石油与天然气地质 ›› 1991, Vol. 12 ›› Issue (1): 71-78.

• 论文 • 上一篇    下一篇

乌尔逊凹陷大磨拐河组沉积体的地震地层学解释

沈凤, 张金亮   

  1. 江汉石油学院, 湖北沙市
  • 收稿日期:1989-03-11 修回日期:1990-02-01 出版日期:1991-03-25 发布日期:2012-01-16

SEISMIC STRATIGRAPHIC INTERPRETATION OF MAJOR SEDIMENTARY BODIES IN DAMOGUAIHE FORMATION,WUERXUN DEPRESSION

Sheng Feng, Zhang Jinliang   

  1. Jianghan College of Petroleum
  • Received:1989-03-11 Revised:1990-02-01 Online:1991-03-25 Published:2012-01-16

PDF (PC)

402

被引次数

7

摘要： 乌尔逊凹陷为海拉尔盆地的一个亚盆地,面积2350km2。上侏罗统大磨拐河组厚达2000m,可划分为两个地震层序四个亚层序。根据地震反射图形的几何形态和地震相分析,建立了大磨拐河组分段砂体的平面分布,划分出近岸水下扇、远岸浊积扇、纵向搬运的浊积岩体、非扇状浊积岩体、三角洲和滩坝等沉积体。

关键词: 地震层序, 地震相, 沉积体, 大磨拐河组, 乌尔逊凹陷

Abstract: The Wuerxun Depression, a sub-basin of the Hailar Basin, covers an area of 2350km2. The Upper Jurassic Damoguaihe Formation, which is a significant hydrocarbon generating and reservoiring sequence and up to 2000m thick, can be divided into two seismic sequences and four subsequences. According to the study of seismic and sedimentary facies, it can be primarily classified as nearshore subaqueous fan, offshore turbidite fan,longitudinal transported turbidite body, non-fan turbidite body, delta, beach and bar. The formation, evolution and spatial distribution of these sedimentary bodies were controlled by tectonic movement, lake-level changes and sediment supply.