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Evaluation of Different CH 4 -CO 2 Replacement Processes in Hydrate-Bearing Sediments by Measuring P-Wave Velocity

Author

Listed:
  • Bei Liu

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Heng Pan

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Xiaohui Wang

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Fengguang Li

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China
    Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China)

  • Changyu Sun

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

  • Guangjin Chen

    (State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China)

Abstract

The replacement of methane with carbon dioxide in natural gas hydrate-bearing sediments is considered a promising technology for simultaneously recovering natural gas and entrapping CO 2 . During the CH 4 -CO 2 replacement process, the variations of geophysical property of the hydrate reservoir need to be adequately known. Since the acoustic wave velocity is an important geophysical property, in this work, the variations of P-wave velocity of hydrate-bearing sediments were measured during different CH 4 -CO 2 replacement processes using pure gaseous CO 2 and CO 2 /N 2 gas mixtures. Our experimental results show that P-wave velocity continually decreased during all replacement processes. Compared with injecting pure gaseous CO 2 , injection of CO 2 /N 2 mixture can promote the replacement process, however, it is found that the sediment experiences a loss of stiffness during the replacement process, especially when using CO 2 /N 2 gas mixtures.

Suggested Citation

  • Bei Liu & Heng Pan & Xiaohui Wang & Fengguang Li & Changyu Sun & Guangjin Chen, 2013. "Evaluation of Different CH 4 -CO 2 Replacement Processes in Hydrate-Bearing Sediments by Measuring P-Wave Velocity," Energies, MDPI, vol. 6(12), pages 1-13, November.
    • Handle: RePEc:gam:jeners:v:6:y:2013:i:12:p:6242-6254:d:30849
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    References listed on IDEAS

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    1. Bei Liu & Qing Yuan & Ke-Hua Su & Xin Yang & Ben-Cheng Wu & Chang-Yu Sun & Guang-Jin Chen, 2012. "Experimental Simulation of the Exploitation of Natural Gas Hydrate," Energies, MDPI, vol. 5(2), pages 1-28, February.
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    Cited by:

    1. Chen, Xuyue & Yang, Jin & Gao, Deli & Hong, Yuqun & Zou, Yiqi & Du, Xu, 2020. "Unlocking the deepwater natural gas hydrate's commercial potential with extended reach wells from shallow water: Review and an innovative method," Renewable and Sustainable Energy Reviews, Elsevier, vol. 134(C).
    2. Ren, Liang-Liang & Jiang, Min & Wang, Ling-Ban & Zhu, Yi-Jian & Li, Zhi & Sun, Chang-Yu & Chen, Guang-Jin, 2020. "Gas hydrate exploitation and carbon dioxide sequestration under maintaining the stiffness of hydrate-bearing sediments," Energy, Elsevier, vol. 194(C).
    3. Tingting Luo & Yanghui Li & Weiguo Liu & Xiang Sun & Shi Shen, 2017. "Experimental Study on the Mechanical Properties of CH 4 and CO 2 Hydrate Remodeling Cores in Qilian Mountain," Energies, MDPI, vol. 10(12), pages 1-17, December.
    4. Xiao-Hui Wang & Qiang Xu & Ya-Nan He & Yun-Fei Wang & Yi-Fei Sun & Chang-Yu Sun & Guang-Jin Chen, 2019. "The Acoustic Properties of Sandy and Clayey Hydrate-Bearing Sediments," Energies, MDPI, vol. 12(10), pages 1-11, May.
    5. Marat K. Khasanov & Nail G. Musakaev & Maxim V. Stolpovsky & Svetlana R. Kildibaeva, 2020. "Mathematical Model of Decomposition of Methane Hydrate during the Injection of Liquid Carbon Dioxide into a Reservoir Saturated with Methane and Its Hydrate," Mathematics, MDPI, vol. 8(9), pages 1-15, September.
    6. Lee, Yohan & Kim, Yunju & Lee, Jaehyoung & Lee, Huen & Seo, Yongwon, 2015. "CH4 recovery and CO2 sequestration using flue gas in natural gas hydrates as revealed by a micro-differential scanning calorimeter," Applied Energy, Elsevier, vol. 150(C), pages 120-127.
    7. Ren, Liang-Liang & Qi, Ya-Hui & Chen, Jun-Li & Sun, Yi-Fei & Sun, Chang-Yu & Wang, Xiao-Hui & Chen, Guang-Jin & Yuan, Qing & Pang, Wei-Xin & Li, Qing-Ping, 2020. "Dependence of acoustic properties on hydrate-bearing sediments with heterogeneous distribution," Applied Energy, Elsevier, vol. 275(C).
    8. Zhu, Yi-Jian & Chu, Yan-Song & Huang, Xing & Wang, Ling-Ban & Wang, Xiao-Hui & Xiao, Peng & Sun, Yi-Fei & Pang, Wei-Xin & Li, Qing-Ping & Sun, Chang-Yu & Chen, Guang-Jin, 2023. "Stability of hydrate-bearing sediment during methane hydrate production by depressurization or intermittent CO2/N2 injection," Energy, Elsevier, vol. 269(C).

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