Modeling investigation of low salinity water injection in sandstones and carbonates: Effect of Na+ and SO42−

Esene, Cleverson; Onalo, David; Zendehboudi, Sohrab; James, Lesley; Aborig, Amer; Butt, Stephen

doi:10.1016/j.fuel.2018.05.161

Cited by 62 publications

(18 citation statements)

References 22 publications

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“…It seems that the complexity of crude oil is partly the origin of inconsistent observations obtained in experiments concerning brine injection 36 . Moreover, the presence of ions in brine is also a matter of interest which intensifies the complexity of calcite/oil/brine system 37 . The occupation of available sites at calcite/brine interface by electrolyte ions can either drives the surface less or more water-wet depending on the ions 38 , 39 .…”

Section: Introductionmentioning

confidence: 99%

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Atomistic insight into salinity dependent preferential binding of polar aromatics to calcite/brine interface: implications to low salinity waterflooding

Koleini

Badizad

Mahani

et al. 2021

Sci Rep

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This paper resolve the salinity-dependent interactions of polar components of crude oil at calcite-brine interface in atomic resolution. Molecular dynamics simulations carried out on the present study showed that ordered water monolayers develop immediate to a calcite substrate in contact with a saline solution. Carboxylic compounds, herein represented by benzoic acid (BA), penetrate into those hydration layers and directly linking to the calcite surface. Through a mechanism termed screening effect, development of hydrogen bonding between –COOH functional groups of BA and carbonate groups is inhibited by formation of a positively-charged Na+ layer over CaCO3 surface. Contrary to the common perception, a sodium-depleted solution potentially intensifies surface adsorption of polar hydrocarbons onto carbonate substrates; thus, shifting wetting characteristic to hydrophobic condition. In the context of enhanced oil recovery, an ion-engineered waterflooding would be more effective than injecting a solely diluted saltwater.

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Section: Introductionmentioning

confidence: 99%

“…The occupation of available sites at calcite/brine interface by electrolyte ions can either drives the surface less or more water-wet depending on the ions 38 , 39 . Some of the impacts of ions include ion-exchange 37 , 40 , pinning point 41 and screening effect 42 which diversely alter rock wettability.…”

Section: Introductionmentioning

confidence: 99%

Atomistic insight into salinity dependent preferential binding of polar aromatics to calcite/brine interface: implications to low salinity waterflooding

Koleini

Badizad

Mahani

et al. 2021

Sci Rep

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show abstract

“…Esene et al stated the similar conclusion that the contribution of rock dissolution to oil recovery is not significant, and the main driving mechanism is wettability alteration to a more water wet condition. 57 …”

Section: Results and Discussionmentioning

confidence: 99%

Effects of Slug Size, Soaking, and Injection Schemes on the Performance of Controlled Ions Water Flooding in Carbonates

et al. 2020

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The results of many previous studies on low salinity/controlled ions water (CIW) flooding suggest that future laboratory and modeling investigations are required to comprehensively understand and interpret the achieved observations. In this work, the aim is co-optimization of the length of the injected slug and soaking time in the CIW flooding process. Furthermore, the possibility of the occurrence of several governing mechanisms is studied. Therefore, the experimental results were utilized to develop a compositional model, using CMG GEM software, in order to obtain the relative permeability curves by history matching. It was concluded that CIW slug injection, concentrated in the potential-determining ion, can increase oil recovery under a multi ion exchange (MIE) mechanism. The wettability of the carbonate rocks was changed from a mixed or oil wet state toward more water wetness. However, there is a CIW slug length, beyond which extending the length does not significantly improve the rock wettability, and consequently, the oil production, which is known as the optimum slug size. This implies that the optimization of the injection process, by minimizing the slug size, can decrease the need for the CIW supply, therefore lowering the process expenditure. Moreover, if the exposure time of the rock and CIW is increased (soaking), a higher level of ion substitution is probable, leading to more oil detachment and production. Rock dissolution/precipitation (leading to a pH change) was found to have a negligible contribution.

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“…Therefore, other efficient mechanisms, for say wettability alteration, are expected to enhance oil recovery in those reservoirs [4,9,10]. Different processes of wettability alteration for EOR have been studied, including surfactant flooding [11][12][13][14][15], surfactant-alkaline flooding [16][17][18][19], microemulsion flooding [20], nanoparticle (NP) applications [21][22][23][24][25], hot urea solutions B Saeid Norouzi-Apourvari snorouzi@uk.ac.ir 1 Department of Petroleum Engineering, Shahid Bahonar University of Kerman, Kerman, Iran [26], and low-salinity waterflooding [27][28][29]. A general discussion of materials and methods employed in wettability alteration was studied by Mohammed and Babadagli [30].…”

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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Modeling investigation of low salinity water injection in sandstones and carbonates: Effect of Na+ and SO42−

Cited by 62 publications

References 22 publications

Atomistic insight into salinity dependent preferential binding of polar aromatics to calcite/brine interface: implications to low salinity waterflooding

Atomistic insight into salinity dependent preferential binding of polar aromatics to calcite/brine interface: implications to low salinity waterflooding

Effects of Slug Size, Soaking, and Injection Schemes on the Performance of Controlled Ions Water Flooding in Carbonates

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

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