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Acta Geophysica

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Volume 54, Issue 3 (Sep 2006)


Compressibility of porous rocks: Part I. Measurements of Hungarian reservoir rock samples

Ali Jalalh
  • Petroleum Engineering Department, Miskolc University, Miskolc, Hungary
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Published Online: 2006-06-24 | DOI: https://doi.org/10.2478/s11600-006-0025-8


Pore volume compressibility is one of the physical properties of a reservoir that must be specified in many reservoir-engineering calculations. In the presented research, the effect of compact pressure, temperature and porosity on compressibility was investigated. A total of twenty-two different cores were tested: five limestone, one friable sandstone, fourteen medium to hard sandstone, and two very dense sandstone. Core samples were placed in the test cell and subject to compacting pressure up to 10,000 psi. Runs were made at room temperature and at 52°C for limestone samples.

Although there were some publications concerning measurement and study of the effect of pressure and temperature on pore volume compressibility of reservoir rocks, nothing has been published about compressibility of Hungarian reservoir rocks, except of the work of Tóth and Bauer (1988). The present study showed pore volume compressibility data for different Hungarian fields. The result of the study at high temperature (52°C) shows that pore compressibility increases with increasing temperature.

Keywords: pore volume compressibility; rock compressibility; reservoir characterization; rock properties

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  • [8] Jalalh, A.A., and T. Bódi, 2004, Effect of compressibility in calculation of original gas in place (O.G.I.P.), Intern. Sci. Conf. “MicroCad”, University of Miskolc, Hungary.

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About the article

Published Online: 2006-06-24

Published in Print: 2006-09-01

Citation Information: Acta Geophysica, ISSN (Online) 1895-7455, ISSN (Print) 1895-6572, DOI: https://doi.org/10.2478/s11600-006-0025-8. Export Citation

© 2006 Institute of Geophysics, Polish Academy of Sciences. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. (CC BY-NC-ND 3.0)

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