... with highly polarizable polymer such as polyvinyl pyrrolidone (PVP) or Gum Arabic (GA). To mitigating their agglomeration, a secondary additive such as hydroxyethyl cellulose (HEC) polymer is also added to provide adequate steric repulsion for their propagation in porous media at high salinity brines...

... in the effluent was measured and validated with an analytical model to address the acid profile along the wormhole, which becomes an important aspect in understanding the flow of VES fluids in carbonate cores. Part of this study is to characterize the wormhole propagation expected from the acidizing process...

... to scale the laboratory data to field conditions. Based on a series of experimental measurements carried out in a upgraded model pipeline, our analysis suggests that compressibility and the appearance of a solid-like fracture at the front of the propagating pressure wave have to be taken into account...

... a minor role in the wormholing process. Fluid loss through the walls of the wormholes ultimately limits the distance to which wormholes can propagate. Because of this effect, laboratory linear core floods will give optimistic predictions of wormhole penetration distances. We developed a cylindrical flow...

... propagation multiphase flow mass transfer Fluid Dynamics immobile fluid phase 1997. Society of Petroleum Engineers ...

... media experiment permeability-dependent propagation brine propagation polymer solution upstream oil & gas retention pam solution polyacrylamide spe 28955 placement pam isolation united states government penetration reservoir symposium INTRODUCTION Polyacrylamides...

... oil is found to be a significant issue for the propagation of these gelants. The use of a phenol pre-flush of the formation is shown by numerical modeling to be a potentially viable solution for this problem. application phenol concentration polymer upstream oil & gas drilling fluid...

... reservoir characterization adsorption upstream oil & gas reservoir sand propagate flow in porous media mobility control ethoxylate surfactant enhanced recovery mineral molecule propagation foam experiment chemical flooding methods sodium dithionite fluid dynamics foam stability...

... efficiency and mobility control. Data are presented and discussed to show how such systems can be designed and what parameters to consider in maximizing chemical survivability, transport, and effectiveness. Effects such as consumption, ion exchange, precipitation, and propagation are discussed...

... Abstract Low shear injection of different-nature polymers through various sand and sandstone cores has been performed to study the specific influence of adsorption on polymer propagation and flow behavior. As predicted by the depletion layer theory, polymer propagates faster than brine through...