Selection of Oil Displacement Agent and Performance Evaluation for Foam Complex System

DIGEST: With the Interfacial tension test, researched the active agent interface behavior of HXJ-1 and HXJ-2.Test study indicates that the alkali concentration less than 0.6% and 1.2% respectively, the active agent HXJ-and HXJ-2 can form ultralow interfacial tension, besides the area of ultralow interfacial tension formed by HXJ-1 is larger than HXJ-2. As can be seen from the chorogram chart of foam composite index, without alkali and polymer, the two kinds of surface active agent generate the foam composite index similarly in the different density of active agent. The exist of alkali is not effect positively for the formation of super foam in the system, and adding appropriate (