西南石油大学学报(自然科学版)

• 地质勘探 • 上一篇    下一篇

秦皇岛H 油田陆相下切侵蚀河谷充填特征

陈飞1 *,胡光义1,范廷恩1,孙立春1,赵春明2   

  1. 1. 中海油研究总院,北京朝阳100028
    2. 中海石油(中国)有限公司天津分公司,天津塘沽300452
  • 出版日期:2015-10-01 发布日期:2015-10-01
  • 通讯作者: 陈飞,E-mail:chenfei1126@163.com
  • 基金资助:

    国家科技重大专项(2011ZX05024 001)。

The Continental Incised Valley Filling Architecture in#br# Qinhuangdao H Oilfield,Bohai Bay

Chen Fei1*, Hu Guangyi1, Fan Ting′en1, Sun Lichun1, Zhao Chunming2#br# 1. CNOOC   

  1. 1. CNOOC Research Institute,Chaoyang,Beijing 100028,China
    2. Tianjin Branch of CNOOC Limited,Tanggu,Tianjin 300452,China
  • Online:2015-10-01 Published:2015-10-01

摘要:

陆上下切侵蚀河谷是由河道强烈的冲刷、侵蚀作用所形成的一种U 形地貌,河道砂体充填构成优良的储集
层。通过岩芯、地震和测井,结合粒度等资料,对渤海湾盆地秦皇岛H 油田新近系明化镇组沉积相特征进行了深入分
析,认为明下段II 油组和IV 油组发育下切侵蚀河谷,并详细论述了下切侵蚀河谷的沉积特征,建立了下切侵蚀河谷的
沉积模式。研究表明,下切侵蚀河谷内水动力的突然增加,充填的砂体粒度较粗,以中、细砂岩为主,河道砂体具有一
定的迁移方向,彼此切割相互叠置呈现出叠瓦状结构,湖平面的下降和水动力的增强是形成下切侵蚀河谷的主因。

关键词: 渤海湾盆地, 秦皇岛H 油田, 明化镇组, 下切侵蚀河谷, 充填特征

Abstract:

The continental incised valley is a kind of U topography with strong erosion,and filling sandbody is good reservoir.
According to the analysis of cores,seismic interpretation and well-logging,the authors have thoroughly studied the sedimentary
facies characters of the Neogene Minghuazhen Formation of Qinhuangdao H oilfield in the Bohai Bay Basin with grain size
analysis and a great deal of laboratory testing data. The authors propose that the sedimentary facies type of NmII and NmIV of
Minghuazhen Formation lies incised valley. Detailed studies have been made on the rock types and sedimentary structures of
incised valley,and relevant sedimentary models have been established. Incised valley water power suddenly increased,which
is dominated by medium and fine sandstone,grain size is relatively big. The sandbody transports on certain direction,cutting
and stacking each other,which presents the imbricated structure. The study demonstrates that the falling of relative lacustrine
level and the strong hydrodynamic conditions are the major causes of incised valley.

Key words: Bohai Bay Basin, Qinhuangdao H Oilfield, Minghuazhen Formation, incised valley, filling architecture

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