Synergic Impacts of Two Non-ionic Natural Surfactants and Low Salinity Water on Interfacial Tension Reduction, Wettability Alteration and Oil Recovery: Experimental Study on Oil Wet Carbonate Core Samples

Dabiri, Abdolreza; Honarvar, Bizhan

doi:10.1007/s11053-020-09657-9

Cited by 21 publications

(8 citation statements)

References 38 publications

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“…Nowadays, polymers have been widely industrially used in many oil fields and have achieved certain results. 9 − 11 However, polymers have limited viscosity, which limits their ability to increase the sweeping volume. 12 , 13 Simultaneously, polymers have poor shear resistance, 14 salinity resistance, 15 and temperature resistance, 16 and viscosity was reduced further after injection into the reservoir.…”

Section: Introductionmentioning

confidence: 99%

“…Polymers , can reduce the oil–water mobility ratio and increase the sweeping volume which lead to improved oil recovery out of its viscosity. Nowadays, polymers have been widely industrially used in many oil fields and have achieved certain results. − However, polymers have limited viscosity, which limits their ability to increase the sweeping volume. , Simultaneously, polymers have poor shear resistance, salinity resistance, and temperature resistance, and viscosity was reduced further after injection into the reservoir. Furthermore, after water flooding, the reservoir will form a dominant channel for water flow, which will change the pore structure of the reservoir. , All of these factors contribute to polymers’ limited ability to plug dominant channels and increase sweeping volume.…”

Section: Introductionmentioning

confidence: 99%

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High Blocking Capacity of Fuzzy-Ball Fluid to Further Enhance Oil Recovery after Polymer Flooding in Heterogeneous Sandstone Reservoirs

et al. 2021

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Even after a long time of polymer flooding, over half of the crude oil is still trapped in the reservoir due to the poor plugging capacity. It has been demonstrated that fuzzy-ball fluid can be utilized as an effective plugging fluid. The idea of further increasing oil recovery by fuzzy-ball fluid following polymer flooding drew us to investigate it due to its high performance and effect. In this paper, seepage behavior experiments and parallel core displacement experiments were carried out to evaluate the plugging ability and oil displacement effect of fuzzy-ball fluid. Also, the microscopic blocking mechanism of fuzzy-ball fluid was observed. The results showed that fuzzy-ball fluid has a good plugging capability thanks to the pressure consumption and accumulation plugging mechanisms. The resistance coefficient and residual resistance coefficient of fuzzy-ball fluid are also substantially greater than those of the polymer, at 76.25–239.96 and 13.95–49.91, respectively. Due to its outstanding plugging capability, fuzzy-ball fluid can achieve complete fluid diversion, with the flow fraction of the high-permeability core reduced to nearly 0% and that of the low-permeability core increased to nearly 100%. As a result, low-permeability core oil recovery and total oil recovery both can be enhanced by 46.12–49.24 and 22.81–24.40%, respectively. A field test of fuzzy-ball fluid flooding was carried out in wells TX 1 and TX 2 which have been flooding with polymers. After the fuzzy-ball fluid was introduced, total daily oil production increased by 64.15%. Fuzzy-ball fluid can significantly boost oil recovery after polymer flooding, according to laboratory and field trials, providing a technical solution for heterogeneous sandstone reservoirs to further enhance oil recovery.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High Blocking Capacity of Fuzzy-Ball Fluid to Further Enhance Oil Recovery after Polymer Flooding in Heterogeneous Sandstone Reservoirs

et al. 2021

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“…In addition, core flooding test in a carbonate rock sample showed that ultimate oil recovery increased from 45.2% for secondary recovery to 72% when the combined smart water and surfactant flooded . The influence of four kinds of salt (CaCl 2 , MgCl 2 , Na 2 SO 4 , and MgSO 4 ) has been investigated at different concentrations on two types of surfactants (Natural Gemini surfactant and Tribulus terrestris surfactant) at the optimum concentration of 4.06 mN/m IFT was recorded fot the Gemini surfactant and 6.21 mN/m for the Tribulus terrestris ; when the contact angle was reduced to 31.25°, the ultimate oil recovery, as a result, was enhanced from 69.7% for smart water solution to 82.2% for smart water-Gemini surfactant flooding. − In other work, Eslahati et al have investigated the effect of synthetic seawater from the calcium, magnesium, and sulfate ion . The result demonstrates that the natural surfactant introduced from alfalfa causes the reduction of IFT from 63.4 mN/m to 29.3 mN/m and rock wettability changed toward water-wet, as a result of decreasing the contact angle from 130.5° to 87°.…”

Section: Mixed Chemical Eormentioning

confidence: 99%

Review of the Application of Natural Surfactants in Enhanced Oil Recovery: State-of-the-Art and Perspectives

