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In  this  research,  the  effects  of  the  following  factors  on   phase   behavior   of Oil/ASP solution were studied: Change of DDBSCa concentration in ASP solution on phase behavior of (Oil/ASP); Change of Na2CO3 concentration in ASP solution on phase behavior of (Oil/ASP) and Change  of Xanthan Gum concentration in ASP solution  on  phase  behavior  of  (oil /ASP) . Later The optimum concentrations of ASP components were restricted depending on phase behaviour The researcher has investigated this effect By studying change each of :oleic phase volume (Voleic) that result of emulsification between the oil and ASP solution - ASP solution volume that form emulsifier (Vd) .   By relationship with (VASP%) which means : the percentage of ASP solution volume that added to the total volume (Oil+ASP solution) . The results referred to the following : the Miscibility of (ASP Oil) is affected strongly by components concentration of ASP solution. Also, The optimum concentrations of ASP solution components that achieve successful ASP flooding depending on phase behavior are compatible with the concentrations that I found from my previous studies that achieved : minimum interfacial tension at minimum concentration (regarding surfactant and alkaline). Maximum viscosity compatible with oil viscosity of the studied oil field (regarding the polymer).

Effect of Components Concentration of ASP Chemical Flooding Solution on the Phase Behavior (Oil/ASP