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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.
Based on the latest 3D seismic data, the paper deals with the differences of the sediment-handling channels between the Sha-taitian uplift and the Shijiu-tuo uplift and the controlled sedimentation of the west slope of the Bozhong Sag. The results show that there are three types of sediment transport path in the Dongying Formation on the western slope of the Bozhong Depression: the source channel of the ancient ditch, the source channel of the groove and the source channel of the tectonic transition zone, The protruding NEE is controlled by strip-shaped distribution of source channel. The sediments controlled by the control channel of the ancient gully source are mainly distributed in the southern part of the Shijutuo uplift. The deposition of source channel controlled by the structural transition zone is mainly distributed in the sand In the study area, the three types of material source handling channels represent the transportation pathways of the terrestrial lake source from the source area to the sedimentary area and correspond to the spatial coupling of different source-drain-sink The proposed study of the source channel pattern of the fault-shaped channel originating from Shaleitian uplift changed the traditional understanding that the eastern margin of the Shaleitian bulge was the fan delta with rapid accumulation of near-origin. In order to find a favorable The storage And oil and gas distribution established guidance mode.