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Volume 47 Issue 3
May  2025
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2025  >  47(3): 451-465
NI Chunhua, YANG Jun, WANG Yanqing, SONG Zaichao, JIANG Tianci, HUANG Bingqi, YAN Zehao, XING Zezheng, ZHU Zhenjun, LI Qi, CHEN Hehe. Recent advancements in oil and gas exploration and potential zone prediction in Pearl River Mouth Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(3): 451-465. doi: 10.11781/sysydz2025030451
Citation: NI Chunhua, YANG Jun, WANG Yanqing, SONG Zaichao, JIANG Tianci, HUANG Bingqi, YAN Zehao, XING Zezheng, ZHU Zhenjun, LI Qi, CHEN Hehe. Recent advancements in oil and gas exploration and potential zone prediction in Pearl River Mouth Basin[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2025, 47(3): 451-465. doi: 10.11781/sysydz2025030451
shu

Recent advancements in oil and gas exploration and potential zone prediction in Pearl River Mouth Basin

doi: 10.11781/sysydz2025030451
  • 1.

    Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

  • 2.

    School of Ocean Sciences, China University of Geosciences (Beijing), Beijing 100083, China

  • 3.

    Key Laboratory of Polar Geology and Marine Mineral Resources of Ministry of Education, Beijing 100083, China

  • Received Date: 2024-10-14
  • Rev Recd Date: 2025-04-15
  • Publish Date: 2025-05-28
    Abstract
  • The Pearl River Mouth Basin (PRMB) is rich in oil and gas resources in the Cenozoic, with proven reserves growing rapidly. Geological breakthroughs, such as the identification of hydrocarbon accumulation controlled by low-angle detachment faults, strike-slip fault-controlled reservoirs in buried hills through weathering and leaching processes, and multi-type reservoir enrichment in deep-water areas, have offered new insights into exploration targets in PRMB. However, the complex geological structure and diverse target types in the basin increase the difficulty of exploration. Therefore, under the guidance of breakthroughs in exploration theory, it is crucial to reassess the Cenozoic oil and gas geological conditions in PRMB and identify potential oil and gas exploration zones. Through comprehensive analysis of the tectonic-sedimentary coupling relationships, hydrocarbon source rock and reservoir conditions, and oil and gas migration characteristics in PRMB, the oil and gas-bearing probability in different zones of PRMB was evaluated, and the total geological resource amount of the Cenozoic was calculated. The PRMB experienced significant tectonic evolution during the Cenozoic, characterized by rifting, post-rift depression, and structural activation. This evolution resulted in the formation of continental, transitional, and shallow marine sedimentary filling features, which controlled the development of two Paleogene hydrocarbon source rocks and two sets of continental and marine reservoirs. The oil and gas geological conditions in the shallow-water areas of the Lufeng, Huizhou, and Wenchang sags were favorable, with oil and gas-bearing probability exceeding 20% and relatively low geological risks. Therefore, these areas were classified as Class Ⅰ favorable zones. The total geological resource amount of the Cenozoic was approximately 13.8 billion tons, with oil accounting for 71% and natural gas 29%. Based on zone evaluation and actual exploration cases, future exploration should focus on buried hills, Paleogene, and deep-water oil and gas reservoirs, especially searching for those in low-angle detachment faults of the Enping, Kaiping, and Baiyun sags, fractured reservoirs controlled by deep strike-slip faults in buried hills of the Wenchang and Yangjiang sags, and deep-water reservoirs in the Baiyun and Liwan sags. These sags are expected to become important potential exploration zones for future oil and gas exploration in PRMB.

     

    • Author NI Chunhua is an Editorial Board Member and an employee of the sponsor of this journal. YANG Jun, WANG Yanqing and SONG Zaichao are employees of the sponsor of this journal. They did not take part in peer review or decision making of this article.
    The conceptual framework was developed by NI Chunhua, YANG Jun, WANG Yanqing, SONG Zaichao, and LI Qi. The initial draft was authored by JIANG Tianci and ZHU Zhenjun. NI Chunhua, YANG Jun, LI Qi, ZHU Zhenjun, and CHEN Hehe discussed and revised the manuscript. Data was organized by JIANG Tianci and YAN Zehao, and the diagrams were drawn by HUANG Bingqi and XING Zezheng. All authors have read the final version of the paper and consented to its submission.
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