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塔河油田缝洞型碳酸盐岩油藏埋深大、非均质性强,裂缝和溶洞连通关系复杂,储集空间大小悬殊,物性变化大。针对塔河油田缝洞型碳酸盐岩油藏的特点,初步分析了储层特点和裂缝、溶洞的连通类型和连通程度,讨论了弹性开发阶段和注水开发阶段的开发特征,分析了裂缝、溶洞在开发中的作用。
The fractured carbonate reservoirs in Tahe Oilfield are characterized by large buried depth and strong heterogeneity, and the complex relationship between fractures and karst caves. The reservoir space varies in size and the physical properties vary greatly. According to the characteristics of fractured carbonate reservoirs in Tahe Oilfield, the characteristics of reservoirs and the types and connectivity of fractures and caves are preliminarily analyzed. The developing characteristics of the phases of elastic development and waterflooding are discussed. The fractures, The role of the cave in development.