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利用俄罗斯测井系列的测井曲线,在建立孔隙度、渗透率、饱和度、泥质含量等参数的测井解释模型基础上,系统评价了尤罗勃钦油田的碳酸盐岩储层。针对该区碳酸盐岩储层双重孔隙介质的特点,结合试油资料建立了识别储层类型、裂缝性质、泥岩夹层和致密层的测井评价参数,以此为依据把储层分为基岩型、微裂缝型和大裂缝型3大类,指出裂缝型储层发育方向在平面上是NE—SW向和NW—SE向,分别与尤罗勃钦组、多尔戈克金组和库尤姆宾组的白云岩分布和古潜山构造发育方向一致;纵向上裂缝和大裂缝储层发育段厚度一般在距剥蚀面以下0～100m,与白云岩溶蚀带发育一致。钻井揭示的裂缝型储层发育段控制了该区的油气分布,但其分布极不均匀。
Based on the well logging data from the well logging series in Russia, the carbonate reservoir of the Yububin Oilfield was systematically evaluated based on the log interpretation model of porosity, permeability, saturation and shale content. According to the characteristics of double porosity media of carbonate reservoir in this area, the logging evaluation parameters that identify the types of reservoirs, the nature of fractures, the interbedded mudstone and the densified layer are established based on the test oil data. Based on this, Rock type, microcrack type and macrofracture type. It is pointed out that the development direction of fractured reservoirs is NE-SW direction and NW-SE direction in the plane, which are respectively associated with the Youluobin group, the Dolgok gold group, The dolomite distribution in the Kuyupun Formation is consistent with the tectonic development of the buried hill. The thickness of the longitudinal and upper fractures is generally 0-100 m below the surface of the eroded surface, consistent with the development of the dolomitic dissolution zone. The fractured reservoirs developed in the well control the distribution of oil and gas in this area, but their distribution is extremely uneven.