物源-沉积体系是原始储层物性的主要影响因素,与源区构造背景的综合分析是油气勘探工作的基础.北黄海盆地是位于苏鲁造山带-临津江造山带北侧中朝板块上中-新生代转换伸展断陷盆地.地震和钻井资料证实东部坳陷西南部有中-上侏罗统三角洲砂体发育.岩心和测井上可识别的沉积类型包括分流河道、决口扇、河口坝和远砂坝等,地震反射结构显示出来自西南方向的沉积物进积.砂岩样品的岩矿组成显示,碎屑中存在花岗质成分和酸性火山岩成分.泥岩元素地球化学特征显示其物质成分以长英质为主,推测源区为克拉通或再旋回造山带.砂岩Dickinson图解表明,不仅存在来自克拉通或再旋回造山带的成分,而且存在火山弧造山带的成分.综合分析认为,北黄海盆地东部坳陷西南物源区为再旋回造山带,花岗质成分来自西南盆缘的基底花岗质岩石的风化,而火山岩成分可能是同期火山喷发的产物,也可能是先前火山岩的风化产物. The provenance-sedimentary system is the main influencing factor of the physical properties of the original reservoirs, and the comprehensive analysis of the tectonic setting of the source area is the basis of oil and gas exploration. The North Yellow Sea Basin is located on the North China Plate of the Sulu orogenic belt Meso-Cenozoic transition extensional faulted basins. Seismic and drilling data confirm the development of mid-upper Jurassic delta sand bodies in the southwestern section of the Eastern Depression.The core- and log-recognizable sedimentary types include distributary channels, rift fans, estuaries The dam and the far sand dam etc. The seismic reflection structure shows the sedimentary sediment from the southwest direction.The rock mineral composition of the sandstone sample shows that there are granitic components and acidic volcanic components in the debris.The geochemical characteristics of the shale elements show that their substances The composition is dominated by felsic, suggesting that the source area is craton or further gyration.The sandstone Dickinson diagram shows that there are not only the components from craton or remoloid orogenic belt, but also the composition of volcanic arc orogenic belt.According to the comprehensive analysis The southwestern provenance area in the eastern depression of the North Yellow Sea Basin is a re-orogenic belt with the granitic components coming from the weathering of the basallane granitic rocks in the southwestern basin margin. The volcanic component Could be the product of volcanic eruptions over the same period, it may be previously weathering products of volcanic rocks.