古地理学报 ›› 2025, Vol. 27 ›› Issue (4): 823-839. doi: 10.7605/gdlxb.2025.016

• 岩相古地理学及沉积学 • 上一篇    下一篇

冀中坳陷中部中元古界雾迷山组热液活动特征*

鲁锴1(), 张涛1, 王哲麟1, 鲍志东2,3, 张军涛1, 鲍逸非4, 王启超1, 班舒悦2,3, 郭妍晶2,3, 胡小龙2,3, 张辛雨2,3   

  1. 1 中国石化石油勘探开发研究院,北京 102206
    2 中国石油大学(北京)地球科学学院,北京 102249
    3 深层地热富集机理与高效开发全国重点实验室, 中国石油大学(北京),北京 102249
    4 北京邮电大学理学院,北京 100876
  • 收稿日期:2024-04-19 修回日期:2024-09-26 出版日期:2025-08-01 发布日期:2025-07-30
  • 通讯作者: 鲍志东,男,1964年生,博士,教授,主要从事沉积学、储层地质学和油气与地热成藏与评价工作。E⁃mail: baozhd@cup.edu.cn。
  • 作者简介:

    鲁锴,男,1990年生,博士,副研究员,主要从事碳酸盐岩沉积与储集层研究。E-mail:

  • 基金资助:
    *深地国家科技重大专项(2024ZD1003600); 中石化科技项目(P24063)

Characteristics of hydrothermal activities in the Mesoproterozoic Wumishan Formation in central Jizhong Depression

LU Kai1(), ZHANG Tao1, WANG Zhelin1, BAO Zhidong2,3, ZHANG Juntao1, BAO Yifei4, WANG Qichao1, BAN Shuyue2,3, GUO Yanjing2,3, HU Xiaolong2,3, ZHANG Xinyu2,3   

  1. 1 Petroleum Exploration and Production Research Institute,Sinopec,Beijing 102206,China
    2 College of Geosciences,China University of Petroleum(Beijing),Beijing 102249,China
    3 State Key Laboratory of Deep Geothermal Resources, China University of Petroleum(Beijing), Beijing 102249, China
    4 School of Sciences,Beijing University of Posts and Telecommunications,Beijing 100876,China
  • Received:2024-04-19 Revised:2024-09-26 Online:2025-08-01 Published:2025-07-30
  • Contact: BAO Zhidong,born in 1964,is a professor. He is mainly engaged in researches on sedimentology,reservoir geology and hydrocarbon and geothermal accumulation and evaluation. E⁃mail: baozhd@cup.edu.cn.
  • About author:

    LU Kai,born in 1990,Ph.D.,is an associate research fellow. Now he is mainly engaged in researches of carbonate sedimentation and reservoirs. E-mail:

  • Supported by:
    National Deep Underground Science and Technology Project and the Scientific(2024ZD1003600); Technological Projects of Sinopec(P24063)

摘要: 冀中坳陷中部中元古界雾迷山组中赋存着大量的油气和地热资源,但目前对于雾迷山组储集层所经历的热液活动研究相对较少。本次研究在野外和岩心观察的基础上,利用电子探针、碳氧稳定同位素、锶同位素和流体包裹体测温等手段,对雾迷山组中热液活动特征及其对储集层的改造作用进行探讨。结果显示: 雾迷山组中发育多种热液相关矿物,其热液活动可分为3类,分别为幔源流体活动、以碳酸盐矿物为主的热液活动和硅质热液活动。其特征主要体现在白云岩发生大理岩化作用; 热液白云石矿物较基岩泥晶白云石的δ13C和 δ18O 值均偏负和锶同位素值升高; 一些白云石、石英和萤石胶结物中流体包裹体的均一温度异常增高。雾迷山组中热液活动强度的差异受控于区域幔源流体活动和输导通道。当研究区内断层和幔源流体活动时期相耦合时,热液活动强度达到最大。其强度西北强于东南; 级别越高、规模越大的断层附近的热液活动越强的特征。热液活动产生的溶蚀作用、重结晶作用和水压力破裂作用对储集层有着建设性改造作用; 充填作用、胶结作用和硅化作用减少了储集空间,是破坏性改造作用; 而大理岩化的过程基本没有改变原岩的储集性。

关键词: 流体包裹体, 热液活动, 雾迷山组, 潜山构造带, 冀中坳陷

Abstract:

The Mesoproterozoic Wumishan Formation in the central Jizhong Depression hosts abundant hydrocarbon and geothermal resources. However,studies on the hydrothermal processes affecting Wumishan reservoirs remain limited. Based on field and core observations,this study integrates electron microprobe analysis,carbon and oxygen stable isotope analysis,strontium isotope ratios,and fluid inclusion thermometry to investigate the characteristics of hydrothermal activity and its impacts on reservoir evolution within the Wumishan Formation. Results reveal the presence of diverse hydrothermal minerals,and the hydrothermal processes can be classified into three categories: (1)magmatic-related activity,(2)carbonate-dominated hydrothermal activity,and(3)siliceous hydrothermal activity. These are evidenced by dolomite undergoing marbleization,hydrothermal dolostones showing more negative δ13C and δ18O values and higher87Sr/86Sr ratios compared to matrix micritic dolomite,and anomalously elevated homogenization temperatures of fluid inclusions in dolomite,quartz,and fluorite cements. Variations in hydrothermal intensity are primarily controlled by regional magmatism and fluid migration pathways. Hydrothermal activity is strongest when faulting and magmatic events are temporally coupled,with greater intensity in the northwest compared to the southeast. More intense hydrothermal activity is also observed near higher-order,large-scale faults. Hydrothermal processes such as dissolution,recrystallization,and hydraulic fracturing enhance reservoir quality,while cementation,mineral filling,and silicification reduce porosity and act destructively. In contrast,marbleization has minimal influence on reservoir performance and largely preserves the original rock storage properties.

Key words: fluid inclusion, hydrothermal activity, Wumishan Formation, buried hill structural belt, Jizhong Depression

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