Three-dimensional basin and petroleum system modeling was conducted to investigate hydrocarbon generation, migration, and accumulation in the Iranian sector of the NW Persian Gulf. The presented basin model was developed based on seismic and well data covering an area of about 20,000 km² bounded by the base-Triassic and the present-day sea-floor. Hydrocarbon generation modeling uses newly developed discrete activation energy distributions for Albian source rocks. This study provides a key to the understanding of the Cretaceous-Tertiary petroleum systems and hints to the possible causes of exploration failure at few places. This can reduce future charge-related exploration risk in the region especially for the stratigraphic and combined structural-stratigraphic traps.

The modeling results indicate the major role of the Zagros orogeny on controlling burial and thermal evolution as well as hydrocarbon migration and accumulation. The Zagros orogeny and following reactivation of the deep-seated faults resulted in the creation of two depressions in the region hosting the main hydrocarbon generation kitchens for the Cretaceous source rocks. The direction of hydrocarbon migration and accumulation is mainly controlled by the kinematics of the structural highs. During the Late Cretaceous to Miocene, southward deepening of the basin directed most hydrocarbon migration towards the northern part. The latest phase of the tectonic activity during the Miocene and tilting and deepening of the horizons towards the NE resulted in changing the direction of hydrocarbon migration towards the southern part. The results show that the rather young petroleum accumulations related to the Late Miocene to recent Zagros movements can hardly been understood without considering filling of former structures and re-migration due to tectonic restructuring.

进行了三维盆地和石油系统建模，以调查西北波斯湾伊朗部分的油气产生，运移和聚集。所提出的盆地模型是根据地震和测井数据开发的，该数据覆盖了以三叠纪为基地和当今海底为界的约20,000 km ²的面积。碳氢化合物的生成模型使用新开发的离散的活化能分布来处理Albian源岩。这项研究为了解白垩纪-第三纪石油系统提供了关键，并暗示了在少数地方勘探失败的可能原因。这可以减少该地区未来与电荷相关的勘探风险，尤其是对于地层和组合构造-地层圈闭。

模拟结果表明，扎格罗斯造山带在控制埋藏和热演化以及油气运移和聚集方面起着重要作用。Zagros造山运动以及深层断层的重新活化导致在该地区形成了两个凹陷，这些凹陷容纳了白垩纪烃源岩的主要生烃厨房。碳氢化合物运移和聚集的方向主要受构造高点的运动学控制。在白垩纪晚期至中新世期间，盆地向南加深引导大部分油气运往北部。中新世期间构造活动的最新阶段，以及向东北向倾斜和加深的地层，导致了油气向南部运移的方向发生了变化。