苏北盆地白驹凹陷泰州组一段沉积物源分析

The sediment source of 1st Member of Taizhou Formation in Baiju depression, Subei basin

物源问题的研究对于了解和确定研究区有利沉积相带及储集砂体的分布、寻找有利油气储集层具有重要意义。研究区白驹凹陷勘探程度相对较低,前人关于目的层段泰一段沉积期的物源方向的研究成果很少。运用地层倾角测井资料、重矿物资料及岩心资料的综合研究,对研究区的沉积物源方向进行了判断。综合分析得出泰一段沉积时期洋心次凹的物源来自北西部建湖隆起。

The study of sediment source is significant in understanding and identifying favorable sedimentary facies belts and distribution of reservoir sands in the study area as well as in prospecting for favorable oil and gas reservoirs. The study area of this paper, Baiju depression, is at a low level of exploration. Research results concerning the sediment source of the 1st Member of Taizhou Formation are very insufficient. Based on an integrated study of dip logging data, heavy mineral data and core data, the authors probed into the orientation of the sediment source in this area. It is concluded that the sediment source of Yangxin secondary depression was derived from the Jianhu uplift in the northwest during the deposition of the 1st Member of Taizhou Formation.