南海中建盆地天然气水合物富集特征与控制因素

李林; 王彬; 孙鲁一; 王兆旗; 鲁银涛; 杨涛涛; 钱进; 王秀娟

doi:10.3799/dqkx.2022.072

Volume 48 Issue 12

Dec. 2023

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Article Navigation > Earth Science > 2023 > 48(12): 4628-4640

Li Lin, Wang Bin, Sun Luyi, Wang Zhaoqi, Lu Yintao, Yang Taotao, Qian Jin, Wang Xiujuan, 2023. Characteristics and Controlling Factors of Concentrated Gas Hydrate Occurrence in Zhongjian Basin, South China Sea. Earth Science, 48(12): 4628-4640. doi: 10.3799/dqkx.2022.072

Citation:

Li Lin, Wang Bin, Sun Luyi, Wang Zhaoqi, Lu Yintao, Yang Taotao, Qian Jin, Wang Xiujuan, 2023. Characteristics and Controlling Factors of Concentrated Gas Hydrate Occurrence in Zhongjian Basin, South China Sea. Earth Science, 48(12): 4628-4640. doi: 10.3799/dqkx.2022.072

Citation:

Li Lin, Wang Bin, Sun Luyi, Wang Zhaoqi, Lu Yintao, Yang Taotao, Qian Jin, Wang Xiujuan, 2023. Characteristics and Controlling Factors of Concentrated Gas Hydrate Occurrence in Zhongjian Basin, South China Sea. Earth Science, 48(12): 4628-4640. doi: 10.3799/dqkx.2022.072

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Characteristics and Controlling Factors of Concentrated Gas Hydrate Occurrence in Zhongjian Basin, South China Sea

doi: 10.3799/dqkx.2022.072

Li Lin^{1, 2
,
,},
Wang Bin¹,
Sun Luyi³,
Wang Zhaoqi¹,
Lu Yintao¹,
Yang Taotao¹,
Qian Jin³,
Wang Xiujuan^{4
,
,
,}

1.
Hangzhou Institute of Geology, CNPC, Hangzhou 310023, China
2.
China Southern Petroleum Exploration & Development Corporation, Guangzhou 510240, China
3.
Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
4.
Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE, College of Marine Geosciences, Ocean University of China, Qingdao 266100, China

Received Date: 2021-11-24
Available Online: 2024-01-03
Publish Date: 2023-12-25

Abstract

Abstract

High saturation gas hydrate-bearing layers is the favorable target for gas hydrate exploration and development. To identify and estimate gas hydrate-bearing layers, it uses 3D seismic data which is reprocessed by broadband wave impedance inversion, attribute analysis and the calculation of base gas hydrate stability zone to study the characteristics of the bottom simulating reflector (BSR) and gas hydrate occurrence and accumulation in the Zhongjian basin. (1) The characteristics of BSR in this area is slightly different from that found in the gas hydrate drilling area, northern South China Sea. The BSRs identified in this basin are widely distributed with continuous reflections occurred in the fine-grain sediments. The BSR amplitude is particularly strong and continuous where the fault reaches the gas hydrate stability zone. (2) The saturation of gas hydrate-bearing layers is about 30%-40% of the pore space with regional high value. The gas hydrate layer has the same polarity with the seabed reflection and is characterized by continuous and strong amplitude reflections. (3) The gas hydrate-bearing layers are occurred above different depths of the BSR which is controlled by local faults and is affected by sedimentation and tectonic movements.
- gas hydrate,
- enrichment,
- broad band process,
- Zhongjian basin,
- tectonics,
- sedimentology

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References(52)

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Characteristics and Controlling Factors of Concentrated Gas Hydrate Occurrence in Zhongjian Basin, South China Sea

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