石油与天然气地质 ›› 1998, Vol. 19 ›› Issue (4): 351-355.doi: 10.11743/ogg19980417

• 论文 • 上一篇    下一篇

板桥凹陷沙河街组滩坝砂体

周丽清1, 邵德艳2, 房世瑜2, 李兆泽2, 张建国2   

  1. 1. 石油大学, 北京102200;
    2. 大港油田集团公司职工培训中心, 天津300280
  • 收稿日期:1998-05-13 出版日期:1998-12-25 发布日期:2012-01-18

BEACH AND BAR SANDBODIES OF SHAHEJIE FORMATION IN BANQIAO DEPRESSION

Zhou Liqing1, Shao Deyan2, Fang Shiyu2, Li Zhaoze2, Zhang Jianguo2   

  1. 1. Petroleum University, Beijing;
    2. The Trainning Centre of Dagang Oilfield Led, Tianjin
  • Received:1998-05-13 Online:1998-12-25 Published:2012-01-18

PDF (PC)

1094

被引次数

64

摘要：

板桥凹陷沙河街组滩坝沉积十分发育,为成熟度很高的中、细砂岩,分选磨圆较好,常见板状、楔状交错层理,形成于湖进或湖退阶段。滩砂体多呈正旋回层序,坝砂体多呈反旋回层序,以后者居多。滩坝孔隙度、渗透率都高,物性明显好于其他沉积相,是很好的油气储层。

关键词: 滩坝, 储集性, 沉积相, 板桥凹陷

Abstract:

Beaches and sand-bars developed well in the Shahejie Formation,Banqiao Depression.They are mainly high matured medium or fine grained sandbodies with good degree of sorting and good psephicity,platy-wedged shaped and parallel cross-bedding,formed in transgression or regression process.The beaches usually occur normal cyclic sequence and the bars are in reversal cyclic sequence.Their porosity and permeability are high,and lithophysical property is better than other sediments.So they are good oil and gas reservoirs.