... Abstract This paper contains the results of laboratory and field tests where the corrosion system was carbon steel exposed to oilfield brines containing dissolved carbon dioxide and oxygen. Both uninhibited and inhibited systems were examined. The results are analyzed and placed in context...

...) layers in capillary contact. Experiments were conducted in these systems by injecting CO, CO/brine, or CO/foam into core with different fluid saturations (brine, surfactant solution, and oil). The breakthrough time and incremental fluid recovery were recorded and compared. This study indicates that foam...

... for comparison. enhanced recovery upstream oil & gas equation modeling & simulation fugacity water compressibility hydrocarbon component formulation compositional model hydrocarbon phase solubility constraint viscosity flood brine correlation water viscosity compressibility...

... indicated the favorable fluid mobility in heterogeneous core samples when foaming agents were used. upstream oil & gas composite core flow velocity breakthrough capillary contact experiment surfactant solution enhanced recovery surfactant concentration brine flow in porous media...

... by simultaneous injection of surfactant solution and C0 2 into a brine-saturated core. In this study, the gas-liquid volumetric injection ratios of 2, 4, and 6 (with foam qualities of 66.7%, 80.0%, and 85.7%, respectively) were examined. The flow rate in terms of total interstitial velocity varied from 0.36...

... media laboratory study core sample brine spe 27729 upstream oil & gas foam mobility concentration flow rate surfactant concentration permeability pressure drop enhanced recovery united states government effect mobility control sedimentary rock rock type setup geologist chemical...

... for C0 2 -foam propagation is needed to satisfy the permanent adsorption. At surfactant concentrations below the CMC, the effectiveness of mobility reduction of C0 2 -foam as well as the amount of surfactant adsorption vary with the type of surfactant and its concentration in reservoir brine. Through...

... bicarbonate concentration corrosion rate chemical flooding methods enhanced recovery upstream oil & gas polymer inhibitor materials and corrosion flowline corrosion effectiveness corrosion control subsurface corrosion polarization curve injection corrosion inhibitor brine riser corrosion...

... or precipitate from crude oils or brines. The salt content of a core sample can be determined by petrographic study or by chemical tests. Examinations of thin sections of cores show not only how much halite [salt] is present, but also whether the halite is in the form of cementing material, individual crystals...