摘要
为了研究鄂尔多斯盆地东部地层物性特征,采用研究区的5条地震剖面与钻探、测井资料对比较正,划分地层,计算各组地层密度,分析地层及地层密度特征分布情况.结果表明,该研究区地层西倾,局部西北倾斜,南北基本不变.在甘泉地区附近发育小型隆起,延长地区发育小型凹陷,延安地区地层形成一个低密度带,为油气的有利聚集带.
Abstract
Based on drilling-related information and logging data of 5 straight two-dimensional lines to research physical properties of the formation of the eastern part of Ordos basin.This paper analyzes formations of 10 groups(from the Triassic of Yanchang group to the Paleozoic of the Ordovician Majiagou Formation),and calculates formations'density and study the distribution.The results indicate that the study area's formation dump west,and parts of it inclines to northwest direction,while the formation don't change a lot from north to south.Little size anticline and syncline zones are separately developped in Ganquan area and Yanchang area.There is also a low density zone in Yan'an area.Those areas above constitute a typical oil-gas accumulated belt.
NETL
NSTL
万方数据