高邮凹陷深大断裂与油气的关系

Relationships of Discordogenic Faults with Hydrocarbon in Gaoyou Depression

以苏北盆地高邮凹陷为例,分析了深大断裂对沉积、构造以及流体势场的控制作用,认为深大断裂不仅控制了油气藏形成条件的生、储、盖因素,还控制了运移与聚集因素。重点分析了高邮凹陷边界大断裂对油气运聚的作用,指出深大断裂不仅控制了含油气盆地油气藏的平面分布特征,而且控制了纵向上油气性质的分布。

By using Gaoyou Depression in Subei Basin as an example, the constrains of discordogenic faults to deposit , structure and potential field of fluid are analyzed. It is considered that the discordogenic faults not only control the factors of source, reserve and cap-rock, also control the factors of migration and accumulation. Effect of the big boundary fault in Gaoyou Depression on oil & gas migration and accumulation is emphatically analyzed. It is pointed out that the discordogenic faults not only control the reservoir plane distribution characters of the oil and gas bearing basin, but also control the vertical distribution of hydrocarbon properties.