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Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations

Author

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  • Jing-Chun Feng

    (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    University of Chinese Academy of Sciences, Beijing 100083, China)

  • Xiao-Sen Li

    (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China)

  • Gang Li

    (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China)

  • Bo Li

    (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
    University of Chinese Academy of Sciences, Beijing 100083, China)

  • Zhao-Yang Chen

    (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China)

  • Yi Wang

    (Guangzhou Center for Gas Hydrate Research, Chinese Academy of Sciences, Guangzhou 510640, China
    Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China)

Abstract

Based on the available measurement data and literature on the hydrate deposits of the South China Sea, a numerical simulation with a new dual horizontal well system has been carried out. Warm brine stimulation combined with depressurization is employed as the production method. Two horizontal wells were situated in the same horizontal plane and they were placed in the middle of the Hydrate-Bearing Layer (HBL). The warm brine is injected from the left well (LW) into the reservoir, and the right well (RW) acted as the producer under constant pressure. The simulation results show that the effects of hydrate dissociation rate, gas to water ratio, and energy ratio are all better than the previous work in which the dual horizontal wells are placed in the same vertical plane. In addition, the sensitivity analysis indicates that a higher injection rate can enhance the hydrate dissociation rate and gas production rate, while a lower injection rate gives a more favorable gas to water ratio and energy ratio.

Suggested Citation

  • Jing-Chun Feng & Xiao-Sen Li & Gang Li & Bo Li & Zhao-Yang Chen & Yi Wang, 2014. "Numerical Investigation of Hydrate Dissociation Performance in the South China Sea with Different Horizontal Well Configurations," Energies, MDPI, vol. 7(8), pages 1-22, July.
    • Handle: RePEc:gam:jeners:v:7:y:2014:i:8:p:4813-4834:d:38604
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    References listed on IDEAS

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    Cited by:

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    5. Yi Wang & Jing-Chun Feng & Xiao-Sen Li & Yu Zhang & Gang Li, 2016. "Evaluation of Gas Production from Marine Hydrate Deposits at the GMGS2-Site 8, Pearl River Mouth Basin, South China Sea," Energies, MDPI, vol. 9(3), pages 1-22, March.
    6. Yuan Chen & Shiguo Wu & Ting Sun & Shu Jia, 2022. "Study of the Appropriate Well Types and Parameters for the Safe and Efficient Production of Marine Gas Hydrates in Unconsolidated Reservoirs," Energies, MDPI, vol. 15(13), pages 1-16, June.
    7. Feng, Jing-Chun & Wang, Yi & Li, Xiao-Sen, 2016. "Hydrate dissociation induced by depressurization in conjunction with warm brine stimulation in cubic hydrate simulator with silica sand," Applied Energy, Elsevier, vol. 174(C), pages 181-191.
    8. Yun-Pei Liang & Xiao-Sen Li & Bo Li, 2015. "Assessment of Gas Production Potential from Hydrate Reservoir in Qilian Mountain Permafrost Using Five-Spot Horizontal Well System," Energies, MDPI, vol. 8(10), pages 1-22, September.
    9. Alberto Maria Gambelli & Federico Rossi, 2023. "Review on the Usage of Small-Chain Hydrocarbons (C 2 —C 4 ) as Aid Gases for Improving the Efficiency of Hydrate-Based Technologies," Energies, MDPI, vol. 16(8), pages 1-22, April.
    10. Li, Xiao-Sen & Xu, Chun-Gang & Zhang, Yu & Ruan, Xu-Ke & Li, Gang & Wang, Yi, 2016. "Investigation into gas production from natural gas hydrate: A review," Applied Energy, Elsevier, vol. 172(C), pages 286-322.
    11. Feng, Jing-Chun & Wang, Yi & Li, Xiao-Sen & Li, Gang & Zhang, Yu & Chen, Zhao-Yang, 2015. "Effect of horizontal and vertical well patterns on methane hydrate dissociation behaviors in pilot-scale hydrate simulator," Applied Energy, Elsevier, vol. 145(C), pages 69-79.
    12. Ning, Fulong & Chen, Qiang & Sun, Jiaxin & Wu, Xiang & Cui, Guodong & Mao, Peixiao & Li, Yanlong & Liu, Tianle & Jiang, Guosheng & Wu, Nengyou, 2022. "Enhanced gas production of silty clay hydrate reservoirs using multilateral wells and reservoir reformation techniques: Numerical simulations," Energy, Elsevier, vol. 254(PA).
    13. Feng, Jing-Chun & Wang, Yi & Li, Xiao-Sen & Li, Gang & Zhang, Yu, 2015. "Three dimensional experimental and numerical investigations into hydrate dissociation in sandy reservoir with dual horizontal wells," Energy, Elsevier, vol. 90(P1), pages 836-845.
    14. Zhang, Qi & Wang, Yanfei, 2023. "Comparisons of different electrical heating assisted depressurization methods for developing the unconfined hydrate deposits in Shenhu area," Energy, Elsevier, vol. 269(C).

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