Technical Research On ASP Flood For Class Ⅱ Reservoirs In The Western Fault Of B1 Region West Block

The western fault of B1 region west block as a demonstration of ASP flooding in class II reservoirs vertical upper number, and developmental differences in thickness, heterogeneity of severe. O n the plane, there are large differences in permeability and thickness distribution characteristics. After many years of water flooding, the remaining oil in the local area still enrichment, through tertiary oil recovery technologies further enhance oil recovery.ASP flooding enhancing oil displacement efficiency in the oilfield have been demonstrated. The western fault of B1 region, ASP flooding in class II reservoirs of industrial field test achieved better results, Obviously saw the incremental oil effect. But mining reservoirs is the class II reservoirs full of petrol physical property. For more poor reservoir properties, stronger heterogeneity of ASP flooding in class II reservoirs effect is unclear. Matching formulas and injection parameters of ASP flooding also needs further study.In this paper, the western fault of B1 region west block ASP system in class II reservoirs flooding experiment, primary study on optimization of the formula of ASP system, and to evaluate the effects of ASP flooding, as well as its matching formula for ASP system and study on the injection parameters. Through laboratory experiments and physical simulation experiments on the block of ASP system of physical and chemical properties and oil displacement formula different flooding performance evaluation, and gives the best recipe. Understanding achieved by the project for the western fault of B1 region west block development program provides a strong scientific basis. Meanwhile, the Daqing oil field has important significance to further enhance oil recovery.