DOI: 10.36347/sjpms

Pages: 33-36

In order to determine the injection parameters of class Ⅱreservoir, according to the laboratory physical simulation experiments, numerical simulation and analysis of field data, study the geological features, sedimentary characteristics, polymer injection object of class Ⅱ reservoir in the middle of the third southern district, conduct a series of pilot field tests of polymer injection. Through mathematical modeling and history matching method, study the displacement effect influenced by polymer molecular weight, polymer concentration, slug size and injection speed. The results show that class Ⅱ reservoir in the middle of the third southern district can be configured and diluted with water. The molecular weight is 700-950 ten thousand, the concentration is 1100mg / L, the injection speed is 0.2PV/a, the injection slug is 0.64PV.