Effect of Surfactant Concentration on Foam
From Coreflood Experiments to Implicit-Texture Foam-Model Parameters
S.A. Jones (TU Delft - Reservoir Engineering)
S. Vincent Vincent-Bonnieu (Shell Global Solutions International B.V., TU Delft - Reservoir Engineering)
Rouhollah Farajzadeh (Shell Global Solutions International B.V., TU Delft - Reservoir Engineering)
W.R. Rossen (TU Delft - Reservoir Engineering)
More Info
expand_more
Other than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons.
Abstract
We present a comparative study of foam coreflood experiments with various surfactant concentrations. Plots of apparent viscosity vs. injected gas fraction were obtained for surfactant concentrations at the critical micelle concentration and above. Bulk foam stability was measured for all concentrations and compared with the coreflood results. There were different responses to surfactant concentration in bulk and in corefloods. The coreflood results were matched with an implicit-texture foam model, and the dependency of the model parameters on the surfactant concentration is discussed. Fitting the data requires relating the surfactant concentration to the dry-out function or the limiting capillary pressure.
help_outline