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Transient Behavior of Vertical Commingled Well in Vertical Non-Uniform Boundary Radii Reservoir

Author

Listed:
  • Bing Sun

    (SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China)

  • Wenyang Shi

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China
    School of Chemical and Process Engineering, University of Leeds, Leeds LS2 9JT, UK)

  • Rui Zhang

    (SINOPEC Petroleum Exploration and Production Research Institute, Beijing 100083, China)

  • Shiqing Cheng

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China)

  • Chengwei Zhang

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China)

  • Shiying Di

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China)

  • Nan Cui

    (School of Geography, University of Leeds, Leeds LS2 9JT, UK)

Abstract

Transient behavior analysis, including rate transient analysis (RTA) and pressure transient analysis (PTA), is a powerful tool to investigate the production performance of the vertical commingled well from long-term production data and capture the formation parameters of the multilayer reservoir from transient well testing data. Current transient behavior analysis models hardly consider the effect of vertical non-uniform boundary radii (VNBR) on transient performances (rate decline and pressure response). The VNBR may cause an obvious novel radial flow regime and rate decline type, which can easily be mistaken as a radial composite reservoir. In this paper, we present a VNBR transient behavior analysis model, the extended vertical uniform boundary radii (VUBR), to investigate the rate decline behavior and pressure response characteristics through diagnostic type curves. Results indicate that the dimensionless production integral derivative curve or pressure derivative curve can magnify the differences so that we can diagnose the outer-convex shape and size of the VNBR. Therefore, it is significant to incorporate the effects of VNBR into the transient behavior analysis models of the vertical commingled well, and the model proposed in this paper enables us to better evaluate well performance, capture formation characteristics and diagnose flow regimes based on rate/pressure transient data.

Suggested Citation

  • Bing Sun & Wenyang Shi & Rui Zhang & Shiqing Cheng & Chengwei Zhang & Shiying Di & Nan Cui, 2020. "Transient Behavior of Vertical Commingled Well in Vertical Non-Uniform Boundary Radii Reservoir," Energies, MDPI, vol. 13(9), pages 1-13, May.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:9:p:2305-:d:354499
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    References listed on IDEAS

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    1. Xiaoyang Zhang & Xiaodong Wang & Xiaochun Hou & Wenli Xu, 2017. "Rate Decline Analysis of Vertically Fractured Wells in Shale Gas Reservoirs," Energies, MDPI, vol. 10(10), pages 1-24, October.
    2. Mingxian Wang & Zifei Fan & Guoqiang Xing & Wenqi Zhao & Heng Song & Penghui Su, 2018. "Rate Decline Analysis for Modeling Volume Fractured Well Production in Naturally Fractured Reservoirs," Energies, MDPI, vol. 11(1), pages 1-21, January.
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    Cited by:

    1. Chengwei Zhang & Shiqing Cheng & Yang Wang & Gang Chen & Ke Yan & Yongda Ma, 2022. "Rate Transient Behavior of Wells Intercepting Non-Uniform Fractures in a Layered Tight Gas Reservoir," Energies, MDPI, vol. 15(15), pages 1-14, August.

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