The influence of the hysteresis relative permeability on the numerical estimate of the effectiveness of water-alternating-gas injection

Kobyashev A.V. “Tyumen petroleum research center” LLC Tyumen
Pyatkov A.A. aapyatkov@tnnc.rosneft.ru “Tyumen petroleum research center” LLC Tyumen
Dubrovin A.V. “Tyumen petroleum research center” LLC Tyumen
Zakharenko V.A. “Tyumen petroleum research center” LLC Tyumen
DOI: 10.24412/2076-6785-2023-1-41-45

Abstract
The work is devoted to the study of the effect of the hysteresis of relative permeability on the numerical evaluation of the effectiveness of water-alternating-gas (WAG) effects on models of various scales: a one-dimensional model of the core column (evaluation of the effect of the hysteresis of the core column on the quality of model adaptation to the results of flow experiments on core columns in the absence of gravity), a two-dimensional synthetic model of two wells (evaluation of the effect of hysteresis relative permeability for the amount of additional oil production in the presence of gravity), three-dimensional full-scale model of the deposit (evaluation of the effect of the hysteresis relative permeability on the efficiency of the WAG).

Materials and methods
Materials: results of core experiments on oil displacement by gas and water fringes. Methods: numerical simulation using the Eclipse 300 hydrodynamic simulator.

Keywords
hysteresis relative permeability, oil and gas miscibility, efficiently of WAG
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