A mechanistic experimental study on the combined effect of Mg2+, Ca2+, and SO42- ions and a cationic surfactant in improving the surface properties of oil/water/rock system

Derikvand, Zeinab; Rezaei, Amin; Parsaei, Rafat; Riazi, Masoud; Torabi, Farshid

doi:10.1016/j.colsurfa.2019.124327

Cited by 49 publications

(14 citation statements)

References 51 publications

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“…This surfactant has been previously proven to promote oil recovery in petroleum reservoirs. The improvement in the oil recovery was due to the ability of the surfactants to (a) reduce the oil/water interfacial tension 21 ; (b) generate foam in porous media, 22 and (c) modify rock wettability so that it shifts toward water‐wet conditions 23 . Furthermore, surfactants such as DTAB were proven by Kwon et al 18 to greatly improve the bitumen properties through an effective deasphalting mechanism at low temperatures.…”

Section: Methodsmentioning

confidence: 99%

The effect of cationic surfactants on bitumen's viscosity and asphaltene nanostructure under thermal partial upgrading

Abdrabou

Han

Zheng

et al. 2022

Energy Science & Engineering

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Bitumen extracted from oil sands is a highly viscous fluid; thus, its transportation via pipelines in its original form resembles a major challenge. Partial upgrading is a recently proposed approach that aims to reduce bitumen's viscosity to meet the pipeline specifications. To optimize the process and make it more cost-effective, a novel approach is proposed and researched in this study. Ionic surfactants were for the first time employed to promote thermal cracking reactions and dispersion of asphaltenes in bitumen at elevated upgrading temperatures. Three surfactants representing the cationic, nonionic, and anionic charges were studied at the thermal upgrading conditions (360-400 • C) at their optimal addition ratios to mimic the bitumen partial upgrading conditions. The results demonstrated that the cationic surfactant (dodecyltrimethylammonium bromide, DTAB) surpassed the other two surfactants and that with the addition of only 0.25 wt% of it, it can effectively reduce the viscosity of bitumen by up to 60% more than the upgraded bitumen with no additives under the same upgrading temperature.The Saturates, Aromatics, Resins, and Asphaltene analysis revealed that the contents of saturates and aromatics within the upgraded bitumen were also enhanced when DTAB was added. Moreover, the detailed asphaltene nanostructural analysis using X-ray diffraction, high-resolution transmission electron microscope, and thermogravimetric analysis revealed that the addition of the cationic surfactant (DTAB) resulted in an increased asphaltene nanostructural disorder, smaller polycyclic aromatic hydrocarbons size, and increased fringe curvature, as compared with the upgraded bitumen's asphaltene with no surfactants. Hence, the results have suggested that DTAB, a cheap and readily available ionic surfactant, can serve as a potential upgrading additive for designing partial upgrading procedures to produce upgraded bitumen with much less viscosity at lower upgrading temperatures.

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Section: Methodsmentioning

confidence: 99%

The effect of cationic surfactants on bitumen's viscosity and asphaltene nanostructure under thermal partial upgrading

Abdrabou

Han

Zheng

et al. 2022

Energy Science & Engineering

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“…Surfactant flooding is considered to be one of the most effective methods for wettability alteration in EOR processes [19,[31][32][33][34]. A reduction in contact angle of carbonate rocks from 140°to 74°was observed for 0.3 wt% SDS solution [35].…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the influence of Mg 2+ , Ca 2+ , and SO 4 2− ions and CTAB surfactants was investigated for enhancing the surface characteristics of the oil/water/rock system. It was stated that the existence of those ions in the presence and absence of surfactant led to the meaningful contact angle reduction, notably at the low scales of salinity [34]. Furthermore, wettability measurement of the reservoir brine-reservoir rock system with the dissolution of CO 2 at high pressures and temperatures was studied.…”

Section: Introductionmentioning

confidence: 99%

Insight into the Synergic Effect of Ultrasonic Waves, SDS Surfactant, and Silica Nanoparticles on Wettability Alteration of Carbonate Rocks

et al. 2021

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The impact of ultrasonic radiation, as an emerging enhanced oil recovery technique, on reservoir fluid properties is of great importance in petroleum engineering. Although the effect of sonication on fluid properties has been widely investigated, the wettability alteration of carbonate rocks via different solutions under ultrasonic radiation has not been considered. In this study, the synergic impact of ultrasonic radiation on the wettability alteration of carbonate rocks was studied by using distilled water, seawater, SDS surfactant, silica nanoparticles, and SDS surfactant-silica nanoparticles solutions. Variance analysis showed that all parameters under ultrasonic radiation, including types of water, surfactant solution, nanoparticles, sonication time, and temperature, were meaningful and had influences on the wettability alteration. The contact angle decreased notably by raising the temperature and sonication time. Ultrasonic waves improved the elimination of chemisorbed fatty acids on the surface, and this could be one of the mechanisms of wettability alteration by the ultrasonic application.

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“…The surfactants have been widely studied as additives to decrease the oil–water interfacial tension (IFT) and residual oil saturation [ 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. They also act as a high-grade agent to alter the rock surface wettability [ 31 , 32 ]. The ability of surfactant solutions to alter the wettability of solid surfaces depends on the properties of both the surfactant and the neighboring reservoir rock [ 33 ].…”

Section: Introductionmentioning

confidence: 99%

Insights into the Effects of Pore Size Distribution on the Flowing Behavior of Carbonate Rocks: Linking a Nano-Based Enhanced Oil Recovery Method to Rock Typing

et al. 2020

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As a fixed reservoir rock property, pore throat size distribution (PSD) is known to affect the distribution of reservoir fluid saturation strongly. This study aims to investigate the relations between the PSD and the oil–water relative permeabilities of reservoir rock with a focus on the efficiency of surfactant–nanofluid flooding as an enhanced oil recovery (EOR) technique. For this purpose, mercury injection capillary pressure (MICP) tests were conducted on two core plugs with similar rock types (in respect to their flow zone index (FZI) values), which were selected among more than 20 core plugs, to examine the effectiveness of a surfactant–nanoparticle EOR method for reducing the amount of oil left behind after secondary core flooding experiments. Thus, interfacial tension (IFT) and contact angle measurements were carried out to determine the optimum concentrations of an anionic surfactant and silica nanoparticles (NPs) for core flooding experiments. Results of relative permeability tests showed that the PSDs could significantly affect the endpoints of the relative permeability curves, and a large amount of unswept oil could be recovered by flooding a mixture of the alpha olefin sulfonate (AOS) surfactant + silica NPs as an EOR solution. Results of core flooding tests indicated that the injection of AOS + NPs solution in tertiary mode could increase the post-water flooding oil recovery by up to 2.5% and 8.6% for the carbonate core plugs with homogeneous and heterogeneous PSDs, respectively.

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A mechanistic experimental study on the combined effect of Mg2+, Ca2+, and SO42- ions and a cationic surfactant in improving the surface properties of oil/water/rock system

Cited by 49 publications

References 51 publications

The effect of cationic surfactants on bitumen's viscosity and asphaltene nanostructure under thermal partial upgrading

The effect of cationic surfactants on bitumen's viscosity and asphaltene nanostructure under thermal partial upgrading

Insight into the Synergic Effect of Ultrasonic Waves, SDS Surfactant, and Silica Nanoparticles on Wettability Alteration of Carbonate Rocks

Insights into the Effects of Pore Size Distribution on the Flowing Behavior of Carbonate Rocks: Linking a Nano-Based Enhanced Oil Recovery Method to Rock Typing

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