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Study of Unstable Percolation in Low Permeability Deformed Medium Reservoir with Start-Up Pressure Gradient

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Proceedings of the International Field Exploration and Development Conference 2022 (IFEDC 2022)

Part of the book series: Springer Series in Geomechanics and Geoengineering ((SSGG))

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Abstract

Considering start-up pressure gradient, the problem of non Darcy unstable percolation in low permeability deformed medium reservoir is studied. By the homogenization of non-homogeneous boundary conditions and the method of separating variables, the analytical solutions of unstable percolation are obtained under the four boundary conditions of constant injection volume, constant injection pressure, constant production and constant flow pressure. Taking the boundary conditions of constant injection pressure of injection well and constant production of production well as an example, the classical proof of the analytical solution is given. Combined with an example, the reliability and effectiveness of the acquired solution are verified. The calculation results of the analytical solution of unstable percolation are discussed. The effects of pressure-sensitive coefficient and start-up pressure gradient on the characteristics of pressure distribution between injection and production wells are also analyzed.

Copyright 2022, IFEDC Organizing Committee.

This paper was prepared for presentation at the 2022 International Field Exploration and Development Conference in Xi’an, China, 16–18 November 2022.

This paper was selected for presentation by the IFEDC Committee following review of information contained in an abstract submitted by the author(s). Contents of the paper, as presented, have not been reviewed by the IFEDC Technical Team and are subject to correction by the author(s). The material does not necessarily reflect any position of the IFEDC Technical Committee its members. Papers presented at the Conference are subject to publication review by Professional Team of IFEDC Technical Committee. Electronic reproduction, distribution, or storage of any part of this paper for commercial purposes without the written consent of IFEDC Organizing Committee is prohibited. Permission to reproduce in print is restricted to an abstract of not more than 300 words; illustrations may not be copied. The abstract must contain conspicuous acknowledgment of IFEDC. Contact email: paper@ifedc.org.

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Acknowledgments

The project is supported by the Natural Science Foundation of Xinjiang Uygur Autonomous Region (Number 2021D01A202).

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Authors and Affiliations

  1. Department of Science and Arts, China University of Petroleum-Beijing at Karamay, Karamay, Xinjiang, China

    Li-min Yang

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  1. Li-min Yang
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Correspondence to Li-min Yang .

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Editors and Affiliations

  1. College of Petroleum Engineering, Xi’an Shiyou University, Xi’an, Shaanxi, China

    Jia’en Lin

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Yang, Lm. (2023). Study of Unstable Percolation in Low Permeability Deformed Medium Reservoir with Start-Up Pressure Gradient. In: Lin, J. (eds) Proceedings of the International Field Exploration and Development Conference 2022. IFEDC 2022. Springer Series in Geomechanics and Geoengineering. Springer, Singapore. https://doi.org/10.1007/978-981-99-1964-2_189

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  • DOI: https://doi.org/10.1007/978-981-99-1964-2_189

  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-99-1963-5

  • Online ISBN: 978-981-99-1964-2

  • eBook Packages: EngineeringEngineering (R0)

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