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On the importance of phase saturation heterogeneity in the analysis of laboratory studies of hydrate dissociation

Author

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  • Yin, Zhenyuan
  • Moridis, George
  • Linga, Praveen

Abstract

Methane hydrates (MHs) have been considered as the future source of energy because of its vast resource volume and high energy density. Energy recovery from MH-bearing sediments has attracted intensifying research activities. Fundamentally, heat transfer, fluid flow through porous media, and the kinetics of hydrate reaction are the three key processes controlling the behavior of MH dissociation and the associated fluid production. Earlier studies have suggested that heterogeneous spatial distribution of SH is inevitable in MH-bearing samples synthesized in laboratory. In this paper, we extend our study to analyze numerically the simulation results from the two realizations of the samples (homogeneous and heterogeneous) to identify differences in the fluid production and to determine if they are sufficiently different. Additionally, we conduct a sensitivity analysis and a statistical analysis on the key transport and kinetic rate parameters that could affect hydrate dissociation and fluid production in the context of a heterogeneous hydrate-bearing sample, in an effort to provide insights that could lead to improved designs for laboratory experiments and (possibly) field applications. Our results suggest that the approximation of an artificial hydrate-bearing core with heterogeneous phase saturations by an assumption of uniform phase saturation distributions results in practically similar fluid production profile except for the very early stage with maximum 20.0% deviation in the water production. From the sensitivity and statistical analysis, we determine that gas production depends strongly on the kinetic rate constant, Kd0 and the composite thermal conductivity of the hydrate-bearing sediments, λθ; while, water production is very sensitive to Kd0 and the absolute permeability of the sandy medium, k. Understanding the effect of phase heterogeneity and the relative importance of key parameters on the production behavior of hydrate-bearing sediments could provide basis for novel production technologies that lead to enhanced gas production and energy efficiency in the energy recovery process.

Suggested Citation

  • Yin, Zhenyuan & Moridis, George & Linga, Praveen, 2019. "On the importance of phase saturation heterogeneity in the analysis of laboratory studies of hydrate dissociation," Applied Energy, Elsevier, vol. 255(C).
  • Handle: RePEc:eee:appene:v:255:y:2019:i:c:s030626191931548x
    DOI: 10.1016/j.apenergy.2019.113861
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    Citations

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    Cited by:

