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Pressure dynamics of asymmetrically fractured wells in an arbitrarily shaped reservoir

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Abstract

A numerical model is established and with the model, the boundary element method and the coupled boundary/finite element method are used to analyze the pressure dynamics of an asymmetrically fractured well in an arbitrarily shaped reservoir. The equation is solved in the Laplace domain, with different flow regimes with or without considerations of the wellbore storage and skin effects. The parameter sensitivity analyses, including the asymmetry factor, the fracture conductivity, the outer boundary shape, the boundary size and the well location, are conducted. The model is validated by comparing the results with those of analytical solutions of two simplified cases and a field case study. The study can be used for the well testing interpretation and the hydraulic fracturing design.

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Acknowledgements

This work was supported by the PetroChina Innovation Foundation (Grant No. 2018D-5007-0218), the 111 Project (Grant No. D18016).

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Authors and Affiliations

  1. State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, 610500, China

    Yu-long Zhao, Bao-chao Shan & Lie-hui Zhang

  2. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan, 430074, China

    Bao-chao Shan

Authors
  1. Yu-long Zhao
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  2. Bao-chao Shan
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  3. Lie-hui Zhang
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Corresponding author

Correspondence to Yu-long Zhao.

Additional information

Project supported by the National Naturel Science Foundation of China (Key Program) (Grant No. 51534006), the National Natural Science Foundation of China (Grant Nos. 51704247, 51874251).

Biography: Yu-long Zhao (1986-), Male, Ph. D., Associate Professor

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Zhao, Yl., Shan, Bc. & Zhang, Lh. Pressure dynamics of asymmetrically fractured wells in an arbitrarily shaped reservoir. J Hydrodyn 31, 767–777 (2019). https://doi.org/10.1007/s42241-018-0166-7

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  • DOI: https://doi.org/10.1007/s42241-018-0166-7

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