石油勘探与开发 >

2021 , Vol. 48 >Issue 1: 94 - 105

DOI: https://doi.org/10.11698/PED.2021.01.08

油气勘探

塔里木盆地古城地区寒武系台缘丘滩体类型及与古地貌的关系

  • 张君龙 ,
  • 胡明毅 ,
  • 冯子辉 ,
  • 李强 ,
  • 何香香 ,
  • 张斌 ,
  • 闫博 ,
  • 魏国齐 ,
  • 朱光有 ,
  • 张友
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  • 1.长江大学地球科学学院,武汉 430100;
    2.大庆油田有限责任公司勘探开发研究院,黑龙江大庆 163712;
    3.中国石油勘探开发研究院,北京 100083;
    4.中国石油杭州地质研究院,杭州 310023
张君龙（1974-）,男,河北沧州人,博士,中国石油大庆油田勘探开发研究院高级工程师,主要从事储集层沉积学与油气田勘探综合地质研究。地址：黑龙江省大庆市,大庆油田勘探开发研究院塔木察格室,邮政编码：163712。E-mail: zhangjunlong@petrochina.com.cn

收稿日期: 2019-12-01

  修回日期: 2021-01-06

  网络出版日期: 2021-01-19

基金资助

国家自然科学基金项目（41772103）; 国家科技重大专项（2016ZX05007-002）; 中国石油天然气股份有限公司重大科技专项“塔东天然气成藏理论及勘探配套技术研究”（2016E-0204）

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Types of the Cambrian platform margin mound-shoal complexes and their relationship with paleogeomorphology in Gucheng area, Tarim Basin, NW China

  • ZHANG Junlong ,
  • HU Mingyi ,
  • FENG Zihui ,
  • LI Qiang ,
  • HE Xiangxiang ,
  • ZHANG Bin ,
  • YAN Bo ,
  • WEI Guoqi ,
  • ZHU Guangyou ,
  • ZHANG You
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  • 1. School of Geosciences, Yangtze University, Wuhan 430100, China;
    2. Exploration and Development Research Institute, Daqing Oil Field Company Ltd., Daqing 163712, China;
    3. PetroChina Research Institute of Exploration & Development, Beijing 100083, China;
    4. PetroChina Hangzhou Research Institute of Geology (HIPG), Hangzhou 310023, China

Received date: 2019-12-01

  Revised date: 2021-01-06

  Online published: 2021-01-19

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摘要

基于露头和岩心观测、薄片鉴定、残厚法古地貌恢复、地震相精细刻画等技术方法,探讨了塔里木古城地区寒武系不同类型台缘丘滩体发育模式及与古地貌的耦合关系。古城地区寒武系台缘丘滩体划分为丘基、丘核、丘前、丘后和丘坪5种微相,分别由具有指相意义的7种结构类型白云岩组合构成。恢复了各期丘滩体沉积前不同的古地貌,构建了与之相耦合的第1期缓坡对称加积型、第2期陡坡非对称加积型和第3、4期陡坡非对称前积型3种类型丘滩体沉积模式,丘滩体微相组合分别呈“丘基—丘后+（小）丘核+丘前—丘坪”完整对称的垂向加积结构、“丘基—（大）丘核+丘前—丘坪”非对称的垂向加积结构、“丘基—（小）丘核+丘前—丘坪”侧向前积非对称结构的特征。具有“大丘大滩”特征的陡坡非对称加积型丘滩体有利储集相带最发育,是有利油气区勘探的方向。图5表2参41

关键词： 塔里木盆地; 古城地区; 寒武系; 台缘丘滩体类型; 古地貌

本文引用格式

张君龙 , 胡明毅 , 冯子辉 , 李强 , 何香香 , 张斌 , 闫博 , 魏国齐 , 朱光有 , 张友 . 塔里木盆地古城地区寒武系台缘丘滩体类型及与古地貌的关系[J]. 石油勘探与开发, 2021 , 48(1) : 94 -105 . DOI: 10.11698/PED.2021.01.08

Abstract

Based on the observation of outcrops and cores, thin section identification, restoration of paleogeomorphology by residual thickness method, fine description of seismic facies, etc., the coupling relationships between the development patterns of various types of Cambrian platform margin mound-shoal complexes and paleogeomorphology in the Gucheng area of Tarim Basin have been examined. The Cambrian platform margin mound shoal complex is divided into mound base, mound core, mound front, mound back and mound flat microfacies, which are composed of dolomites of seven textures with facies indication. The different paleogeomorphology before the deposition of mound-shoal complex in each period was reconstructed, and three types of mound shoal complex sedimentary models corresponding to the paleogeomorphologies of four stages were established: namely, the first stage of gentle slope symmetric accretion type, the second stage of steep slope asymmetric accretion type and the third and fourth stages of steep slope asymmetric progradation type. Their microfacies are respectively characterized by “mound base - mound back + (small) mound core + mound front - mound flat” symmetric vertical accretion structure, “mound base - (large) mound core + mound front - mound flat” asymmetric vertical accretion structure, “mound base - (small) mound core + mound front - mound flat” asymmetric lateral progradation structure. With most developed favorable reservoir facies belt, the steep slope asymmetric accretion type mound-shoal complex with the characteristics of “large mound and large shoal” is the exploration target for oil and gas reservoir.

Key words： Tarim Basin; Gucheng area; Cambrian; type of platform margin mound-shoal complex; paleogeomorphology

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