    1. Kou, Xuan & Feng, Jing-Chun & Li, Xiao-Sen & Wang, Yi & Chen, Zhao-Yang, 2022. "Visualization of interactions between depressurization-induced hydrate decomposition and heat/mass transfer," Energy, Elsevier, vol. 239(PC).
    2. Kou, Xuan & Li, Xiao-Sen & Wang, Yi & Liu, Jian-Wu & Chen, Zhao-Yang, 2021. "Heterogeneity of hydrate-bearing sediments: Definition and effects on fluid flow properties," Energy, Elsevier, vol. 229(C).
    3. Wu, Zhaoran & Liu, Weiguo & Zheng, Jianan & Li, Yanghui, 2020. "Effect of methane hydrate dissociation and reformation on the permeability of clayey sediments," Applied Energy, Elsevier, vol. 261(C).
    4. Song, Rui & Feng, Xiaoyu & Wang, Yao & Sun, Shuyu & Liu, Jianjun, 2021. "Dissociation and transport modeling of methane hydrate in core-scale sandy sediments: A comparative study," Energy, Elsevier, vol. 221(C).
    5. Liao, Youqiang & Zheng, Junjie & Wang, Zhiyuan & Sun, Baojiang & Sun, Xiaohui & Linga, Praveen, 2022. "Modeling and characterizing the thermal and kinetic behavior of methane hydrate dissociation in sandy porous media," Applied Energy, Elsevier, vol. 312(C).
    6. Zhao, Qi & Li, Xiao-Sen & Chen, Zhao-Yang & Xia, Zhi-Ming & Xiao, Chang-Wen, 2024. "Numerical investigation of production characteristics and interlayer interference during co-production of natural gas hydrate and shallow gas reservoir," Applied Energy, Elsevier, vol. 354(PA).
    7. Luo, Tingting & Li, Yanghui & Madhusudhan, B.N. & Sun, Xiang & Song, Yongchen, 2020. "Deformation behaviors of hydrate-bearing silty sediment induced by depressurization and thermal recovery," Applied Energy, Elsevier, vol. 276(C).
    8. Wan, Kun & Wu, Tian-Wei & Wang, Yi & Li, Xiao-Sen & Liu, Jian-Wu & Kou, Xuan & Feng, Jing-Chun, 2023. "Large-scale experimental study of heterogeneity in different types of hydrate reservoirs by horizontal well depressurization method," Applied Energy, Elsevier, vol. 332(C).
    9. Yin, Zhenyuan & Wan, Qing-Cui & Gao, Qiang & Linga, Praveen, 2020. "Effect of pressure drawdown rate on the fluid production behaviour from methane hydrate-bearing sediments," Applied Energy, Elsevier, vol. 271(C).
    10. He, Juan & Li, Xiaosen & Chen, Zhaoyang & Huang, Xiaoliang & Shen, Pengfei, 2023. "Effect of heterogeneous hydrate distribution on hydrate production under different hole combinations," Energy, Elsevier, vol. 283(C).
    11. Wang, Jinkai & Feng, Xiaoyong & Wanyan, Qiqi & Zhao, Kai & Wang, Ziji & Pei, Gen & Xie, Jun & Tian, Bo, 2022. "Hysteresis effect of three-phase fluids in the high-intensity injection–production process of sandstone underground gas storages," Energy, Elsevier, vol. 242(C).
    12. Wei, Rupeng & Xia, Yongqiang & Wang, Zifei & Li, Qingping & Lv, Xin & Leng, Shudong & Zhang, Lunxiang & Zhang, Yi & Xiao, Bo & Yang, Shengxiong & Yang, Lei & Zhao, Jiafei & Song, Yongchen, 2022. "Long-term numerical simulation of a joint production of gas hydrate and underlying shallow gas through dual horizontal wells in the South China Sea," Applied Energy, Elsevier, vol. 320(C).
    13. Li, Nan & Zhang, Jie & Xia, Ming-Ji & Sun, Chang-Yu & Liu, Yan-Sheng & Chen, Guang-Jin, 2021. "Gas production from heterogeneous hydrate-bearing sediments by depressurization in a large-scale simulator," Energy, Elsevier, vol. 234(C).
    14. Liang, Wei & Wang, Jianguo & Li, Peibo, 2022. "Gas production analysis for hydrate sediment with compound morphology by a new dynamic permeability model," Applied Energy, Elsevier, vol. 322(C).
    15. Cui, Jin-Long & Cheng, Li-Wei & Kan, Jing-Yu & Pang, Wei-Xin & Gu, Jun-Nan & Li, Kun & Wang, Ling-Ban & Sun, Chang-Yu & Wang, Xiao-Hui & Chen, Guang-Jin & Li, Xing-Xun, 2021. "Study on the spatial differences of methane hydrate dissociation process by depressurization using an L-shape simulator," Energy, Elsevier, vol. 228(C).
    16. Zhu, Huixing & Xu, Tianfu & Yuan, Yilong & Xia, Yingli & Xin, Xin, 2020. "Numerical investigation of the natural gas hydrate production tests in the Nankai Trough by incorporating sand migration," Applied Energy, Elsevier, vol. 275(C).
    17. Hao Peng & Xiaosen Li & Zhaoyang Chen & Yu Zhang & Changyu You, 2022. "Key Points and Current Studies on Seepage Theories of Marine Natural Gas Hydrate-Bearing Sediments: A Narrative Review," Energies, MDPI, vol. 15(14), pages 1-33, July.
    18. Li, Yanghui & Wei, Zhaosheng & Wang, Haijun & Wu, Peng & Zhang, Shuheng & You, Zeshao & Liu, Tao & Huang, Lei & Song, Yongchen, 2024. "Impact of hydrate spatial heterogeneity on gas permeability in hydrate-bearing sediments," Energy, Elsevier, vol. 293(C).

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