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针对中原胡状油田原油含蜡量高 ,胶质沥青质含量高 ,水矿化度高、Ca2 +、Mg2 +离子含量的特点 ,筛选出天然混合羧酸盐SD复合驱配方体系。现场单井吞吐和井组区块驱油试验都获得了成功并取得明显的经济效益 ,投入产出比为 1∶3— 5。
In view of the characteristics of high wax content, high content of colloid asphaltene, high water salinity and Ca2 +, Mg2 + content in crude oil field of Central Plains, natural mixed carboxylate SD composite flooding formula system was screened out. Site single-well throughput and oil well block flooding test have been successful and achieved significant economic benefits, input-output ratio of 1: 3-5.