Potential applications of cyclodextrins in enhanced oil recovery

Lara, Lucas Stori de; Voltatoni, Thiago; Rodrigues, Manuella Caramelo; Miranda, Caetano R.; Brochsztain, Sergio

doi:10.1016/j.colsurfa.2014.12.045

Cited by 21 publications

(12 citation statements)

References 49 publications

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“…Adsorption of surfactant plays an important role on wettability alteration of reservoir rock surface [18][19][20]. In a recent study Stori de Lara et al [21] have described the effect of cyclodextrin on contact angle and its potential application in enhanced oil recovery. They reported that cyclodextrin is suitable candidate for changing wettability of quartz with the oleic phase of dodecane.…”

Section: Introductionmentioning

confidence: 98%

Studies on interfacial tension and contact angle of synthesized surfactant and polymeric from castor oil for enhanced oil recovery

Babu

Pal

Bera

et al. 2015

Applied Surface Science

149

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Section: Introductionmentioning

confidence: 98%

Studies on interfacial tension and contact angle of synthesized surfactant and polymeric from castor oil for enhanced oil recovery

Babu

Pal

Bera

et al. 2015

Applied Surface Science

149

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“…[44,57,60,162] Note that these theoretical results have practical implications, in particular they suggest the pore-size dependent correction for parameters for the Gassmann equation often used by practitioners. The dependence of fluid compressibility on the pore surface properties could be important for processes such as enhanced oil recovery, or carbon dioxide sequestration, which cause the surface modifications of the geological porous media [172,173].…”

Section: Discussionmentioning

confidence: 99%

Elastic properties of confined fluids from molecular modeling to ultrasonic experiments on porous solids

Dobrzanski

Gurevich

Gor

2021

Applied Physics Reviews

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Fluids confined in nanopores are ubiquitous in nature and technology. In recent years, the interest in confined fluids has grown, driven by research on unconventional hydrocarbon resources -shale gas and shale oil, much of which are confined in nanopores. When fluids are confined in nanopores, many of their properties differ from those of the same fluid in the bulk. These properties include density, freezing point, transport coefficients, thermal expansion coefficient, and elastic properties. The elastic moduli of a fluid confined in the pores contribute to the overall elasticity of the fluid-saturated porous medium and determine the speed at which elastic waves traverse through the medium. Wave propagation in fluid-saturated porous media is pivotal for geophysics, as elastic waves are used for characterization of formations and rock samples. In this paper, we present a comprehensive review of experimental works on wave propagation in fluid-saturated nanoporous media, as well as theoretical works focused on calculation of compressibility of fluids in confinement. We discuss models that bridge the gap between experiments and theory, revealing a number of open questions that are both fundamental and applied in nature. While some results were demonstrated both experimentally and theoretically (e.g. the pressure dependence of compressibility of fluids), others were theoretically predicted, but not verified in experiments (e.g. linear scaling of modulus with the pore size). Therefore, there is a demand for the combined experimental-modeling studies on porous samples with various characteristic pore sizes. The extension of molecular simulation studies from simple model fluids to the more complex molecular fluids is another open area of practical interest.

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“…To analyze the ion distribution between platelets, the atomic density, ρ( z ), and the charge density profile, μ( z ), are obtained along the direction perpendicular to the MMT–brine interface ( z -axis). As in previous publications, − μ( z ) is determined by where F is the Faraday constant and σ s = 0.5 e/nm 2 is the local surface charge density. The charge distribution along the z direction is given by c +,– ( z ) = Nq +,– ( z ) A Δ z , wherein A and Δ z are the area and thickness of the slabs, respectively, N is the number of slabs, and q +,– ( z ) is the number of the positive/negative charges within the slab.…”

Section: Methodsmentioning

confidence: 99%

Controlling Clay Swelling–Shrinkage with Inorganic Nanoparticles: A Molecular Dynamics Study

2017

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The control of clay swelling can be achieved by using nanoparticles. This paper describes the use of atomistic molecular dynamics simulations to study the interaction of SiO2 nanoparticles (NPs) with Na-montmorillonite (MMT) clay platelets. The NPs@MMT interfaces were simulated by taking into account different aqueous solutions (NaCl and CaCl2) and three different coverages for NPs (hydroxylated, PEGlyated, and sulfonated). The formation of electric double layers (EDL) was observed on the NP and MMT surfaces. The free energies as a function of the NP–platelet distance were determined for each interface, while global minima near MMT surfaces and local minima in the middle path were observed. The presence of NPs in the local (dispersed) or global energy minima (adsorbed) leads to a broadening and compressing of the EDLs, respectively. Accordingly, a mechanism for this swelling–shrinkage can be proposed, based on changes in the EDLs caused by NPs. Because of overlap between the EDLs, for the adsorbed NP the ion accumulation on the MMT surface increases, resulting in an attractive potential and compression of the clay. This MMT swelling–shrinkage transition leads to interplatelet distance changes of ∼20%, which is consistent with the results of previous studies. These indicate an effective way to use NPs to tune clay swelling inhibition.

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Potential applications of cyclodextrins in enhanced oil recovery

Cited by 21 publications

References 49 publications

Studies on interfacial tension and contact angle of synthesized surfactant and polymeric from castor oil for enhanced oil recovery

Studies on interfacial tension and contact angle of synthesized surfactant and polymeric from castor oil for enhanced oil recovery

Elastic properties of confined fluids from molecular modeling to ultrasonic experiments on porous solids

Controlling Clay Swelling–Shrinkage with Inorganic Nanoparticles: A Molecular Dynamics Study

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