The Study On Property Evaluation And Injection Improvement For Foam System

In the research on foaming system recipe for the process after polymer- flooding, we found that applying the existent method and parameters, which testing interfacial tension and foaming composite index, are not enough, for they can not give a clean illustration on property differences and displacing effects for different sysems. Through lots of lab experiments, we decide new method and the relevent parameters which can evaluate system foaming and flowing characteristics accurately. It is proved that the new device designed and produced by ourselves, meet the need of evaluation . And we succeed in choosing foaming system recipe by applying new parameters. We also Optimize injection method and parameters, the injection ratio and rate of gas and liqiud, and ASP combination. All of these can provide effective guidance for field pilot.