«Oilfield engineering»

Аnalysis of the effectiveness of steam-gas exposure technology at a high-viscous oil field as a method of enhanced oil recovery in comparison with cyclic steam stimulation

UDC: 622.276.65
DOI: -

Authors:

¹ LUKOIL-Engineering, Moscow, Russia

Keywords: thermal methods of high-viscous oil production, steam-gas exposure, cycling steam stimulation, hydrodynamic modeling

Annotation:

The authors of the article consider the justification of the effectiveness of the steam-gas exposure at a high-viscosity oil field in the Samara region as a method of increasing oil recovery in comparison with cyclic steam stimulation. Steam-gas exposure is a method aimed at increasing oil recovery by heating the reservoir, improving the ratio of oil and water mobility, as well as maintaining reservoir pressure using a steam-gas mixture. The authors of the article carried out multivariate calculations of steam and gas effects based on hydrodynamic modeling in the CMG software product with varying parameters such as the composition of the mixture and the rate of coolant injection. The purpose of the article is to create an effective combined technology for the development of high-viscous oil. Based on the results of the analysis of the calculations carried out, the factors of the efficiency of a steam-gas mixture injection were identified and the optimal variant of the steam-gas effect implementation was determined, which can serve as an alternative to the traditional method of increasing oil recovery in the fields of the Samara region – cyclic steam stimulation of the producing well.

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