Page 279 - Principles of Applied Reservoir Simulation 2E

264 Principles of Applied Reservoir Simulation

7. SOI, SGI, SOR
Omit this record ifKSI = 0.
SOI Initial oil saturation for the oil-water zone to be assigned to
all blocks in the rock region (fraction). Initial water satura-
tion in the oil-water zone is I - SOI.
SGI Initial gas saturation for the gas-water zone to be assigned
to all blocks in the rock region (fraction). Initial water
saturation in the gas-water zone is 1 - SGI.
SOR Irreducible oil saturation to be assigned to all blocks in the
rock region (fraction). If SOR > 0, calculated So will be set
to 0 when So < SOR. Water and gas saturations are then
renormalized.
NOTE: Repeat this record a total of NROCK times - one
record for each Rock region.

24.8 Run Control Parameters
I, Heading Up to 80 characters.

2 NMAX, FACT1, FACT2, TMAX, WORMAX, GORMAX, PAMIN,
PAMAX
NMAX Maximum number of timesteps allowed.
FACT 1 Factor for increasing timestep size using automatic timestep
control. FACT1 = 1.0 for fixed timestep size. A common
value for FACT1 is 1.25.
F ACT2 Factor for decreasing timestep size using automatic timestep
control. FACT2 = 1.0 for fixed timestep size. A common
value for FACT2 is 0.5.
TMAX Maximum elapsed time to be simulated (days); the run will
be terminated when the time exceeds TMAX.
WORMAX Maximum allowed water-oil ratio for a producing oil well
(STB/STB); WORMAX > 0.