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- W1978891289 abstract "Abstract Foam is used in many oil recovery operations (gas mobility control, profile improvement, acidizing etc.). To date, modeling foam flow, specially transient foam flow, is still difficult. Foam viscosity depends strongly on its microstructure (texture), hence, one of the modeling approaches for foam flow in porous media can be done by a population balance equation, giving the bubble density number, that in turn gets included in a classical black oil simulator. Although this type of model produces excellent agreement between theory and laboratory experiments, the degree of difficulty in determining various parameters needed is too high to implement it in commercial simulators, This study shows a bubble population correlation based on experimental observations and theoretical results obtained at the pore scale (micromodels, network modeling) and at the core scale (transient foam flow in homogeneous and heterogeneous media). In this correlation, we express explicitly the evolution of the mobile bubble density, (the foam texture that governs foam viscosity) as a function of the physical properties of the porous medium (porosity, permeability and capillary pressure) and the evolution of the mobile gas saturation, This correlation has been rather easily implemented in a numerical simulator and the resulting set of data has been matched against results of transient experiments, performed under a CT scanner as well as experiments performed by two other research institutions. The match of the experimental data and the correlation result is excellent. The results have also been compared with a complete simulation using the population balance model. The agreement is excellent between the two types of models. This simplified formulation allows decoupling the effect of the porous media parameters such as porosity, permeability and capillary pressure from the effects caused by the surfactant, It conserves most of the benefits of the physics of foam flow as seen in the literature and allows simulation of heterogeneous porous media. P. 319" @default.
- W1978891289 created "2016-06-24" @default.
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- W1978891289 date "1998-09-27" @default.
- W1978891289 modified "2023-09-26" @default.
- W1978891289 title "Modeling Transient Foam Flow in Porous Media Using a Bubble Population Correlation" @default.
- W1978891289 doi "https://doi.org/10.2118/49020-ms" @default.
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