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A New Well Test Model for Stress-Sensitive and Radially Heterogeneous Dual-Porosity Reservoirs with Non-Uniform Thicknesses

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Abstract

This article presents a new well test model for stress-sensitive composite dual-porosity reservoirs based on the concept of permeability modulus, where the rock and fluid properties as well as the formation thickness vary in the radial direction. An analytical solution in the Laplace space for the pressure-transient behavior for a line-source, constant-rate well of this type of reservoir is obtained with the Laplace transformation and the perturbation technique. The pressure and its derivative in the reservoir and the effects of relevant parameters on the pressure-transient response are obtained. The model as well as the corresponding type curves may be used in predicting the production performance or analyzing the production data for this type of reservoir.

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Authors and Affiliations

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

    Lie-hui Zhang, Jing-jing Guo & Qi-guo Liu

Authors
  1. Lie-hui Zhang
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  2. Jing-jing Guo
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  3. Qi-guo Liu
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Corresponding author

Correspondence to Lie-hui Zhang.

Additional information

Project supported by the National Key Basic Research Project of China (973 Program, Grant No. 2011CB201005), the Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20105121110006) and the National Science Fund for Distinguished Young Scho- lars of China (Grant No. 51125019).

Biography: ZHANG Lie-hui (1967-), Male, Ph. D., Professor

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Zhang, Lh., Guo, Jj. & Liu, Qg. A New Well Test Model for Stress-Sensitive and Radially Heterogeneous Dual-Porosity Reservoirs with Non-Uniform Thicknesses. J Hydrodyn 23, 759–766 (2011). https://doi.org/10.1016/S1001-6058(10)60174-6

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  • DOI: https://doi.org/10.1016/S1001-6058(10)60174-6

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