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黄河口凹陷北半环位于渤海湾盆地的渤中坳陷内,油气富集,构造复杂。系统分析该区构造样式及其演化规律有助于进一步把握勘探方向,研究表明,该区主要发育伸展构造样式和走滑构造样式两大类。新生界以来,主要经历了7次构造旋回,造成现今的构造格局。主要有利的油气聚集带在走滑断层两侧,其次在伸展构造上升盘发育有利圈闭,中浅层两盘都具有有利的油气圈闭。
The northern half-ring of the Yellow River Mouth Depression is located in the Bozhong Depression in the Bohai Bay Basin. Its hydrocarbon accumulation is complex and complex. Systematic analysis of the tectonic style of the area and its evolution rule will help to further explore the exploration direction. Studies have shown that there are two main types of extensional tectonic and strike-slip tectonic styles in this area. Since the Cenozoic, it has undergone seven major tectonic cycles that have led to the current tectonic framework. The main favorable hydrocarbon accumulation zone is on both sides of the strike-slip fault, followed by the development of favorable traps in the extensional structure ascending trays, and favorable oil and gas traps in both medium and shallow layers.