... considered. Among the chemical flooding methods, alkaline and surfactant flooding techniques are more important, partly because the chemicals involved are less expensive, and also much has been learnt from past experience in laboratory and field. The laboratory studies discussed consisted of surfactant...

... Abstract A new method is proposed for screening surfactants suitable for foam diversion purposes. Surfactant screening is an important task in the processes that involve the use of foam. Several screening methods have been developed, including static tests and porous media tests. However...

... period of foam injection. The liquid removal efficiencies are also compared against cases in which no foam is injected (base-cases). Foam shows excellent liquid removal compared to the base-cases. Results also show that the type and concentration of the surfactants used to generate the foam has a strong...

... controlled. Results show that most of the surfactants were interacting with oil and acid under certain shear rate. Only some specific surfactants (not used in the oil industy) resulted in more stable foam and best acid diverting jobs When water was followed by the acid job, most of the oil in the low...

.... The process is coupled with in situ generation foam. In order to generate foam, a particular fYPe of surfactant is chosen from a selection of a wide range of surfactants supplied by the service companies. While the design of the device that couples both these effects need to be optimized, initial series...

... wasfound to promote separation by dispersing the demulsifier and by promoting droplet coalescence. The experiments indicated that treating would only be slightly more difficult if a crude oil were transported as an oil in water emulsion containing an emulsifying surfactant. Introduction Oilfield...

... production monitoring south saskatchewan section reservoir surveillance drilling fluid management & disposal emulsion transportation viscous crude surfactant viscosity crude oil proportion suspension upstream oil & gas drilling fluids and materials flow metering production control two...

.... A surfactant is required to form the desired oil-in-water or oil-in-brine emulsion at the oil concentrations required for economic pipeline operation. In most of the previous studies, e.g. references I and 2, emulsions with small (less than 10 microns) drops have been prepared. These ‘stable’ emulsions cream...

... Abstract A study was undertaken to characterize the surfactants that stabilize emulsions occurring in enhanced recovery operations of heavy oil in Saskatchewan. Knowledge about the nature of the stabilizing compounds may help improve emulsion treating technologies and, ultimately, recovery...