琼东南盆地深水海底扇岩性圈闭成藏主控因素与勘探突破

尤丽; 江汝锋; 龚宇; 徐守立; 詹冶萍; 郑飞; 韩建辉

doi:10.3799/dqkx.2023.166

Volume 49 Issue 2

Feb. 2024

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Article Navigation > Earth Science > 2024 > 49(2): 749-758

You Li, Jiang Rufeng, Gong Yu, Xu Shouli, Zhan Yeping, Zheng Fei, Han Jianhui, 2024. Main Controlling Factors of Accumulation and Exploration Breakthrough of Deep-Water Submarine Fan Lithologic Trap in the Qiongdongnan Basin. Earth Science, 49(2): 749-758. doi: 10.3799/dqkx.2023.166

Citation:

You Li, Jiang Rufeng, Gong Yu, Xu Shouli, Zhan Yeping, Zheng Fei, Han Jianhui, 2024. Main Controlling Factors of Accumulation and Exploration Breakthrough of Deep-Water Submarine Fan Lithologic Trap in the Qiongdongnan Basin. Earth Science, 49(2): 749-758. doi: 10.3799/dqkx.2023.166

Citation:

You Li, Jiang Rufeng, Gong Yu, Xu Shouli, Zhan Yeping, Zheng Fei, Han Jianhui, 2024. Main Controlling Factors of Accumulation and Exploration Breakthrough of Deep-Water Submarine Fan Lithologic Trap in the Qiongdongnan Basin. Earth Science, 49(2): 749-758. doi: 10.3799/dqkx.2023.166

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Main Controlling Factors of Accumulation and Exploration Breakthrough of Deep-Water Submarine Fan Lithologic Trap in the Qiongdongnan Basin

doi: 10.3799/dqkx.2023.166

1.
China National Off shore Oil Limited Corporation-Hainan, Haikou 570100, China
2.
China National Offshore Oil Linited Corporation-Zhanjiang, Zhanjiang 524057, China
3.
College of Energy, Chengdu University of Technology, Chengdu 610059, China

Received Date: 2023-02-15
Publish Date: 2024-02-25

Abstract

Abstract

To study the key problems restricting exploration are the traps effectiveness and gas enrichment rule. Based on the analysis of submarine fan reservoir characteristics, trap formation and lateral sealing conditions, natural gas migration and accumulation, the main controlling factors of deep-water submarine fan traps large-scale accumulation is researched. The results show that: (1)The submarine fan coming from Hainan uplift is mainly distributed in the northern slope area, and the submarine fan in the depression zone coming from the western Kunsong uplift develop large-scale advancing far into the sag, and the physical properties of the reservoir become better. (2)The types of trap lateral sealing mechanisms are establishing, including sealed by mudstone channel type, sealed by sandstone channel type, lithological pinch-out type and fault lateral sealing type. (3)The mature to high mature natural gas of Meishan submarine fan were supplied by source rock of Yacheng formation, Accumulation mode was large-scale structural ridge convergence in source rock, vertical and lateral migration system with fault or fracture and sandstone, and effective traps cotrolling accumulation. It has been made breakthroughs in lithological pinch-out type and sealed by mudstone channel type, and the next expansion direction is explicited.
- Qiongdongnan Basin,
- Ledong-Lingshui sag,
- deep-water,
- miocene,
- submarine fan,
- Trap conditions,
- main factors controlling of accumulation,
- petroleum geology

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Main Controlling Factors of Accumulation and Exploration Breakthrough of Deep-Water Submarine Fan Lithologic Trap in the Qiongdongnan Basin

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