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Journal of Mining Science

, Volume 45, Issue 1, pp 22–31 | Cite as

Hydrodynamic characterization and dimensioning of the dilatant-plastic zone around an oil well

  • T. K. Ramazanov
  • M. G. Khanbabaeva
Geomechanics
  • 30 Downloads

Abstract

Unsteady filtration of fluid around a well is numerically modeled in an elasto-plastic medium under the Mohr-Coulomb yield condition and unassociated flow rule. The paper presents equations to calculate porosity, stratum permeability, porous pressure, returns rate under unsteady fluid filtration and the dilatant-plastic zone dimension.

Keywords

Mohr-Coulomb yield condition dilatancy relation actual stresses automodel variable 

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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  1. 1.Baku State UniversityBakuAzerbaijan
  2. 2.Institute of GeologyAzerbaijan National Academy of SciencesBakuAzerbaijan

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