Bozhong area has different oil-gas accumulation characteristics from the adjace nt onshore oil fields.Because of the latter thermal event and tectonic action,Bo zhong area became the subsidence center and depo-center of the Bohai Bay Basin.

• 其具有不同于周边陆地油田的油气成藏特点，晚期的热沉降和构造活动使其成为渤海湾盆地的沉降和沉积中心，上第三系具有优于周边陆地油田的良好的储盖条件，晚期的构造活动与油气主要排烃期相匹配，为油气向上第三系圈闭中运聚提供了良好条件。