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Analysis on Vertical Variation Characteristics of Eogene Formation Water in Jizhong Depression

Received: 30 January 2024    Accepted: 6 March 2024    Published: 13 March 2024
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Abstract

Jizhong Depression is located in the middle and west of Bohai Basin. During the Tertiary period, the depression was in a relatively stable state, and the shape of the depression did not change much, but the internal ups and downs of the depression were still continuous. In the Tertiary period, it experienced three development stages: early division, middle communication and late contraction, and three different sedimentary facies appeared accordingly. At the same time, it also caused three shifts of sedimentary centers. In the medium-term communication stage, two large water invasion periods occurred, and in some areas, the sedimentary water medium changed from salty to light twice. Oil and gas in the depression are associated with formation water, and the formation history of formation water is closely related to the formation history of oil and gas reservoirs. They are both in a hydrodynamic system and exchange material components for a long time. The lower tertiary is the main oil-bearing interval in central Hebei, but it is affected by the late tectonic movement and its structural characteristics are complex. Therefore, the hydrochemistry and vertical distribution characteristics of tertiary strata are studied. By effectively studying the distribution characteristics of formation water, it is concluded that the salinity of formation water in the basin tends to increase from edge to center and from shallow to deep, mainly in alternate blocking zones and alternate stagnation zones. The water deposition environment is relatively stable and the general regularity is obvious, which is an effective means to study the migration and distribution of oil and gas.

DOI 10.11648/j.sd.20241201.12
Published in Science Discovery (Volume 12, Issue 1, February 2024)
Page(s) 8-13
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Formation Water, Salinity, Hydrochemical Type, Alternating Blocking Zone, Alternating Stagnation Zone, Jizhong Depression

References
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  • APA Style

    Qingyuan, Z., Chunhua, Y., Zhicheng, Y., Yi, Z. (2024). Analysis on Vertical Variation Characteristics of Eogene Formation Water in Jizhong Depression. Science Discovery, 12(1), 8-13. https://doi.org/10.11648/j.sd.20241201.12

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    ACS Style

    Qingyuan, Z.; Chunhua, Y.; Zhicheng, Y.; Yi, Z. Analysis on Vertical Variation Characteristics of Eogene Formation Water in Jizhong Depression. Sci. Discov. 2024, 12(1), 8-13. doi: 10.11648/j.sd.20241201.12

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    AMA Style

    Qingyuan Z, Chunhua Y, Zhicheng Y, Yi Z. Analysis on Vertical Variation Characteristics of Eogene Formation Water in Jizhong Depression. Sci Discov. 2024;12(1):8-13. doi: 10.11648/j.sd.20241201.12

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  • @article{10.11648/j.sd.20241201.12,
      author = {Zhou Qingyuan and Yang Chunhua and Yu Zhicheng and Zhang Yi},
      title = {Analysis on Vertical Variation Characteristics of Eogene Formation Water in Jizhong Depression},
      journal = {Science Discovery},
      volume = {12},
      number = {1},
      pages = {8-13},
      doi = {10.11648/j.sd.20241201.12},
      url = {https://doi.org/10.11648/j.sd.20241201.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.sd.20241201.12},
      abstract = {Jizhong Depression is located in the middle and west of Bohai Basin. During the Tertiary period, the depression was in a relatively stable state, and the shape of the depression did not change much, but the internal ups and downs of the depression were still continuous. In the Tertiary period, it experienced three development stages: early division, middle communication and late contraction, and three different sedimentary facies appeared accordingly. At the same time, it also caused three shifts of sedimentary centers. In the medium-term communication stage, two large water invasion periods occurred, and in some areas, the sedimentary water medium changed from salty to light twice. Oil and gas in the depression are associated with formation water, and the formation history of formation water is closely related to the formation history of oil and gas reservoirs. They are both in a hydrodynamic system and exchange material components for a long time. The lower tertiary is the main oil-bearing interval in central Hebei, but it is affected by the late tectonic movement and its structural characteristics are complex. Therefore, the hydrochemistry and vertical distribution characteristics of tertiary strata are studied. By effectively studying the distribution characteristics of formation water, it is concluded that the salinity of formation water in the basin tends to increase from edge to center and from shallow to deep, mainly in alternate blocking zones and alternate stagnation zones. The water deposition environment is relatively stable and the general regularity is obvious, which is an effective means to study the migration and distribution of oil and gas.
    },
     year = {2024}
    }
    

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  • TY  - JOUR
    T1  - Analysis on Vertical Variation Characteristics of Eogene Formation Water in Jizhong Depression
    AU  - Zhou Qingyuan
    AU  - Yang Chunhua
    AU  - Yu Zhicheng
    AU  - Zhang Yi
    Y1  - 2024/03/13
    PY  - 2024
    N1  - https://doi.org/10.11648/j.sd.20241201.12
    DO  - 10.11648/j.sd.20241201.12
    T2  - Science Discovery
    JF  - Science Discovery
    JO  - Science Discovery
    SP  - 8
    EP  - 13
    PB  - Science Publishing Group
    SN  - 2331-0650
    UR  - https://doi.org/10.11648/j.sd.20241201.12
    AB  - Jizhong Depression is located in the middle and west of Bohai Basin. During the Tertiary period, the depression was in a relatively stable state, and the shape of the depression did not change much, but the internal ups and downs of the depression were still continuous. In the Tertiary period, it experienced three development stages: early division, middle communication and late contraction, and three different sedimentary facies appeared accordingly. At the same time, it also caused three shifts of sedimentary centers. In the medium-term communication stage, two large water invasion periods occurred, and in some areas, the sedimentary water medium changed from salty to light twice. Oil and gas in the depression are associated with formation water, and the formation history of formation water is closely related to the formation history of oil and gas reservoirs. They are both in a hydrodynamic system and exchange material components for a long time. The lower tertiary is the main oil-bearing interval in central Hebei, but it is affected by the late tectonic movement and its structural characteristics are complex. Therefore, the hydrochemistry and vertical distribution characteristics of tertiary strata are studied. By effectively studying the distribution characteristics of formation water, it is concluded that the salinity of formation water in the basin tends to increase from edge to center and from shallow to deep, mainly in alternate blocking zones and alternate stagnation zones. The water deposition environment is relatively stable and the general regularity is obvious, which is an effective means to study the migration and distribution of oil and gas.
    
    VL  - 12
    IS  - 1
    ER  - 

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Author Information
  • Bohai Drilling Downhole Operation Branch, Renqiu, China

  • Bohai Drilling Downhole Operation Branch, Renqiu, China

  • Bohai Drilling Downhole Operation Branch, Renqiu, China

  • Bohai Drilling Downhole Operation Branch, Renqiu, China

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