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Pressure Transient Analysis for Finite Conductivity Multi-staged Fractured Horizontal Well in Fractured-Vuggy Carbonate Reservoirs

Received: 12 August 2015     Accepted: 17 May 2016     Published: 30 June 2016
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Abstract

Transient pressure analysis has been considered as a robust method to identify the flow behaviors, estimate reservoir parameters and hydraulic fracturing parameters. Compared with conventional clastic reservoirs, complex pore systems in fractured–vuggy carbonate reservoirs are posing significant research challenges. Although pressure transient analysis(PTA) models for different style wells in carbonate reservoirs have been widely studied, limited study has been conducted for multi-fractured horizontal well (MFHW) in these reservoirs. Thus, this paper is an investigation on PTA for MFHW of fractured-vuggy carbonate reservoirs. Based on source function theory, mirrors reflection and superposition principle,, the finite conductive MFHW’s bottom-hole pressure solution for fractured-vuggy carbonate reservoirs is obtained by the Laplace transform and the Stehfest inversion method. Log-log type curves are drawn by numerical algorithms and eight flow regimes are identified. Finally the influences of sensitivity parameters such as fracture number, fracture spacing, half length of fracture, storativity ratio, inter-porosity flow coefficient on unsteady flow behaviors of MFHW are discussed in depth.

Published in International Journal of Oil, Gas and Coal Engineering (Volume 4, Issue 1-1)

This article belongs to the Special Issue Advances in Modeling of Fluids Flow in Porous Media

DOI 10.11648/j.ogce.s.2016040101.11
Page(s) 1-7
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2016. Published by Science Publishing Group

Keywords

Fractured-Vuggy Carbonate Reservoir, Multi-fractured Horizontal Well, Finite Conductive, Transient Pressure

References
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Cite This Article
  • APA Style

    Mingqiang Wei, Yonggang Duan, Xuemei Zhou, Quantang Fang. (2016). Pressure Transient Analysis for Finite Conductivity Multi-staged Fractured Horizontal Well in Fractured-Vuggy Carbonate Reservoirs. International Journal of Oil, Gas and Coal Engineering, 4(1-1), 1-7. https://doi.org/10.11648/j.ogce.s.2016040101.11

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    ACS Style

    Mingqiang Wei; Yonggang Duan; Xuemei Zhou; Quantang Fang. Pressure Transient Analysis for Finite Conductivity Multi-staged Fractured Horizontal Well in Fractured-Vuggy Carbonate Reservoirs. Int. J. Oil Gas Coal Eng. 2016, 4(1-1), 1-7. doi: 10.11648/j.ogce.s.2016040101.11

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    AMA Style

    Mingqiang Wei, Yonggang Duan, Xuemei Zhou, Quantang Fang. Pressure Transient Analysis for Finite Conductivity Multi-staged Fractured Horizontal Well in Fractured-Vuggy Carbonate Reservoirs. Int J Oil Gas Coal Eng. 2016;4(1-1):1-7. doi: 10.11648/j.ogce.s.2016040101.11

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  • @article{10.11648/j.ogce.s.2016040101.11,
      author = {Mingqiang Wei and Yonggang Duan and Xuemei Zhou and Quantang Fang},
      title = {Pressure Transient Analysis for Finite Conductivity Multi-staged Fractured Horizontal Well in Fractured-Vuggy Carbonate Reservoirs},
      journal = {International Journal of Oil, Gas and Coal Engineering},
      volume = {4},
      number = {1-1},
      pages = {1-7},
      doi = {10.11648/j.ogce.s.2016040101.11},
      url = {https://doi.org/10.11648/j.ogce.s.2016040101.11},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ogce.s.2016040101.11},
      abstract = {Transient pressure analysis has been considered as a robust method to identify the flow behaviors, estimate reservoir parameters and hydraulic fracturing parameters. Compared with conventional clastic reservoirs, complex pore systems in fractured–vuggy carbonate reservoirs are posing significant research challenges. Although pressure transient analysis(PTA) models for different style wells in carbonate reservoirs have been widely studied, limited study has been conducted for multi-fractured horizontal well (MFHW) in these reservoirs. Thus, this paper is an investigation on PTA for MFHW of fractured-vuggy carbonate reservoirs. Based on source function theory, mirrors reflection and superposition principle,, the finite conductive MFHW’s bottom-hole pressure solution for fractured-vuggy carbonate reservoirs is obtained by the Laplace transform and the Stehfest inversion method. Log-log type curves are drawn by numerical algorithms and eight flow regimes are identified. Finally the influences of sensitivity parameters such as fracture number, fracture spacing, half length of fracture, storativity ratio, inter-porosity flow coefficient on unsteady flow behaviors of MFHW are discussed in depth.},
     year = {2016}
    }
    

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  • TY  - JOUR
    T1  - Pressure Transient Analysis for Finite Conductivity Multi-staged Fractured Horizontal Well in Fractured-Vuggy Carbonate Reservoirs
    AU  - Mingqiang Wei
    AU  - Yonggang Duan
    AU  - Xuemei Zhou
    AU  - Quantang Fang
    Y1  - 2016/06/30
    PY  - 2016
    N1  - https://doi.org/10.11648/j.ogce.s.2016040101.11
    DO  - 10.11648/j.ogce.s.2016040101.11
    T2  - International Journal of Oil, Gas and Coal Engineering
    JF  - International Journal of Oil, Gas and Coal Engineering
    JO  - International Journal of Oil, Gas and Coal Engineering
    SP  - 1
    EP  - 7
    PB  - Science Publishing Group
    SN  - 2376-7677
    UR  - https://doi.org/10.11648/j.ogce.s.2016040101.11
    AB  - Transient pressure analysis has been considered as a robust method to identify the flow behaviors, estimate reservoir parameters and hydraulic fracturing parameters. Compared with conventional clastic reservoirs, complex pore systems in fractured–vuggy carbonate reservoirs are posing significant research challenges. Although pressure transient analysis(PTA) models for different style wells in carbonate reservoirs have been widely studied, limited study has been conducted for multi-fractured horizontal well (MFHW) in these reservoirs. Thus, this paper is an investigation on PTA for MFHW of fractured-vuggy carbonate reservoirs. Based on source function theory, mirrors reflection and superposition principle,, the finite conductive MFHW’s bottom-hole pressure solution for fractured-vuggy carbonate reservoirs is obtained by the Laplace transform and the Stehfest inversion method. Log-log type curves are drawn by numerical algorithms and eight flow regimes are identified. Finally the influences of sensitivity parameters such as fracture number, fracture spacing, half length of fracture, storativity ratio, inter-porosity flow coefficient on unsteady flow behaviors of MFHW are discussed in depth.
    VL  - 4
    IS  - 1-1
    ER  - 

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Author Information
  • State Key Laboratory of Oil and Gas Reservoirs Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan Province, PR China

  • State Key Laboratory of Oil and Gas Reservoirs Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan Province, PR China

  • Shell China Exploration and Production Co, Chengdu, Sichuan Province, PR China

  • State Key Laboratory of Oil and Gas Reservoirs Geology and Exploitation, Southwest Petroleum University, Chengdu, Sichuan Province, PR China

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