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Contribution of capillary forces to the volume of residual oil pillars

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Abstract

Equations for calculating the limiting equilibrium shapes of the residual oil pillars in homogeneous and stratified inhomogeneous reservoirs of varying wettability are written within the framework of a two-phase displacement model with allowance for capillary pressure. Comparative calculations for an individual well in a circular reservoir show that, in general, the effect of capillary pressure on the shape and volume of the pillars is not negligibly small and may reach 10% of the pore volume.

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Authors and Affiliations

  1. Tomsk

    V. N. Pankov

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  1. V. N. Pankov
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Translated from Izvestiya Akademii Nauk SSSR, Mekhanika Zhidkosti i Gaza, No. 1, pp. 114–123, January–February, 1991.

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Pankov, V.N. Contribution of capillary forces to the volume of residual oil pillars. Fluid Dyn 26, 94–101 (1991). https://doi.org/10.1007/BF01050119

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  • DOI: https://doi.org/10.1007/BF01050119

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