A rigorous tie-line extension criterion for the minimum miscibility pressure (MMP) is derived for dispersion-free, 1D displacements in four-component systems in which CO2 displaces oil containing dissolved methane. The key tie-lines required for application of the MMP criterion are obtained by a simple graphical construction. A simplified technique for construction of solutions is demonstrated for the CO2/methane/butane/decane system. The new technique makes solution of certain four-component problems not much more difficult than solution of a Buckley-Leverett displacement of oil by water.
|Original language||English (US)|
|Number of pages||8|
|Journal||SPE Reservoir Engineering (Society of Petroleum Engineers)|
|State||Published - Jan 1 1993|
All Science Journal Classification (ASJC) codes
- Process Chemistry and Technology