Kinetics and mechanism of shear banding in an entangled micellar solution

A systematic rheological study of alkyl amine surfactants for fluid mobility control in hydrocarbon reservoirs

“…Similar temperature effects are reported for other aminebased surfactants where wormlike micelles can spontaneously form at ambient temperatures based on the addition of salts, counterions, cosurfactants, surfactant mixtures, block copolymers, and/or organic solvents to the solution (Berret 2006;Hu and Lips 2005;Li et al 2011;Rabie and Nasr-El-Din 2015;Shashkina et al 2005;Wang et al 2012). In particular, as temperature increases, the viscosity initially rises to an inflection point then begins degrading afterward and this process can repeat at higher temperatures (Rabie and Nasr-El-Din 2015).…”

“…According to , shear banding and shear-thinning behavior are the result of the existence of wormlike micelles due to the dynamics of relaxation, breakage and recombination of the micellar structure as well as the alignment of the chains and disentanglement with respect to the flow gradient (Hu and Lips 2005;. These listed references provide more information about the relation between shear banding and wormlike micelle structures Calabrese et al 2015;Cappelaere and Cressely 1997;Delgado et al 2009;Dhont and Briels 2008;Fardin et al 2015;Helgeson et al 2009;Hu and Lips 2005;Hu et al 2008;Liberatore et al 2009;Manneville 2008;Miller and Rothstein 2007;Pipe et al 2010;Thareja et al 2011;Yesilata et al 2006).…”

Slippage and migration in Taylor–Couette flow of a model for dilute wormlike micellar solutions

“…The generic trends observed in the flow curve discussed above are typical of results of experimental measurements of wormlike micellar solutions which exhibit shear banding and turbidity [17,21]. The shear banding behavior and increasing turbidity occur in the intermediate shear-rate region when the stress plateaus.…”

“…This situation may be considerably different in the case of a torsional shear flow such as a cone-plate or Taylor-Couette flow, due to the effects of spatial curvature. Experiments definitely suggest [32,21,17] that shear layers first form near the inner wall where the curvature is highest.…”

“…Second and of more interest to the present study, the flow curve of steady shear stress versus shear rate presents a distinct plateau [3,4]. Flow visualization of micellar solutions in this plateau region shows the formation of shear-bands [20,32,21,22] [17,16]. A number of models have been proposed to explain these phenomena.…”