石油学报 ›› 2009, Vol. 30 ›› Issue (4): 536-541.DOI: 10.7623/syxb200904010

• 地质勘探 • 上一篇    下一篇

松辽盆地南部拗陷期湖盆底形演化及充填序列

禚喜准1,2, 王琪1, 朱筱敏3, 张胜斌1,2, 杨光4, 黄铭志4   

  1. 1. 中国科学院油气资源研究重点实验室, 甘肃兰州, 730000;
    2. 中国科学院研究生院, 北京, 100039;
    3. 中国石油大学, 北京, 102249;
    4. 中国石油吉林油田分公司, 吉林松原, 138001
  • 收稿日期:2008-11-06 修回日期:2009-03-20 出版日期:2009-07-25 发布日期:2010-05-21
  • 作者简介:禚喜准,男,1981年9月生,2004年毕业于长江大学,现为中国科学院地质与地球物理研究所兰州油气研究中心在读博士研究生,主要从事层序地层学与储层地球化学方面的研究.E-mail:zhuoxizhun@126.com
  • 基金资助:
    国家重点基础研究发展规划(973)项目(2009CB219400和2003CB214606)资助.

Relationship between bottom morphology of lake basin and filling sequence during depression period in the southern Songliao Basin

ZHUO Xizhun1,2, WANG Qi1, ZHU Xiaomin3, ZHANG Shengbin1,2, YANG Guang4, HUANG Mingzhi4   

  1. 1. Key Laboratory of Petroleum Resources Reseach, Chinese Academy of Sciences, Lanzhou 730000, China;
    2. Graduate School, Chinese Academy of Sciences, Beijing 100039, China;
    3. China University of Petroleum, Beijing 102249, China;
    4. PetroChina Jilin Oilfield Company, Songyuan 138001, China
  • Received:2008-11-06 Revised:2009-03-20 Online:2009-07-25 Published:2010-05-21

摘要: 根据地震、钻井、岩心及测井资料,将松辽盆地南部青山口组三段—嫩江组一段划分为青三层序、姚家层序和嫩一层序。基于地层等时格架,应用回剥法经去压实和古水深校正,对松辽盆地南部湖盆底形特征进行了恢复。研究结果表明,松辽盆地南部拗陷期湖盆坡折带的发育程度受控于盆地的差异沉降以及沉积物供给速率,随着大地热流值的逐渐降低,湖盆坡折越来越不明显;而坡折带的发育程度对盆地的充填序列和沉积格局有重要影响。其中,青三层序坡折带发育明显,湖盆表现为深水拗陷沉积;姚家层序坡折发育不明显,表现为宽浅氧化湖盆;嫩一层序湖盆底形平缓,受湖侵影响,表现为广阔深水湖盆。

关键词: 松辽盆地, 湖盆底形, 坡折带, 拗陷期, 大地热流, 充填序列

Abstract: Based on the seismic,drilling,core and logging data,the sequence stratigraphy framework from the Member 3 of Qingshankou Formation to the Member 1 of Nenjiang Formation was divided into three sequences of Qing-3,Yaojia and Neng-1.On the basis of the isochronous stratigraphy framework,the back-stripping inversion method was applied to paleoburial depth reconstruction and paleobathymetric correction.The paleogeomorphology at the bottom of the southern Songliao Basin was rebuilt.The bottom shape of the lake basin and the deposit supply controlled the development of the slope break belt.The bottom of the lake basin had no significantly change with the decline of the geothermal flux value.The development of slope break belt played very important role in the formation of filling sequences and facies tracts of the lake basin in the southern Songliao Basin.The Qing-3 Sequence was of obvious slope break resulting in deepwater deposition.The Yaojia Sequence was not obvious and showed the wide and shallow oxidized lake-basin.The Neng-1 Sequence was a broad deepwater lake-basin with a gentle bottom.

Key words: Songliao Basin, bottom shape of lake basin, slope break belt, depression period, geothermal flux value, filling sequence

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