The effect of oil PVT-properties and critical gas saturation on the gas oil ratio during the development of oil reservoirs

Islamov R.R., islamovrr@bnipi.rosneft.ru “RN-BashNIPIneft” LLC (“Rosneft” PJSC Group Company) Ufa
Muslimov B.Sh., “RN-BashNIPIneft” LLC (“Rosneft” PJSC Group Company) Ufa
Kulesh V.A., “RN-BashNIPIneft” LLC (“Rosneft” PJSC Group Company) Ufa
Yalayev A.V., “RN-BashNIPIneft” LLC (“Rosneft” PJSC Group Company) Ufa
Seredin K.I. “RN-BashNIPIneft” LLC (“Rosneft” PJSC Group Company) Ufa
DOI: 10.24412/2076-6785-2024-4-34-39

Abstract
In this paper are presented the results of calculations using hydrodynamic models carried out to study the behavior of the dynamics of the gas oil ratio during the development of an oil reservoir without maintaining reservoir pressure or with incomplete reservoir pressure maintenance.
It is shown that under conditions of incomplete compensation of reservoir pressure, depending on geological factors, the gas oil ratio can exceed the initial gas solubility by one or several orders of magnitude in case of developing a saturated oil reservoir.
The paper reflects the main tasks that were solved in the course of the work, and the obtained results.

Materials and methods
The effect of geological characteristics on dynamics of the gas oil ratio was investigated using multivariate computational hydrodynamic modeling.

Keywords
associated petroleum gas, dissolved gas, gas oil ratio, hydrodynamic modeling
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