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天然气地球科学 ›› 2010, Vol. 21 ›› Issue (1): 100–106.doi: 10.11764/j.issn.1672-1926.2010.01.100

• 天然气地质学 • 上一篇    下一篇

沾河断陷下白垩统淘淇河组层序地层格架及有利生储盖组合

张雷, 刘招君, 杜江峰, 杨婷, 侯伟   

  1. 1.中国石油大学（北京）资源与信息学院，北京 102249；2.吉林大学地球科学学院，吉林 长春 130061
  • 收稿日期:2009-03-09 修回日期:2009-06-27 出版日期:2010-02-10 发布日期:2010-02-10
  • 通讯作者: 张雷zlgeo@sina.com. E-mail:zlgeo@sina.com.
  • 作者简介:张雷（1982-），男，内蒙古临河人，博士研究生，主要从事沉积学及层序地层学研究.
  • 基金资助:

    国家油气专项国土资源部“全国油气资源战略选区大庆外围”项目（编号：XQ-2004-07)资助.

Sequence Stratigraphy Framework of Lower Cretaceous Taoqihe Formation in Zhanhe Rift and Favorable Source-Reservoir-Caprock Assemblages

 ZHANG  Lei, LIU  Zhao-Jun, DU  Jiang-Feng, YANG  Ting, HOU  Wei   

  1. 1. College of Resources and Information，China University of Petroleum，Beijing 102249, China;
    2. College of Earth Sciences，Jilin University，Changchun 130061, China
  • Received:2009-03-09 Revised:2009-06-27 Online:2010-02-10 Published:2010-02-10

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摘要：

通过对岩心、钻井及地震资料的研究，并结合粒度分析及地震相等分析手段，在沾河断陷下白垩统淘淇河组共确定出3种层序界面类型，识别出5个层序界面及4个三级层序。认为淘淇河组属于断陷盆地深陷扩张期—断坳转换期发育的一套沉积地层，从层序SQ1—SQ4断陷陡坡带、凹陷带及缓坡带分别发育冲积扇—扇三角洲、半深湖—深湖—湖底扇、扇三角洲—辫状河三角洲沉积体系，为盆地深陷期沉积产物；在层序SQ3—SQ4断陷陡坡带、凹陷带及缓坡带分别发育扇三角洲、湖泊、辫状河三角洲沉积，为断陷盆地断坳转换期的沉积产物。同沉积断裂的构造活动是控制层序发育及沉积演化的主要因素。综合分析表明，SQ1层序内部烃源岩发育、并具有较好的储集、运移及封盖条件，为研究区最有利的生储盖组合。

关键词: 沾河断陷, 淘淇河组, 层序地层, 沉积演化, 有利生储盖组合

Abstract:

According to drilling core，bore well，seismic data, particle size analysis and seismic facies analysis, we confirmed three sequence types of the Low Cretaceous Taoqihe Formation in the Zhanhe rift, and identified five sequence boundaries and four three-order sequences. The Taoqihe Formation is a set of sedimentary formation which belonged to the period of basin large expanding and fault sag conversion in the rift basin. The sedimentary system of alluvial fan, half deep lake-deep lake-sublacutrine fan, and fan delta-braid river delta is developed in the acitc region, hollow zone, and slop region, respectively, from SQ1 to SQ2, which was a sedimentary product during the period of the basin large expanding. The sedimentary system of fan delta, lacustrine, and braid river delta is developed in the acitc region, hollow zone, and slop region, respectively, from SQ3 to SQ4, which was a sedimentary product during the period of the fault sag conversion. The tectonic activity of syndeposit fault is the main factor in controlling the development of sequence and sedimentary evolution. By comprehensive analysis, there is not only development of source rock, but also development of preferable reservoir rock, migration and seal condition in the SQ1, which is the favorable area of source-reservoir-caprock assemblages.

Key words: Zhanhe rift, Taoqihe Formation, Sequence stratigraphy, Sedimentary evolution, Favorable source-reservoir-caprock assemblages.

中图分类号: 

  • TE121.1
 
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