Tazhong 45 reservoir, lying in the Middle-Upper Ordovician strata of Tazhong area, is a fluoritized carbonate reservoir.There exist many fluorite veins filled with crude oils in its reservoir bed.

• 摘要塔中45井油藏是位于塔中地区中上奥陶统碳酸盐岩地层中的一个油藏，其储层中发现有大量的被原油充填的萤石脉。