Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 6 of 6 for “"Spontaneous imbibition"”.
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Surfactant-free Aluminum Silicate-based Nanofluids for Enhanced Oil Recovery from Austin Chalk Carbonate Reservoirs
… wettability towards water-wet enhances the spontaneous imbibition of water, resulting in improved oil recovery. In this study, a novel surfactant-free aluminum silicate-based nanofluid is synthesised and tested for its efficiency to alter the wettability of Austin Chalk carbonate rocks from …
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Chemical treatment and gas huff-n-puff for enhanced oil recovery in oil shale reservoirs
… interfacial tension measurements, and spontaneous imbibition experiments, was used to compare the performance of surfactants at reservoir conditions. Surfactant blends were compared with single surfactants, and the surfactant blends showed improved oil recovery compared to most single …
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Multiphase Flow at Small Scales
… of NOA81 to investigate viscously-unfavorable spontaneous imbibition dynamics within a strongly water-wet fractured micromodel, a process common in oil recovery from tight reservoirs. Our findings reveal the presence of film flow in both the matrix and the fracture, facilitating the …
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Interfacial Fluid Dynamics in Porous Media
… controlled surface properties. We then study the spontaneous imbibition of liquids in capillary tubes, where classical imbibition front slows with time. We propose a simple modification that renders imbibition constant-rate in capillary tubes and allows tuning of viscous dissipation; we use this …
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Fluid-fluid displacement in porous-media microfluidics
… model to simulate dynamic configurations, from spontaneous imbibition to wetting transition and interface pinch-off. We then experimentally study the shape of a moving interface in a capillary tube prewetted with the invading liquid. For viscously favorable displacements (when the invading fluid …
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Pore-scale dynamics of immiscible two-phase flow on porous and fractured media
… the reduction becomes less significant for both imbibition and drainage. The front of the bottom fingers is finally halted at a position near the inlet as the viscosity ratio increases to 10. Increasing the interfacial tension generally results in higher saturation of the wetting fluid. …