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针对太古界变质岩储层岩性复杂、储集空间多样等特点,提出了一套适合该类油藏储层测井评价方法。首先根据岩石体积模型原理,采用最优化算法建立多矿物岩性模型;在识别岩性基础上,进行储层识别和划分;利用成像资料刻度裂缝孔隙度参数,采用双孔隙度算法计算储层的含油饱和度。用该套方法评价胜利油田变质岩地层,效果显著。
Aiming at the complex lithology and diverse reservoir space of metamorphic metamorphic rocks in the Archean, a set of well logging evaluation methods suitable for this type of reservoir is proposed. First, according to the principle of rock volume model, a multi-mineral lithology model is established by using optimization algorithm. On the basis of identifying lithology, reservoir identification and division are carried out. Using imaging data to scale fracture porosity parameters and double porosity method to calculate reservoir Oil saturation. This set of methods to evaluate the Shengli oil field metamorphic rock formation, the effect is significant.