The reservoir forming regulars of Cretaceous, which are determined from the analysis of petroleum system, are as follows: Arshan Formation and Member I of Tengger Formation are main source ...

• 发育多种油藏类型并在凹陷的不同部位有规律的分布。在总结成藏规律、盆地模拟及勘探实践的基础上，对凹陷的优选、勘探程序提出了建议。