岩性油气藏 ›› 2016, Vol. 28 ›› Issue (6): 1–8.doi: 10.3969/j.issn.1673-8926.2016.06.001

• 油气地质 •    下一篇

四川盆地陆相富有机质层段剖面结构特征及类型划分

周 文1,2,徐 浩1,2,邓虎成1,2,陈文玲1,2   

  1. 1.油气藏地质及开发工程国家重点实验室(成都理工大学),成都 610059;2.成都理工大学能源学院,成都 610059
  • 收稿日期:2016-06-05 修回日期:2016-07-18 出版日期:2016-11-10 发布日期:2016-11-10
  • 第一作者:周文(1962-),男,教授,博士生导师,主要从事非常规油气地质方面的教学与科研工作。地址:(610059)四川省成都市成华区二仙桥东三路1 号成都理工大学。E-mail:Zhouwen62@cdut.edu.cn。
  • 基金资助:
    国家重大科技专项“海相页岩气储层评价方法研究”(编号:2016ZX05025002-005)和国家高技术研究发展计划(863计划)项目“页岩气储层特征及评价技术研究”(编号:2013AA064501)联合资助

Characteristics and classification of section structure of nonmarine organic-rich formations in Sichuan Basin

Zhou Wen 1,2, X u Hao 1,2, Deng Hucheng 1,2, Chen Wenling 1,2   

  1. 1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu 610059, China;2. College of Energy Resources, Chengdu University of Technology, Chengdu 610059, China
  • Received:2016-06-05 Revised:2016-07-18 Online:2016-11-10 Published:2016-11-10

摘要: 为了揭示四川盆地富有机质层段特征及不同类型剖面结构的产能规律,以四川盆地侏罗系自流井组大安寨段和三叠系须家河组须五段为研究对象,在野外实测剖面和钻井资料分析的基础上,结合区域沉积背景,利用泥地比、单层砂(灰)岩厚度等为标准,对陆相富有机质层段剖面结构进行了划分,并与北美 Bakken 组致密油气地层剖面结构和生产特征进行了对比。 陆相富有机质层段可划分为致密砂(灰)岩型、富砂(灰)夹泥型、砂(灰)泥互层型、富泥夹砂(灰)型及泥页岩型等 5 种类型的剖面结构。 富有机质层段中致密砂(灰)岩油气与页岩油气共存,其中页岩油气产出剖面主要集中于砂(灰)泥互层型、富泥夹砂(灰)型及泥页岩型剖面结构。 陆相地层具有多产层特征,将富有机质页岩夹砂(灰)岩地层作为整体进行页岩油气勘探开发,应是今后陆相页岩油气地层重要的勘探开发思路。

关键词: SPE&mdash, PRMS准则;证实储量:概算储量:可能储量:油藏类型

Abstract: In order to reveal the characteristics of nonmarine organic-rich formations and the productivity of different types of stratigraphic structure sections, taking the Da’anzhai member of Jurassic Ziliujing Formation and the fifth member of Triassic Xujiahe Formation in Sichuan Basin as examples, this paper divided the statigraphic structure section by making the ratio of shale to gross and thickness of single sand (limestone) as standards based on the field observed profiles, drilling data and sedimentary settings, and compared with the structure sections of Bakken Formation in North America. The nonmarine organic-rich stratigraphic structure sections were divided into five types: tight sandstone (limestone), sandstone-rich (limestone-rich) with shale, sandstone (limestone) and shale interbed, shale-rich with sandstone (limestone) and shale. The tight sandstone (limestone) oil and gas coexist with shale oil and gas in nonmarine organic-rich formations, and the shale oil and gas are mainly produced in the last three types of structure sections. There are multiple productive targets in nonmarine organic-rich formations, so, it is proposed that the formation of organic-rich shale interbedded with limestone or sandstone should be considered to explore as a whole.

Key words: SPE—PRMS standard, proved reserve, probable reserves, possible reserves, reservoir type

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