oil-Wet Calcite Wettability

Hou

Sun

2021

Nanomaterials

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In recent years, unconventional oils have shown a huge potential for exploitation. Abundant reserves of carbonate asphalt rocks with a high oil content have been found; however, heavy oil and carbonate minerals have a high interaction force, which makes oil-solid separation difficult when using traditional methods. Although previous studies have used nanofluids or surfactant alone to enhance oil recovery, the minerals were sandstones. For carbonate asphalt rocks, there is little research on the synergistic effect of nanofluids and surfactants on heavy oil recovery by hot-water-based extraction. In this study, we used nanofluids and surfactants to enhance oil recovery from carbonate asphalt rocks synergistically based on the HWBE process. In order to explore the synergistic mechanism, the alterations of wettability due to the use of nanofluids and surfactants were studied. Nanofluids alone could render the oil-wet calcite surface hydrophilic, and the resulting increase in hydrophilicity of calcite surfaces treated with different nanofluids followed the order of SiO2 > MgO > TiO2 > ZrO2 > γ-Al2O3. The concentration, salinity, and temperature of nanofluids influenced the oil-wet calcite wettability, and for SiO2 nanofluids, the optimal nanofluid concentration was 0.2 wt%; the optimal salinity was 3 wt%; and the contact angle decreased as the temperature increased. Furthermore, the use of surfactants alone made the oil-wet calcite surface more hydrophilic, according to the following order: sophorolipid (45.9°) > CTAB (49°) > rhamnolipid (53.4°) > TX-100 (58.4°) > SDS (67.5°). The elemental analysis along with AFM and SEM characterization showed that nanoparticles were adsorbed onto the mineral surface, resulting in greater hydrophilicity of the oil-wet calcite surface, and the roughness was related to the wettability. Surfactant molecules could aid in the release of heavy oil from the calcite surface, which exposes the uncovered calcite surface to its surroundings; additionally, some surfactants adsorbed onto the oil-wet calcite surface, and the combined role made the oil-wet calcite surface hydrophilic. In conclusion, the study showed that hybrid nanofluids showed a better effect on wettability alteration, and the use of nanofluids and surfactants together resulted in synergistic alteration of oil-wet calcite surface wettability.

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Modification Wettability and Interfacial Tension of Heavy Crude Oil by Green Bio-surfactant Based on Bacillus licheniformis and Rhodococcus erythropolis Strains under Reservoir Conditions: Microbial Enhanced Oil Recovery

Cited by 16 publications

References 62 publications

Immobilized CotA Laccase for Efficient Recovery of HEAVY OIL

Immobilized CotA Laccase for Efficient Recovery of HEAVY OIL

Effect of Ligand Structure on the Kinetics of Heavy Oil Oxidation: Toward Biobased Oil-Soluble Catalytic Systems for Enhanced Oil Recovery

Synergistic Effect of Nanofluids and Surfactants on Heavy Oil Recovery and Oil-Wet Calcite Wettability

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