TY - JOUR
T1 - Further discussion of methodology for the specification of solvent blends for miscible enriched-gas drives
AU - Poettmann, F. H.
AU - Christiansen, R. L.
AU - Mihcakan, I. M.
PY - 1992/5
Y1 - 1992/5
N2 - When an injected gas comes into contact with a reservoir oil, mass transfer of individual components in both fluids takes place. With injection of a dry gas, miscibility develops by vaporization at the leading edge of the gas front. This process we call a leading-edge, or forward-contact, vaporizing process. We have recently completed a study of the effect of temperature on minimum miscibility pressure (MMP) for a crude oil using CO2 as the injected gas. The enrichment of the CO2 with only 6% normal butane lowered the MMP from 290 to 520 psi, depending on the temperature. With CO2, the process was a leading edge, or forward contact, vaporizing process, whereas adding only 6% normal butane to the injected CO2 caused the process to be a trailing-edge, or swept-zone, condensing process.
AB - When an injected gas comes into contact with a reservoir oil, mass transfer of individual components in both fluids takes place. With injection of a dry gas, miscibility develops by vaporization at the leading edge of the gas front. This process we call a leading-edge, or forward-contact, vaporizing process. We have recently completed a study of the effect of temperature on minimum miscibility pressure (MMP) for a crude oil using CO2 as the injected gas. The enrichment of the CO2 with only 6% normal butane lowered the MMP from 290 to 520 psi, depending on the temperature. With CO2, the process was a leading edge, or forward contact, vaporizing process, whereas adding only 6% normal butane to the injected CO2 caused the process to be a trailing-edge, or swept-zone, condensing process.
UR - http://www.scopus.com/inward/record.url?scp=0026865535&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0026865535
SN - 0885-9248
VL - 7
SP - 294
JO - SPE Reservoir Engineering
JF - SPE Reservoir Engineering
IS - 2
ER -
