莺歌海盆地受多幕沉降和多期热事件的背景控制 ,其地层流体压力演化也具有振荡性演化特征 .古流体压力模拟和各种“热”指标、流体包裹体和甲烷碳同位素组成综合分析表明 ,在中央流体底辟带因异常超压封存箱破裂 ,不仅在中浅层形成了大规模的油气聚集 ,而且因古压力的自波振荡 ,在中深层也可能发育早期天然气成藏空间 Yinggehai Basin is controlled by multi-curtain subsidence and multi-stage thermal events, and the evolution of formation fluid pressure also has oscillatory evolution characteristics. Paleo-fluid pressure simulation and various “hot” indicators, fluid inclusions and methane carbon isotope composition The analysis shows that in the central fluid dyke zone, due to the abnormal overpressure compression box rupture, not only the large-scale accumulation of oil and gas is formed in the middle and shallow layers, but also the early natural gas accumulation space may also develop in the middle and deep layers due to the auto-wave oscillation of paleo-pressure