准噶尔盆地层序地层学研究

准噶尔盆地是我国西部主要含油气盆地之一,对它的构造、沉积、成藏等地质研究较早,并取得了很大的进展,但对于该盆地的层序地层学方面的研究却不成熟,且多集中于区块研究,层位也主要是侏罗系地层.通过对全盆地范围内的露头、地震、钻测井资料的综合研究,首次建立起全盆地范围的层序地层格架,将准噶尔盆地自下而上共分为4个一级层序,9个二级层序和29个三级层序.并对各级层序特征进行了分析(地层的分布).

Study on the sequence stratigraphy of Zhungeer Basin

Zhungeer Basin is one of the main petroliferous basins in the west of China, the structure, sedi-mentaion and hydrocarbon migration and accumulation of it were studied early, and great successes are achieved. But the studies on the sequence stratigraphy of Zhungeer Basin are immature, and the studies are only limited in some blocks and Jurassic strata. Based on the integrated study of the outcrops, the seismic, drilling and logging data of whole basin, the sequence stratigraphic framework of the basin is built first, and the basin is divided into 4 first-order sequences(MegaSequence) , 9 second-order sequences(SuperSequence) and 29 third-order sequences (Sequence). Based on seismic profiles, the distribution and the characters of the sequences of different orders are analyzed.