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Simulation Study on the Effect of Fracturing Technology on the Production Efficiency of Natural Gas Hydrate

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  • Chen Chen

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

  • Lin Yang

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

  • Rui Jia

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

  • Youhong Sun

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

  • Wei Guo

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

  • Yong Chen

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

  • Xitong Li

    (Engineering College, Jilin University, Changchun 130026, China
    Key Laboratory of Drilling and Exploitation Technology in Complex Conditions, Ministry of Land and Resources, Changchun 130026, China)

Abstract

Natural gas hydrate (NGH) concentrations hold large reserves of relatively pure unconventional natural gases, consisting mainly of methane. Depressurization is emerging as the optimum conversion technology for converting NGH in its reservoir to its constituent water and natural gas. NGH concentrations commonly have a pore fill of over 80%, which means that NGH is a low-permeability reservoir, as NGH has displaced water in terms of porosity. Fracturing technology (fracking) is a technology employed for increasing permeability-dependent production, and has been proven in conventional and tight oil and gas reservoirs. In this work, we carried out numerical simulations to investigate the effects on depressurization efficiency of a variably-fractured NGH reservoir, to make a first order assessment of fracking efficiency. We performed calculations for the variations in original NGH saturation, pressure distribution, CH 4 gas production rate, and cumulative production under different fracturing conditions. Our results show that the rate of the pressure drop within the NGH-saturated host strata increases with increased fracturing. The CH 4 gas production rate and cumulative production are greatly improved with fracturing. Crack quantity and spacing per volume have a significant effect on the improvement of NGH conversion efficiencies. Possibly most important, we identified an optimum fracking value beyond which further fracking is not required.

Suggested Citation

  • Chen Chen & Lin Yang & Rui Jia & Youhong Sun & Wei Guo & Yong Chen & Xitong Li, 2017. "Simulation Study on the Effect of Fracturing Technology on the Production Efficiency of Natural Gas Hydrate," Energies, MDPI, vol. 10(8), pages 1-16, August.
    • Handle: RePEc:gam:jeners:v:10:y:2017:i:8:p:1241-:d:109038
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    References listed on IDEAS

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    Cited by:

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    2. Zhong, Xiuping & Pan, Dongbin & Zhu, Ying & Wang, Yafei & Tu, Guigang & Nie, Shuaishuai & Ma, Yingrui & Liu, Kunyan & Chen, Chen, 2022. "Commercial production potential evaluation of injection-production mode for CH-Bk hydrate reservoir and investigation of its stimulated potential by fracture network," Energy, Elsevier, vol. 239(PB).
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    4. Mao, Peixiao & Wu, Nengyou & Wan, Yizhao & Hu, Gaowei & Wang, Xingxing, 2023. "Optimization of a multi-fractured multilateral well network in advantageous structural positions of ultralow-permeability hydrate reservoirs," Energy, Elsevier, vol. 268(C).
    5. Xu, Jianchun & Qin, Huating & Li, Hangyu & Lu, Cheng & Li, Shuxia & Wu, Didi, 2023. "Enhanced gas production efficiency of class 1,2,3 hydrate reservoirs using hydraulic fracturing technique," Energy, Elsevier, vol. 263(PE).
    6. Jingxuan Zhang & Xiangjun Liu & Xiaochen Wei & Lixi Liang & Jian Xiong & Wei Li, 2019. "Uncertainty Analysis of Factors Influencing Stimulated Fracture Volume in Layered Formation," Energies, MDPI, vol. 12(23), pages 1-24, November.
    7. 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.
    8. Yang, Ming & Wang, Yuze & Wu, Hui & Zhang, Pengwei & Ju, Xin, 2024. "Thermo-hydro-chemical modeling and analysis of methane extraction from fractured gas hydrate-bearing sediments," Energy, Elsevier, vol. 292(C).
    9. Zhang, Yiqun & Zhang, Panpan & Hui, Chengyu & Tian, Shouceng & Zhang, Bo, 2023. "Numerical analysis of the geomechanical responses during natural gas hydrate production by multilateral wells," Energy, Elsevier, vol. 269(C).
    10. Zhong, Xiuping & Pan, Dongbin & Zhu, Ying & Wang, Yafei & Zhai, Lianghao & Li, Xitong & Tu, Guigang & Chen, Chen, 2021. "Fracture network stimulation effect on hydrate development by depressurization combined with thermal stimulation using injection-production well patterns," Energy, Elsevier, vol. 228(C).
    11. Tang, Jizhou & Zhang, Min & Guo, Xuyang & Geng, Jianhua & Li, Yuwei, 2024. "Investigation of creep and transport mechanisms of CO2 fracturing within natural gas hydrates," Energy, Elsevier, vol. 300(C).
    12. Shuaishuai Nie & Chen Chen & Min Chen & Jian Song & Yafei Wang & Yingrui Ma, 2022. "Numerical Evaluation of a Novel Development Mode for Challenging Oceanic Gas Hydrates Considering Methane Leakage," Sustainability, MDPI, vol. 14(21), pages 1-22, November.
    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. Shilong Shang & Lijuan Gu & Hailong Lu, 2021. "The Effects of the Length and Conductivity of Artificial Fracture on Gas Production from a Class 3 Hydrate Reservoir," Energies, MDPI, vol. 14(22), pages 1-13, November.
    15. Wang, Xiaochu & Sun, Youhong & Li, Bing & Zhang, Guobiao & Guo, Wei & Li, Shengli & Jiang, Shuhui & Peng, Saiyu & Chen, Hangkai, 2023. "Reservoir stimulation of marine natural gas hydrate-a review," Energy, Elsevier, vol. 263(PE).
    16. Lin Yang & Chen Chen & Rui Jia & Youhong Sun & Wei Guo & Dongbin Pan & Xitong Li & Yong Chen, 2018. "Influence of Reservoir Stimulation on Marine Gas Hydrate Conversion Efficiency in Different Accumulation Conditions," Energies, MDPI, vol. 11(2), pages 1-16, February.
    17. Li, Shuxia & Wu, Didi & Wang, Xiaopu & Hao, Yongmao, 2021. "Enhanced gas production from marine hydrate reservoirs by hydraulic fracturing assisted with sealing burdens," Energy, Elsevier, vol. 232(C).
    18. Wei Sun & Guiwang Li & Huating Qin & Shuxia Li & Jianchun Xu, 2023. "Enhanced Gas Production from Class II Gas Hydrate Reservoirs by the Multistage Fractured Horizontal Well," Energies, MDPI, vol. 16(8), pages 1-24, April.
    19. Guo, Tiankui & Wang, Yunpeng & Tan, Bijun & Qu, Zhanqing & Chen, Ming & Liu, Xiaoqiang & Hou, Jian, 2024. "Research on productivity of stimulated natural gas hydrate reservoir," Renewable Energy, Elsevier, vol. 225(C).
    20. Guo, Yang & Li, Shuxia & Qin, Xuwen & Lu, Cheng & Wu, Didi & Liu, Lu & Zhang, Ningtao, 2023. "Enhanced gas production from low-permeability hydrate reservoirs based on embedded discrete fracture models: Influence of branch parameters," Energy, Elsevier, vol. 282(C).
    21. Guo, Wei & Zhong, Xiuping & Chen, Chen & Zhang, Pengyu & Liu, Zhao & Wang, Yuan & Tu, Guigang, 2024. "Stimulation effect of network fracturing combined with sealing boundaries on the depressurization development of hydrate reservoir in China's offshore test site," Energy, Elsevier, vol. 302(C).

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