碳酸盐岩沉积相分析在飞仙关组鲕滩储层预测中的应用

Application of carbonate sedimentary facies analysis in the prediction of oolitic reservoir of Feixianguan Formation

碳酸盐岩是一类重要的储层。识别储层的有效方法是以层序地层等地质分析方法为主 ,以地震参数为辅。鲕粒滩的层序地层反射特征表现为S型或斜交叠置型。总体上极为致密的碳酸岩储层裂缝预测是油气富集区预测成功的关键 ,小断层识别是裂缝预测的有效手段。对SZ地区飞仙关组鲕滩储层的预测作了全面的分析并用于实际钻井部署 。

Carbonate rock is a very important kind of reservoir. The effective way for reservoir prediction is to base the reservoir discrimination on geologic methods such as sequence stratigraphy and supplement the results with seismic attribute analysis. Oolitic reservoir is characterized by sigmoid and shingled reflection configurations. The key to prediction of hydrocarbons in carbonate rocks is the description of fractures. The discrimination of minor faults facilitates the description of fractures. This paper presents an analysis of the prediction for oolitic reservoir of Feixianguan Formation in SZ area. The predicted results have been confirmed by drilling.