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Recovery of Gas Hydrate Particles with Double Jet Extraction in Solid Fluidization Exploitation
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Lin ZHONG1, 2, Wen-chao ZHANG1, 2, Guo-rong WANG1, 2, Lin-feng ZHANG1, 2, Dang-fei WANG1, 2, Xing-yong YU1, 2
Science Technology and Engineering | 2025, 25(5) : 1878 - 1886
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Science Technology and Engineering | 2025, 25(5): 1878-1886
• Papers·Mining and Metallurgical Engineering •
Recovery of Gas Hydrate Particles with Double Jet Extraction in Solid Fluidization Exploitation
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Lin ZHONG1, 2, Wen-chao ZHANG1, 2, Guo-rong WANG1, 2, Lin-feng ZHANG1, 2, Dang-fei WANG1, 2, Xing-yong YU1, 2
Affiliations
  • 1 School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China
  • 2 Energy Equipment Institute, Southwest Petroleum University, Chengdu 610500, China
Published: 2025-02-18 doi: 10.12404/j.issn.1671-1815.2402117
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As an innovative new method of natural gas hydrate extraction, the recovery of hydrate particles determines the efficiency of this method and is one of the key technical links. However, due to the limited hydraulic suction, the recovery rate of hydrate particles is low. Therefore, in order to improve the recovery performance of hydrate particles, a double jet recovery scheme was innovatively proposed. In order to explore the efficiency of solid particle recovery under different working conditions, experimental research was carried out, and the recovery flow field and particle recovery rate were studied by numerical simulation. The results show that with the increase in the distance between the front-end jetting and the recovery hole (l1) and the distance between the back-end jetting and the recovery hole (l2), the flow field effect between the double jets weakens, resulting in the particle deposition phenomenon becoming more obvious and the number of sand piles changing from 2 to 3. When the distance between the back-end jetting and the recovery hole (l2) is 300 mm, the particle recovery increases first and then decreases with the increase in the distance between the front-end jetting and the recovery hole (l1). When l1 = 300 mm, the recovery increases first and then decreases with the increase of l2. The results further enrich the mechanism of hydrate mining and help optimize the design of mining tools.

natural gas hydrate  /  solid fluidization exploitation  /  double jet  /  particle recovery  /  DDPM model
Lin ZHONG, Wen-chao ZHANG, Guo-rong WANG, Lin-feng ZHANG, Dang-fei WANG, Xing-yong YU. Recovery of Gas Hydrate Particles with Double Jet Extraction in Solid Fluidization Exploitation[J]. Science Technology and Engineering, 2025 , 25 (5) : 1878 -1886 . DOI: 10.12404/j.issn.1671-1815.2402117
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Year 2025 volume 25 Issue 5
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Article Info
doi: 10.12404/j.issn.1671-1815.2402117
  • Receive Date：2024-03-25
  • Online Date：2025-07-29
  • Published：2025-02-18
Article Data
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History
  • Received：2024-03-25
  • Revised：2024-11-19
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Affiliations
    1 School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China
    2 Energy Equipment Institute, Southwest Petroleum University, Chengdu 610500, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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