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古地理学报 ›› 2009, Vol. 11 ›› Issue (5): 561-572. doi: 10.7605/gdlxb.2009.05.010

• 古地理学及矿产资源 • 上一篇    下一篇

黄骅坳陷中区古近系东营组沉积特征及有利勘探区带预测*

廖远涛1,2 王华2 王家豪2 肖敦清3 黄传炎2 夏存银2 刘彦博2   

  1. 1 中国地质大学（武汉）构造与油气资源教育部重点实验室，湖北武汉 430074
    2 中国地质大学（武汉）资源学院，湖北武汉 430074
    3 中国石油天然气股份有限公司大港油田分公司勘探开发研究院，天津大港 300280
  • 收稿日期:2009-01-10 修回日期:2009-03-20 出版日期:2009-10-01 发布日期:2009-10-01
  • 作者简介:廖远涛，男，1977年生，2005年毕业于中国地质大学（武汉），获博士学位，现为中国地质大学（武汉）讲师，主要从事沉积学、石油地质学研究。 通讯地址：武汉市洪山区鲁磨路388号，中国地质大学（武汉）资源学院；邮政编码：430074；电话：027-61264316；E-mail:ytliao@cug.edu.cn。
  • 基金资助:
    国家自然科学基金项目（编号：40872077）、“构造与油气资源”教育部重点实验室开放研究基金项目（编号：TPR-2009-14）、中国地质大学（武汉）优秀青年教师资助计划项目（编号：CUGQNL0642）联合资助

The Paleogene Dongying Formation in central area of Huanghua Depression: Depositional characteristics and prediction of favorable exploration area

Liao Yuantao1,2, Wang Hua2, Wang Jiahao2, Xiao Dunqing3, Huang Chuanyan2, Xia Cunyin2, Liu Yanbo2   

  1. 1 Key Laboratory of Tectonics and Petroleum Resources, China University of Geosciences(Wuhan),
    Ministry of Education, Wuhan 430074， Hubei
    2 Faculty of Earth Resources，China University of Geosciences(Wuhan)，Wuhan 430074， Hubei
    3 Research Institute of Exploration and Development，Dagang Oilfield Company，PetroChina, Dagang 300280，Tianjin
  • Received:2009-01-10 Revised:2009-03-20 Online:2009-10-01 Published:2009-10-01
  • About author:Liao Yuantao， born in 1977， graduated and obtained Ph.D.degree from China University of Geosciences(Wuhan)in 2005. Now he is a lecturer in China University of Geosciences(Wuhan)， and is mainly engaged in sedimentology and petroleum geology. Address: No.388 Lumo Road， Wuhan. Postcode: 430074. E-mail: ytliao@cug.edu.cn. Tel：86-27-61264316.

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摘要： 综合岩心、钻井、地震等资料，运用层序地层学、现代沉积学的思路和方法，对黄骅坳陷中区古近系东营组的沉积体系特征进行了分析，指出东营组沉积时期处于盆地断—拗转化阶段，主要发育湖泊三角洲和湖泊体系，局部地区发育扇三角洲和浊积体系等。沉积体系的时空分布和演化特征受控于构造背景和层序结构样式的差异，表现为东三段层序（SQEd3）以低位域三角洲和范围扩大的高位域三角洲为主；东二段层序（SQEd2）、东一下段层序（SQEd1x）以板桥次凹等局部地区发育的低位域三角洲和普遍发育的高位域三角洲为主；东一上段层序（SQEd1s）低位域三角洲和高位域三角洲主要分布于歧南次凹和歧北次凹，总体形成了缓坡背景、断控斜坡背景和多级断阶背景下的3类沉积模式。基于上述研究，认为研究区发育5类有利圈闭区：坡折带附近的隐蔽圈闭区、越过凹陷中心的上超尖灭圈闭区、构造—岩性复合圈闭区、低位域和高位域浊积砂体形成的岩性圈闭区、下切谷充填岩性圈闭区，构成了6个有利的勘探区带，这对于指导研究区东营组的油气勘探具有重要意义。

关键词: 古近系, 东营组, 沉积体系, 有利区带, 黄骅坳陷

Abstract: The characteristics of depositional systems of the Dongying Formation in the central area of the Huanghua Depression were analyzed based on analyses of sequence stratigraphy and modern sedimentology combined with core，well and seismic data. The Dongying Formation was formed in the transitional period of tectonic evolution from rifting to sagging stages. Mainly lacustrine deltaic and lacustrine systems were developed. Fan delta and turbidite systems were only distributed sporadically. Time-spatial distribution and evolution of the depositional systems were controlled by tectonic setting and sequence configuration. Three typical depositional models were established and they include gentle slope， fault-controlled steep slope， and multi-level step-fault. In details， lowstand and highstand systems tracts deltas were mainly developed in the SQEd3. Lowstand systems tract delta in local areas such as Banqiao Subsag and highstand systems tract delta with a large range were mainly developed in the SQEd2 and SQEd1x. Lowstand and highstand systems tract deltas were developed in the Qinan and Qibei Subsags in the SQEd1s. Based on the analysis of depositional systems， five types of traps were identified. They are subtle traps near the slope break， onlap pinchout traps across the sag center， structural-lithologic traps， and subtle traps including lowstand systems tract turbidites， highstand systems tract turbidites and incised valley. Six favorable exploration areas were predicted according to the characteristics of traps.

Key words: Paleogene, Dongying Formation, depositional system, favorable exploration area, Huanghua Depression

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