Effects of foam quality and flow rate on CO_2-foam behavior at reservoir conditions

摘要

This paper reports a series of steady-state CO_2-foam flow experiments performed at reservoir conditions of 101 degree-F and 2100 psig. The effects of foam quality and flow rate on foam flow behavior were investigated. The foam experiments were conducted by injecting CO_2 and surfactant solution simultaneously into a core saturated with surfactant solution at various total flow rates and foam qualities (CO_2 fractions). A commercial surfactant (Chaser~TM CD 1045) was used at 2500 ppm concentration in a 4 wt