... Abstract A series of experiments were performed in order to study the applicability of polymer gels, polymer enhanced foams and foamed gels in environments that are relevant to Western Canadian reservoirs. The problem of plugging fractures in tight gas reservoirs was tackled first. Three...

... Abstract Foams are used for mobility control in Enhanced Oil Recovery operations involving injection of gases or steam. The ability of foams to lower the mobility of the vapor phase, under certain conditions, helps in reducing gravity override and channeling leading to improved sweep...

... bottomhole pressure gradient garrett yate petroleum company gas flow rate valve pbhp production monitoring foam drillstem/well testing reservoir surveillance gas column pressure oil column ACOUSTIC FOAM DEPRESSION TESTS J.MCCOY A.L.PODIO L.ROWLAND M.GARRETT Fthis article begins on the next page...

..., it is likely that a significant portion of the reservoir is bypassed due to gravity segregation and viscous fingering. One way to minimize such problems isthe injection of a foam. This paper investigates the viscous instability effects when solvent and foams of different viscosity are injected. The approach...

... Abstract An experiment involving a steam drive process with aqueous surfactant (foaming agent) solution and nitrogen gas has been performed in a large-scale 90 cm physical simulator (51.8 cm ID by 91.4 cm long) at reservoir conditions to test the effectiveness of foam on the recovery...

... Abstract There has been much interest in recent years in the application of mobility control foams to improve the sweep efficiency of steam and gas miscible EOR processing. While it seems to be well established that foams can reduce gas mobility in oil-free systems, the effect of an oil phase...

... Abstract Series of tests were carried out to examine the effect of several factors on the mobility of carbon dioxide/foaming agent coinjected in cores. These factors include the permeability of the porous media, the f low rate, the temperature, and the pressure. The latter two were selected so...

... Abstract This paper presets a new mathematical formulation chat provides a realistic and appropriate representation of foam behaviour in a porous medium. Foams are gaining increasing importance in the petroleum industry in a number of roles, notably as mobility control and/or blocking agents...

... Abstract This paper deals with a field application of foam forming surfactants injected into the Pembina Ostracod 'G' Pool to reduce the gas mobility and to improve sweep efficiency. The presentation describes the laboratory evaluation of a number of surfactants considered to be suitable...

... into. gilwood sand reservoir upstream oil & gas petroleum society light oil high salinity structural geology hardness foam salinity enhanced recovery application gilwood sand pool technical meeting gas injection method reservoir characterization beaverhill lake carbonate surfactant mobility...

... all applications is the large disparity between the relatively high mobility of injected gases and the mobility of reservoir fluids, The development of gas fingers results in early gas breakthrough which necessitates expensive reinjection of produced gases. Application of foam forming surfactants...

... are related to theability of the surfactant to temporarily stabilize a foam with either steam or a non-condensible gas phase, The foam acts to divert the steam to the nswept zones of the core, thereby increasing bitumen recovery. Introduction Over the last several years, the use of surfactants (either...

... Abstract This paper deals with experimental evaluation of the effect of residual oil on the mobility reduction capabilities of foams at high temperature. Foam floods were carried out in 30 cm long, 5.6 cm diameter sand cores containing steamflood residual saturations of heavy crude oils...

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... in the development reality. The increasing cost per foot of of foam to extend the application of the air hole for the operators gave impetus to the techniques in locales where water influx and development of techniques which would in- hole enlargement would otherwise preclude crease penetration rates, thereby...