苏北盆地洪泽凹陷油气地质特征及下步勘探领域

Oil and Gas Geological Features and Next Step Exploration Domain in Hongze Depression In Subei Basin

洪泽凹陷为一典型的箕状凹陷,根据其特点将该凹陷及其次凹分为陡断带、深凹带、中部断裂构造带(或枢纽带)和缓坡带4个构造单元。在系统总结洪泽凹陷生储盖发育及组合特点基础上,阐述了油藏发育类型、分布与4个构造单元的相互关系,指出了洪泽凹陷下步的勘探领域和方向。

Hongze Sag is a typical dustpan depression.According to its features,the Sag and its sub-Sags are classified into four structural units: steep fractured zone,deep depression zone,middle fractured structural zone(or hinge zone) and gentle slope.Based on the systematical summarization of the development and combination features of Hongze Sag generation,accumulation and overlaying,the paper has described the reservoir development types,distribution and the interrelations between the four structural units,and pointed out the next step exploration domain and direction for Hongze Sag.