Title: Flooding efficiency Research on Alternative Injection of Chemical Water and Nitrogen in the Laboratory
Abstract: Taking Zhidan oilfield Fanchuan area as the research object,flooding efficiency of alternative injection of chemical water and nitrogen was studied in the laboratory.Final oil displacement efficiencies of different displacement patterns were analyzed and compared.The results show that the water flooding efficiency is 47.37%;chemical water flooding efficiency is 56.84%;pure gas flooding efficiency is 26.62%;flooding efficiency of alternative injection of water and gas is 58%;flooding efficiency of alternative injection of chemical water and gas is 69.62%;after alternative injection of water and gas,flooding efficiency of alternative injection of chemical water and gas is 73.43%,oil production increases by 15.43%.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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