... performed by changing the injection rate and surfactant concentrations at evaluated conditions. Four displacement experiments of seawater/oil and surfactant solution/oil were performed using oil-wet carbonate cores to obtain the relationship between the residual oil saturation vs. the capillary number...

... solution at 90 °C was conducted to ensure their adaption to harsh reservoir conditions. Also, the effects of silica nanoparticles on the IFT and emulsion stability of the surfactant solution as well as wettability of reservoir rock were evaluated to determine the optimum concentration of nanoparticles...

... compared. Upstream Oil & Gas enhanced recovery pore microscope tightsand flow in porous media experiment oil drop growth rate Oil Recovery permeability surfactant core surface society of petroleum engineers Fluid Dynamics imbibition surfactant solution dynamic imbibition...

... recovery. In this study, 16 surfactant samples were screened aiming at an Arabian carbonate reservoir, among which 3 surfactant samples were selected for spontaneous imbibition experiments using Amott cells at 95°C. The experimental results presented the imbibition was induced by the surfactant solutions...

... of Berea sandstone was oriented either parallel or perpendicular to flow. The transient foam flow in cores containing a surfactant solution exhibits a front-like character. The secondary liquid desaturation reported previously is barely modified by increasing foam quality and leads to the same final...

... simultaneously. Once gas breakthrough occurs, continuous injection of the surfactant solution begins. Breakthrough usually takes about one to two minutes. Terminating an Experiment During an experiment the signals from the pressure transducers are observed for onset of foaming. An experiment was stopped...