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现代地质 ›› 2011, Vol. 25 ›› Issue (2): 297-307.

• 能源地质 • 上一篇    下一篇

大庆油田杏树岗杏一、二区东部葡I332a—葡I11细层沉积体系再认识

单敬福1,张东2,陈岑1,成群1,李清山3   

  1. 1.长江大学 地球科学学院, 湖北. 荆州434023;2.大庆油田 采油四厂, 黑龙江 .大庆163511;
    3.中国石油大学, 资源与信息学院,北京102249
  • 出版日期:2011-04-25 发布日期:2011-05-13
  • 作者简介:国家重大专项项目(ZX05009)。 作者简介:单敬福,男,博士后,讲师,1977年出生,石油地质学专业,主要从事层序、沉积与储层地质学方面的研究工作。 Email:shanjingfu@yahoo.com.cn
  • 基金资助:

    国家重大专项项目(ZX05009)。

Recognition PI332a-PI11 Sublayers- Depositional System of  Xing 1 and 2 Eastern Areas in Xingshugang, Daqing Oilfield

CHAN  Jing-Fu1,ZHANG  Dong2,CHEN  Cen1,CHENG  Qun1,LI  Qing-Shan3   

  1. 1.College of Geosciences,  Yangtze University,Jingzhou, Hubei434023,China;2.No.4 Oil Production Plant, Daqing Oilfield, Daqing,
    Heilongjiang163511, China; 3.Faculty of Natural Resources & Information Technology, China University of Petroleum,Beijing102249,China
  • Online:2011-04-25 Published:2011-05-13

摘要:

以高精度层序地层学理论为指导,通过对岩心、地震、测井、录井以及分析化验等资料的综合研究,重建了松辽盆地大庆长垣杏树岗地区姚家组一段葡萄花油层组葡I332a—葡I11细层单元沉积模式。认为在杏北油田“脉动隆升作用”(所谓脉动是指下伏隆升中心波动迁移现象)是曲流复合带有规律摆动的内在动力因素。在此理论指导下,重建了该区各细层单元沉积微相平面展布模式。平面上在主力油层葡I1—I3共识别出了2种亚相、14种沉积微相。综合研究认为,杏树岗葡I332a—葡I22细层属于三角洲上分流平原相,以高弯曲分流河道砂沉积为主,点坝砂相对发育;葡I212细层属于三角洲下分流平原相,以低弯曲分流河道砂沉积为主;葡I211—葡I11细层属于内前缘干枝状三角洲沉积。该区沉积相的精细研究,为该区下一步油气的勘探与开发奠定了基础。

关键词: 脉动隆升作用, 波动超覆概念, 杏树岗油田, 葡萄花油层组

Abstract:

Based on the theory of high accuracy sequence stratigraphy, this paper reconstructs the sublayer units deposition model of the Putaohua oil layer group PI332a-PI11 thin layer of Yaojia Formation 1st section from Xingshugang area of Daqing Changyuan in Songliao basin, which comprehensively uses various data such as core analysis, seismic data, well logs and analysis test data. Our analysis suggests that there is a “panting uplift action” (the socalled panting is a phenomenon that the underlying uplift center migrates wavelike) in Xingbei oilfield, which is the internal dynamic factor of meandering composite belt swings regularly. Guided by this theory, the plane distribution patterns of every sublayer sedimentary microfacies units were rebuilt in this area. There are 2 sub facies and 14 microfacies types were recognized from main oil layers PI1-PI3 in plane. Comprehensive research shows that the PI332a-I22 thin layer units of Xingshugang oilfield are the upper distributary plain subfacies, where high bending distributary channel sand is the main part and the point bar relatively develop. PI212 thin layer is the lower distributary plain subfacies, where low bending distributary channel sand is the main part. PI11-PI211 thin layer is the dendritic inner front delta deposition. The detailed study of sedimentary facies in this area laid a foundation for oil and gas exploration and development.

Key words: panting uplift action, wave overlap concept, Xingshugang oilfield, Putaohua oil layer group

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