2023

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Injecting surfactant by means of chemical enhanced oil recovery (cEOR) has acquired predominant attention in improving oil recovery by changing either fluid/rock and/or fluid/fluid interaction due to ion-pair forming and/or surfactant adsorption on the rock surface. As the main surfactant role in EOR, IFT reduction refers to adsorbing of surfactant molecules on the residual oil/water interface, which causes an increase in capillary number; as a result, trapped oil drops in porous media get free and start to move through the pore space toward the production well. The toxic nature, excessive cost, and environmental issues are the obvious limitations in applying the chemical surfactants in EOR, hence, looking for a less-expensive and eco-friendly type of surfactant has become a significant task to researchers to study the natural surfactant as an alternative to chemical surfactants. A deep understanding about the classification of natural surfactants, fabrication methods, and the difference between each class is crucial to propose a new plant-derived natural surfactant. This study tried to review up-to-date published studies related to the natural surfactant types and prepare a comprehensive catalog respective to natural surfactant that helps researchers with regard to future work in natural surfactant application in EOR. In addition, comparisons of each class performance and the impact of nanoparticles and the salinity on them in reducing IFT, altering wettability, and improving the recovery factor have been investigated. It had been concluded that natural surfactant can be produced from different plant parts (leaf, root, steam, fruit, and seed) based on the fabrication method. Natural surfactants synthesized from seed oil are stronger, compared with those extracted from the plant part (i.e., IFT reduction by 98%). Generally, injecting natural surfactants expressed low to high performance in improving the ultimate oil recovery from 2% to 40% original oil in place (OOIP).

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“…Saponins have diverse applicationsthey are applied as additives in beverages, cosmetics, confectioneries, and pharmaceutical products. ,,− Since the pioneering work of Rignano and Lionetti in 2009 to extract saponin from the Chilean soap bark tree ( Quillaja saponaria Molina ), there have been considerable studies in the extraction of saponins for EOR applications from various sources . These include the extraction of saponins from Tribulus terrestris , ,, Vernonia amygdalina , , soapnuts; ,− Anabasis setifera , Glycyrrhiza glabra , − and Zyziphus spina-christi . ,− …”

Section: Background Of Surfactant Floodingmentioning

confidence: 99%

Review on Potential Application of Saponin-Based Natural Surfactants for Green Chemical Enhanced Oil Recovery: Perspectives and Progresses

et al. 2023

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Synthetic chemical surfactants deployed in the petroleum industry to improve oil recovery to meet growing global energy demand are described to have detrimental environmental impacts and are expensive. In recent times, the exploration of saponin-rich plants as a substitute for environmentally threatening synthetic surfactants has garnered significant interest from researchers. Saponin-based natural surfactants (SBNSs) are nontoxic, biodegradable, and possess desirable properties for use in the oil and gas industry. This paper reviews the potential application of saponin-based natural surfactants in enhanced oil recovery processes that coincide with the interests of the United Nations' Sustainable Development Goal 7 for Affordable and Clean Energy. We reviewed the mechanisms of saponin-based natural surfactants in enhanced oil recovery (EOR), surfactant adsorption, and the recent advances in utilizing saponin-based natural surfactants for EOR purposes. We also provided a comprehensive analysis of the impact of salinity and temperature on the performance of SBNSs. Moreover, the study also presented the economic feasibility and limitations of SBNSs for field enhanced oil recovery applications. We identified that a good number of SBNSs can withstand harsh reservoir conditions, optimize interfacial tension by as high as 95.82% (although not to ultralow levels), and alter rock wettability from hydrophobicity to hydrophilicity, thereby reducing the contact angle by 3.64% to 87.5%. SBNSs also successfully yielded a high incremental oil recovery factor of up to 36% in the postsecondary recovery stage. The advent of techniques, such as alkali incorporation and nanotechnology, support the achievement of ultralow interfacial tension, mitigation of surfactant adsorption, and oil recovery improvement. Future studies can adopt the recommendations outlined in this study to minimize uncertainty in the utilization of SBNSs and enhance their design for "green" chemical enhanced oil recovery applications.

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Synergic Impacts of Two Non-ionic Natural Surfactants and Low Salinity Water on Interfacial Tension Reduction, Wettability Alteration and Oil Recovery: Experimental Study on Oil Wet Carbonate Core Samples

Cited by 21 publications

References 38 publications

High Blocking Capacity of Fuzzy-Ball Fluid to Further Enhance Oil Recovery after Polymer Flooding in Heterogeneous Sandstone Reservoirs

High Blocking Capacity of Fuzzy-Ball Fluid to Further Enhance Oil Recovery after Polymer Flooding in Heterogeneous Sandstone Reservoirs

Review of the Application of Natural Surfactants in Enhanced Oil Recovery: State-of-the-Art and Perspectives

Review on Potential Application of Saponin-Based Natural Surfactants for Green Chemical Enhanced Oil Recovery: Perspectives and Progresses

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