Characterization of foam flowing in a granular medium in the presence of oil by small angle neutron scattering

Poryles, Raphaël; Chevalier, Thibaud; Gland, N.; Rosenberg, Elisabeth; Barré, Loı̈c

doi:10.1039/c9sm01936g

Cited by 7 publications

(7 citation statements)

References 47 publications

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“…An other approach would be to go towards direct applications, for instance by investigating the influence of oil on the foam invasion, and compare results to those obtained by neutron scattering 47 .…”

Section: Discussionmentioning

confidence: 99%

Foam trapping in a 3D porous medium: in situ observations by ultra-fast X-ray microtomography

et al. 2020

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Section: Discussionmentioning

confidence: 99%

Foam trapping in a 3D porous medium: in situ observations by ultra-fast X-ray microtomography

et al. 2020

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“…While several examples dealing with the analysis of SANS data from liquid foams can be found in the literature [40][41][42][43][44][45][46]48,49 , this is the first example of a quantitative analysis, in absolute scale, of the scattering data recorded from liquid foams. The fitting procedure was done considering a film roughness of σ = 1.5 nm.…”

Section: Contribution Of Lamellaementioning

confidence: 96%

“…In-situ foam film thickness measurement is possible performing small-angle neutron scattering (SANS) [40][41][42][43][44][45][46][47][48][49] . SANS data also provide information on the internal structure of the foam solution over a large length scale.…”

Section: Introductionmentioning

confidence: 99%

Foam aging under free drainage analysed using associated operando techniques

Lamolinairie

Dollet

Bridot³

et al. 2022

Preprint

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Liquid foams are multi-scale structures whose structural characterization requires the combination of very different techniques. This inherently complex task is made more difficult by the fact that foams are also intrinsically unstable systems and that their properties are highly dependent on the production protocol and sample container. To tackle these issues, a new device has been developed that enables the simultaneous time-resolved investigation of foams by small-angle neutron scattering (SANS), electrical conductivity, and bubbles imaging. This device allows the characterization of the foam and its aging from nanometer up to centimeter scale on a single experiment. A specific SANS model was developed to quantitatively adjust the scattering intensity from the dry foam. Structural features such as the liquid fraction, specific surface area of the Plateau borders and inter-bubble films, thin film thickness were deduced from this analysis and some of them compared with extracted from the other applied techniques. This approach has been applied to a surfactant-stabilized liquid foam under free drainage and the underlying foam destabilization mechanisms were discussed with unprecedented detail. For example, the information extracted from the image analysis and SANS data allow for the first time to determine the disjoining pressure vs thickness isotherm in a real, draining foam.

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“…The smaller of C s and P c * , the greater of the foam natural-coalescence rate. Laboratory experiments show that the existence of the oil phase decreases the foam stability (Poryles et al, 2020;Rattanaudom et al, 2020;Skauge et al, 2020). As oil saturation increases, the molar concentration of foam in the gas phase decreases noticeably.…”

Section: Net Foam Generation Ratementioning

confidence: 99%

Study on the regional characteristics during foam flooding by population balance model

Wei

et al. 2020

Energy Exploration & Exploitation

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Foam flooding is an effective method for enhancing oil recovery in high water-cut reservoirs and unconventional reservoirs. It is a dynamic process that includes foam generation and coalescence when foam flows through porous media. In this study, a foam flooding simulation model was established based on the population balance model. The stabilizing effect of the polymer and the coalescence characteristics when foam encounters oil were considered. The numerical simulation model was fitted and verified through a one-dimensional displacement experiment. The pressure difference across the sand pack in single foam flooding and polymer-enhanced foam flooding both agree well with the simulation results. Based on the numerical simulation, the foam distribution characteristics in different cases were studied. The results show that there are three zones during foam flooding: the foam growth zone, stable zone, and decay zone. These characteristics are mainly influenced by the adsorption of surfactant, the gas–liquid ratio, the injection rate, and the injection scheme. The oil recovery of polymer-enhanced foam flooding is estimated to be 5.85% more than that of single foam flooding. Moreover, the growth zone and decay zone in three dimensions are considerably wider than in the one-dimensional model. In addition, the slug volume influences the oil recovery the most in the foam enhanced foam flooding, followed by the oil viscosity and gas-liquid ratio. The established model can describe the dynamic change process of foam, and can thus track the foam distribution underground and aid in optimization of the injection strategies during foam flooding.

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Characterization of foam flowing in a granular medium in the presence of oil by small angle neutron scattering

Abstract: We present an experimental study of foam-flow characterization inside a 3D granular media packed in a cell. We show that flow behavior is related to foam microstructure.

Cited by 7 publications

References 47 publications

Foam trapping in a 3D porous medium: in situ observations by ultra-fast X-ray microtomography

Foam trapping in a 3D porous medium: in situ observations by ultra-fast X-ray microtomography

Foam aging under free drainage analysed using associated operando techniques

Study on the regional characteristics during foam flooding by population balance model

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