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A Fully Three Dimensional Semianalytical Model for Shale Gas Reservoirs with Hydraulic Fractures

Author

Listed:
  • Yuwei Li

    (Department of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China
    These authors contribute equally to this manuscript.)

  • Lihua Zuo

    (Harold Vance Department of Petroleum Engineering, Texas A&M University, 3116 TAMU, College Station, TX 77843, USA
    These authors contribute equally to this manuscript.)

  • Wei Yu

    (Harold Vance Department of Petroleum Engineering, Texas A&M University, 3116 TAMU, College Station, TX 77843, USA)

  • Youguang Chen

    (Department of Petroleum and Geosystems Engineering, University of Texas at Austin, Austin, TX 78705, USA)

Abstract

Two challenges exist for modeling gas transport in shale. One is the existence of complex gas transport mechanisms, and the other is the impact of hydraulic fracture networks. In this study, a truly three dimensional semianalytical model was developed for shale gas reservoirs with hydraulic fractures of various shapes. Using the instantaneous point source solution, the pressure are solved for a bounded reservoir with fully 3D, partially penetrated hydraulic fractures of different strike angles and dip angles. The fractures could have various shapes such as rectangles, disks and ellipses. The shale gas diffusion equations considers complex transport mechanism such as gas slippage and gas diffusion. This semianalytical model is verified with a commercial software and an analytical method for single fully penetrated rectangle fracture, and the production results of shale gas are consistent. The impacts of fracture height and strike angles are investigated by five systematically constructed models. The comparison shows that the production increases proportionally with the fracture height, and decreases with the increase of strike angles. The method proposed in this study could also be applied in well testing to analyze the reservoir properties and used to forecast the production for tight oil and conventional resources.

Suggested Citation

  • Yuwei Li & Lihua Zuo & Wei Yu & Youguang Chen, 2018. "A Fully Three Dimensional Semianalytical Model for Shale Gas Reservoirs with Hydraulic Fractures," Energies, MDPI, vol. 11(2), pages 1-19, February.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:436-:d:132050
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    References listed on IDEAS

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    1. Yongbin Zhang & Bin Gong & Junchao Li & Hangyu Li, 2015. "Discrete Fracture Modeling of 3D Heterogeneous Enhanced Coalbed Methane Recovery with Prismatic Meshing," Energies, MDPI, vol. 8(6), pages 1-24, June.
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    Cited by:

    1. Jingnan Dong & Mian Chen & Yuwei Li & Shiyong Wang & Chao Zeng & Musharraf Zaman, 2019. "Experimental and Theoretical Study on Dynamic Hydraulic Fracture," Energies, MDPI, vol. 12(3), pages 1-22, January.
    2. Jia Liu & Jianguo Wang & Chunfai Leung & Feng Gao, 2018. "A Fully Coupled Numerical Model for Microwave Heating Enhanced Shale Gas Recovery," Energies, MDPI, vol. 11(6), pages 1-28, June.
    3. Fengjiao Wang & Yikun Liu & Chaoyang Hu & Anqi Shen & Shuang Liang & Bo Cai, 2018. "A Simplified Physical Model Construction Method and Gas-Water Micro Scale Flow Simulation in Tight Sandstone Gas Reservoirs," Energies, MDPI, vol. 11(6), pages 1-16, June.
    4. Suran Wang & Linsong Cheng & Yongchao Xue & Shijun Huang & Yonghui Wu & Pin Jia & Zheng Sun, 2018. "A Semi-Analytical Method for Simulating Two-Phase Flow Performance of Horizontal Volatile Oil Wells in Fractured Carbonate Reservoirs," Energies, MDPI, vol. 11(10), pages 1-21, October.
    5. Han Cao & Tianyi Wang & Ting Bao & Pinghe Sun & Zheng Zhang & Jingjing Wu, 2018. "Effective Exploitation Potential of Shale Gas from Lower Cambrian Niutitang Formation, Northwestern Hunan, China," Energies, MDPI, vol. 11(12), pages 1-18, December.
    6. Maojun Cao & Yu Dai & Ling Zhao & Yuele Jia & Yueru Jia, 2018. "Hybrid Coupled Multifracture and Multicontinuum Models for Shale Gas Simulation by Use of Semi-Analytical Approach," Energies, MDPI, vol. 11(5), pages 1-20, May.

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