邵家洼陷区断裂构造及其对油气成藏的影响

邵家洼陷区是受张性及张扭性应力控制的箕状断陷区，断裂体系及活动特征的分析对该区沉积构造演化、圈闭类型及油气运聚规律研究具有重要意义。通过三维地震精细解释并结合断裂体系、油藏剖面等综合分析。论述了断裂构造对邵家洼陷区不同构造带上油气运移与聚集成藏的影响。研究表明洼陷区断裂活动从古生代持续至第四纪，多期断裂活动导致了断裂体系的复杂性和构造类型的多样性，基底断层的活动对该区油气生成与运聚起着重要的控制作用，其继承性活动又控制了上部区域性盖层中断层的发育。

Faulted structure and its effect on oil- gas reservoir forming in Shaojia Subsag area

Shaojia Subsag area belongs to dustpan- like fault depression one controlled by tension and transtension stress. The analysis of fault system and movement characteristics has important significance on the research of its sedimentary structure evolution , types of traps and rule of oil - gas migration and accumulation of this area. The effect of faulted structure on oil - gas migration, accumulation and reservoir forming was discussed at different structural belts in Shaojia Subsag area through fine 3D seismic interpretation combined with the comprehensive a-nalysis of the fault system and oil reservoir profile, etc. Research presents that fault movement in this area was sustained from Paleozoic to Quaternary period, the multi - stage fault movements caused the complexity of the fault system and diversity of the structure types. The movements of basement fault made an important role in the oil - gas generation, migration and accumulation. In addition, their successional movement controlled fault growth in upper regional caprocks.