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Sedimentary System Evolution and Petroleum Geological Significance of the Quaternary Ledong Formation in Qiongdongnan Basin

Received: 18 February 2023    Accepted: 6 May 2023    Published: 10 May 2023
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Abstract

Quaternary Ledong formation in Qiongdongnan Basin is rich in hydrate, it is import to clarify the evolution and distribution rule of the sedimentary system of Ledong formation in this area. Based on 3D seismic data and drilling data, combined with the characteristics of regional sea level change, and guided by the principle of sequence stratigraphy, this paper established a high-precision sequence stratigraphic framework of Ledong Formation, identified five third-order sequences, and pointed out that the S14 interface was the conversion surface of progradational continental slope to accretive continental slope. The Ledong Formation was divided into the upper member of Ledong Formation and the lower member of Ledong Formation, which controls the development of submarine fans. The results show that the lower member of Ledong Formation has developed a large channelized submarine fan of the western provenance central canyon system, and the upper member of Ledong Formation has developed a small scale submarine fan, mass flow and sheet sand complex sedimentary body outside the northern provenance canyon system. The sedimentary type and temporal and spatial evolution characteristics are defined, which provides geological basis for the prediction of favorable reservoir distribution of hydrate and shallow gas in this area.

Published in American Journal of Environmental Science and Engineering (Volume 7, Issue 2)
DOI 10.11648/j.ajese.20230702.11
Page(s) 34-40
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), 2023. Published by Science Publishing Group

Keywords

Qiongdongnan Basin, Ledong Formation, Sequence Stratigraphic Framework, Submarine Fan, Geological Significance

References
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Cite This Article
  • APA Style

    Li Wenlong, Mao Xueliang, Song Peng, Wu Bin, Yang Zhenjian. (2023). Sedimentary System Evolution and Petroleum Geological Significance of the Quaternary Ledong Formation in Qiongdongnan Basin. American Journal of Environmental Science and Engineering, 7(2), 34-40. https://doi.org/10.11648/j.ajese.20230702.11

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    ACS Style

    Li Wenlong; Mao Xueliang; Song Peng; Wu Bin; Yang Zhenjian. Sedimentary System Evolution and Petroleum Geological Significance of the Quaternary Ledong Formation in Qiongdongnan Basin. Am. J. Environ. Sci. Eng. 2023, 7(2), 34-40. doi: 10.11648/j.ajese.20230702.11

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    AMA Style

    Li Wenlong, Mao Xueliang, Song Peng, Wu Bin, Yang Zhenjian. Sedimentary System Evolution and Petroleum Geological Significance of the Quaternary Ledong Formation in Qiongdongnan Basin. Am J Environ Sci Eng. 2023;7(2):34-40. doi: 10.11648/j.ajese.20230702.11

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  • @article{10.11648/j.ajese.20230702.11,
      author = {Li Wenlong and Mao Xueliang and Song Peng and Wu Bin and Yang Zhenjian},
      title = {Sedimentary System Evolution and Petroleum Geological Significance of the Quaternary Ledong Formation in Qiongdongnan Basin},
      journal = {American Journal of Environmental Science and Engineering},
      volume = {7},
      number = {2},
      pages = {34-40},
      doi = {10.11648/j.ajese.20230702.11},
      url = {https://doi.org/10.11648/j.ajese.20230702.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajese.20230702.11},
      abstract = {Quaternary Ledong formation in Qiongdongnan Basin is rich in hydrate, it is import to clarify the evolution and distribution rule of the sedimentary system of Ledong formation in this area. Based on 3D seismic data and drilling data, combined with the characteristics of regional sea level change, and guided by the principle of sequence stratigraphy, this paper established a high-precision sequence stratigraphic framework of Ledong Formation, identified five third-order sequences, and pointed out that the S14 interface was the conversion surface of progradational continental slope to accretive continental slope. The Ledong Formation was divided into the upper member of Ledong Formation and the lower member of Ledong Formation, which controls the development of submarine fans. The results show that the lower member of Ledong Formation has developed a large channelized submarine fan of the western provenance central canyon system, and the upper member of Ledong Formation has developed a small scale submarine fan, mass flow and sheet sand complex sedimentary body outside the northern provenance canyon system. The sedimentary type and temporal and spatial evolution characteristics are defined, which provides geological basis for the prediction of favorable reservoir distribution of hydrate and shallow gas in this area.},
     year = {2023}
    }
    

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  • TY  - JOUR
    T1  - Sedimentary System Evolution and Petroleum Geological Significance of the Quaternary Ledong Formation in Qiongdongnan Basin
    AU  - Li Wenlong
    AU  - Mao Xueliang
    AU  - Song Peng
    AU  - Wu Bin
    AU  - Yang Zhenjian
    Y1  - 2023/05/10
    PY  - 2023
    N1  - https://doi.org/10.11648/j.ajese.20230702.11
    DO  - 10.11648/j.ajese.20230702.11
    T2  - American Journal of Environmental Science and Engineering
    JF  - American Journal of Environmental Science and Engineering
    JO  - American Journal of Environmental Science and Engineering
    SP  - 34
    EP  - 40
    PB  - Science Publishing Group
    SN  - 2578-7993
    UR  - https://doi.org/10.11648/j.ajese.20230702.11
    AB  - Quaternary Ledong formation in Qiongdongnan Basin is rich in hydrate, it is import to clarify the evolution and distribution rule of the sedimentary system of Ledong formation in this area. Based on 3D seismic data and drilling data, combined with the characteristics of regional sea level change, and guided by the principle of sequence stratigraphy, this paper established a high-precision sequence stratigraphic framework of Ledong Formation, identified five third-order sequences, and pointed out that the S14 interface was the conversion surface of progradational continental slope to accretive continental slope. The Ledong Formation was divided into the upper member of Ledong Formation and the lower member of Ledong Formation, which controls the development of submarine fans. The results show that the lower member of Ledong Formation has developed a large channelized submarine fan of the western provenance central canyon system, and the upper member of Ledong Formation has developed a small scale submarine fan, mass flow and sheet sand complex sedimentary body outside the northern provenance canyon system. The sedimentary type and temporal and spatial evolution characteristics are defined, which provides geological basis for the prediction of favorable reservoir distribution of hydrate and shallow gas in this area.
    VL  - 7
    IS  - 2
    ER  - 

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Author Information
  • Zhanjian Branch of CNOOC (China) Co., LTD, Zhanjian, China

  • Zhanjian Branch of CNOOC (China) Co., LTD, Zhanjian, China

  • Hainan Branch of CNOOC (China) Co., LTD, Haikou, China

  • Hainan Branch of CNOOC (China) Co., LTD, Haikou, China

  • Zhanjian Branch of CNOOC (China) Co., LTD, Zhanjian, China

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