TY - JOUR
T1 - Combustion in miscible displacement for high-pressure air injection
AU - Gargar, N. Khoshnevis
AU - Bruining, J.
AU - Kokubun, M. A.Endo
AU - Marchesin, D.
AU - Mailybaev, A. A.
PY - 2020
Y1 - 2020
N2 - This paper describes miscible displacement upon air injection in a porous medium saturated with oil corresponding to conditions of high-pressure air injection (HPAI). We assume that injection fluids and produced fluids are fully miscible with the oil at the prevailing high pressure. We use three pseudo-components, viz., oxygen, oil, and an inert component, which includes nitrogen, carbon dioxide, etc. To model the fingering instabilities, we follow a similar procedure as proposed by Koval (SPE J. 3(02):145–154, 1963) and include the reaction between oxygen and oil in the Koval model. The equations are solved numerically, using a finite element software package (COMSOL). The results show that a combustion wave is formed. We study the performance at low and high viscosities and show that the reaction improves the speed and degree of recovery at later times.
AB - This paper describes miscible displacement upon air injection in a porous medium saturated with oil corresponding to conditions of high-pressure air injection (HPAI). We assume that injection fluids and produced fluids are fully miscible with the oil at the prevailing high pressure. We use three pseudo-components, viz., oxygen, oil, and an inert component, which includes nitrogen, carbon dioxide, etc. To model the fingering instabilities, we follow a similar procedure as proposed by Koval (SPE J. 3(02):145–154, 1963) and include the reaction between oxygen and oil in the Koval model. The equations are solved numerically, using a finite element software package (COMSOL). The results show that a combustion wave is formed. We study the performance at low and high viscosities and show that the reaction improves the speed and degree of recovery at later times.
KW - High-pressure air injection
KW - In-situ combustion
KW - Koval model
KW - Miscible displacement
KW - Porous media
UR - http://www.scopus.com/inward/record.url?scp=85086093125&partnerID=8YFLogxK
U2 - 10.1007/s10596-020-09977-y
DO - 10.1007/s10596-020-09977-y
M3 - Article
AN - SCOPUS:85086093125
SN - 1420-0597
VL - 24
SP - 1663
EP - 1672
JO - Computational Geosciences
JF - Computational Geosciences
IS - 4
ER -