隐蔽油气藏中“四性关系”的复杂性及综合评价方法

Complexity Relationships of Reservoir's Four-character in Subtle Hydrocarbon Traps and its Evaluating Method

以低幅度型隐蔽油藏及位于构造运动活跃区的隐蔽油气藏为研究对象,通过综合分析其构造演化特征、成藏动力及储层非均质特征,研究了此类油藏中的油水分布规律及控制因素。并在此基础上通过理论计算及建立地层压力预测模型,提出了准确评价此类油藏的2种辅助方法:临界油柱高度计算法和地层压力预测法。

Considering the difficulty of evaluation and development in subtle hydrocarbon traps,two types of hydrocarbon heterogeneous distribution caused by reservoir heterogeneity were put forward.Hydrocarbon heterogeneous distribution caused serious problems,such as reservoir evaluation and development.Critical oil column heights calculating and formation pressure prediction are helpful to evaluate subtle hydrocarbon traps.