石油与天然气地质 ›› 2001, Vol. 22 ›› Issue (2): 185-186.doi: 10.11743/ogg20010223

• 油气空间 • 上一篇    下一篇

渤南洼陷下第三系沙河街组辫状河三角洲沉积

李东海1, 康仁华1, 李维锋2, 彭德堂2   

  1. 1. 胜利油田河口采油厂, 山东东营257000;
    2. 江汉石油学院地球科学系, 湖北荆州434102
  • 收稿日期:2001-04-03 出版日期:2001-06-25 发布日期:2012-01-16

DELTA DEPOSITS OF BRAIDED RIVER FROM SHAHEJIE FORMATION, LOWER TERTIARY IN BONAN SAG

Li Donghai1, kang Renhua1, Li Weifeng2, Peng Detang2   

  1. 1. Hekou Oil Production Factory of Shengli Oilfields, Dongying Shandong;
    2. Department of Earth Sciences Jianghan Petroleum Institute, Jingzhou, Hubei
  • Received:2001-04-03 Online:2001-06-25 Published:2012-01-16

PDF (PC)

674

被引次数

24

摘要：

胜利油田渤南洼陷下第三系沙河街组中发现丰富的湖泊辫状河三角洲前缘及前三角洲沉积物,其特征显著,明显有别于其它类型的三角洲.辫状河三角洲前缘的主体是由含砾砂岩及中、粗粒砂岩组成的水下分流河道砂坝,三角洲中交错层理丰富,其中尤以水道砂坝侧向迁移加积而形成的侧积交错层异常发育为标志.

关键词: 辫状河, 三角洲, 沙河街组, 渤南洼陷

Abstract:

Plenty of braided river delta front deposits and prodelta deposits were discovered in Lower Tertiary Shahejie Formation in Bonan Sag, Shengli Oilfields. They differ greatly from other types of delta deposits. The main body of the delta front consists of subaqueous distributary channel sandbars composed of pebbled sandstone and midium-coarse sandstone. Cross-bedding developed well in the delta, especially lateral accretion cross-bedding formed by lateral displacement and accretion of river channel sandbars.

Key words: braided river, delta, the Shahejie Formation, Bonan Sag

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