【摘要】 针对渤中凹陷西斜坡无井、少井的地质特征,基于最新的三维地震资料,讨论了沙垒田凸起、石臼坨凸起之间的古物源搬运通道及其控制沉积的差异性.研究结果表明,渤中凹陷西斜坡东营组发育3种类型的沉积物搬运通道:古沟谷物源通道、断槽物源通道、构造转换带物源通道.研究区的沉积主要受到源于沙垒田凸起NEE向条带状展布的断槽物源通道控制;古沟谷物源搬运通道控制的沉积主要分布石臼坨凸起南部的局部地区;构造转换带物源通道控制的沉积主要分布在沙垒田凸起东南缘的局部地区.研究区发育的这3种物源搬运通道,代表陆相湖盆物源从源区到沉积区的搬运途径,并分别对应不同的源-渠-汇的空间耦合模式.研究区源于沙垒田凸起的断槽物源通道模式观点的提出,改变了传统上认为沙垒田凸起东缘为近源快速堆积的扇三角洲为主的认识,为寻找有利的储层和油气分布建立了指导模式.更多还原

【Abstract】 Due to insufficient well data,the diversity of sediment transport pathway and their controlling deposits was analyzed using the recent 3Dseismic data in the western slope of Bozhong sag.The results show that there are three types of sediment transport pathway in Dongying formation of the western slope of Bozhong sag,including sediment transport pathway of Paleochannel,faulted trough and structural transfer zones.The deposits of study area were controlled mainly by faulted trough sediment transport pathway derived from Shaleitian uplift,with the belted distribution in NEE direction.The deposits controlled by paleo-channel sediment transport pathway occurred in the local area of southern Shijiutuo uplift.The deposits controlled by structural transfer zones sediment transport pathway are focused on the local area of southeast Shaleitian uplift.Three types of sediment transport pathway display the overall sediment transport methods from the source area to the deposits area in the continental lacustrine basins,and formed three types corresponding coupling patterns of the source area-transport pathway-deposit area.Structural transfer zones sediment transport pathway is considered one special style of faulted trough sediment transport pathway.The presence of faulted trough sediment transport pathway derived from the Shaleitian uplift changes the past understanding that it is the fan delta with proximal and rapid deposit in the eastern Shaleitian uplift,and provides an effective model for seeking potential reservoir.更多还原