Evaluation of temperature effect on displacement coefficient and permeability of high-viscous oil carbonate reservoirs by the results of laboratory studies
UDC: 622.276.652
DOI: 10.33285/2413-5011-2022-9(369)-69-75
Authors:
LESINA NATALIA V.1,
OSADCHAYA NADEZHDA S.1,
POPOV EVGENIY YU.
1,
SLAVKINA OLGA V.1
1 LUKOIL-Engineering LLC, Moscow, Russia
Keywords: high-viscous oil, carbonate reservoirs, thermal methods for enhanced oil recovery, laboratory studies, relative permeability, oil displacement coefficient
Annotation:
The article analyzes the results of unique laboratory tests aimed to determine the oil displacement coefficient (Cdis) and relative phase permeability (RFP) depending on the temperature of the injected heat transfer agent. The tests were conducted in 2021 on the initiative and under the guidance of the authors of this article in the Laboratory of the Center of hydrocarbons production of Skolkovo Institute of Science and Technology on the core model of a carbonate reservoir of a high-viscous oil field in Samara region. The world experience of carbonate reservoirs similar testing was analyzed and the results were compared. The effect of the displacement coefficient (Cdis) increase on the temperature rise, revealed during the studies, was mentioned in many scientific articles, however the effect of relative and absolute permeability decrease with the temperature rise is determined and quantified for the first time.
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