Fracture-cavity type carbonate reservoir is different from sandstone reservoir, with a great difference in water flooding effect in different wells. Some wells response well to water injection, while some observe sudden water breakthrough due to water injection. So far there is no proper method to scientifically evaluate the effect of water injection in fracture-cavity carbonate reservoir. Considering the effect evaluation of water injection in fracture-cavity units of Tahe Oilfield in Xinjiang, a method of effect evaluation is proposed. Response pattern is revealed considering single well fracture-cavity body of different types. Development models of injection and production within one layer, injection in fracture and production in cavity and low injection and high production are proposed. The research provides scientific guidance for development of fracture-cavity carbonate reservoir.%缝洞型碳酸盐岩油藏与砂岩油藏不同,井与井之间注水效果差异大,注水后有的井效果显著,有的井因注水而暴性水淹,如何科学评价缝洞型油藏注水效果至今没有适合的方法.针对新疆塔河油田缝洞单元开展了注水效果评价研究,首次提出了注水效果评价方法,针对不同类型单井缝洞体,揭示了注水受效规律,提出了同层注采、缝注洞采、低注高采的开发模式,科学指导了此类油藏的开发.
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