石油与天然气地质 ›› 1992, Vol. 13 ›› Issue (4): 450-457.doi: 10.11743/ogg19920411

• 论文 • 上一篇    下一篇

阜新盆地石油地质特征

刘建英, 王世云, 尹继宏   

  1. 辽河石油勘探局勘探开发研究院 辽宁 盘锦 124010
  • 收稿日期:1991-05-18 修回日期:1991-07-05 出版日期:1992-12-25 发布日期:2012-01-16

PETROLEUM GEOLOGICAL CHARACTER OF FUXIN BASIN

Liu Jianying, Wang Shiyun, Yin Jihong   

  1. Research Institute of Petroleum Exploration and Development, Exploration Bureau of Liaohe Oilfield
  • Received:1991-05-18 Revised:1991-07-05 Online:1992-12-25 Published:2012-01-16

PDF (PC)

876

被引次数

11

摘要：

阜新盆地是晚侏罗-早白垩世的地堑型断陷盆地,面积约2000km2。主要受北北东向和北西向两组同生断裂控制,其沉积最大厚度约6000m。九佛堂组和沙海组三、四段为主要生油层,其中所夹扇三角洲砂体及水下重力流砂体为有利储集层,具一定的含油远景。

关键词: 阜新盆地, 陆相沉积, 侏罗系, 九佛堂组, 沙海组, 含油远景评价

Abstract:

Fuxin Basin is a graben-type basin that covers an area of 2000 km2 formed on Pre-cambrian basement during Late Jurassic-Early Cretaceous.Contemporaneous faults could be primarily classified into two groups such as NNE-stretching and NW-stretching faults.The former controlled the thickness and distribution of Upper Jurassic,and the later con-trolled the distribution of coal-rich zones and local structures.The Jiufotang Formation and the third-fourth member of the Shahai Formation are the main source rocks whose organic matter is mainly type-Ⅱ,and the threshold depth of oil-generation that is calcu-lated with average 3.93℃/100m of geothermal gradient is 1350 m.Reservoirs occupy 70% of the total sediment thickness,in which sandbodies of fan-delta and subaqueus gravity-flows are more favourable for hydrocarbon preservation.