Model designation

A

B

Grid points in the horizontal direction (m + 1)

21

21

Grid points in the vertical direction (n + 1)

11

21

Coherent waves of water saturation

28

28

Initial number of points per coherent wave

Water

Surfactant

41

81

41

81

Maximum number of points required per coherent wave

≈300

≈300

Average time step size (days)

Short reservoir (100 ft)

200 mD streak

1000 mD streak

Long reservoir (5000 ft)

200 mD streak

1000 mD sreak

3.47

0.69

174.0

34.7

3.47

0.69

174.0

34.7

Typical number of time steps required to inject first pore volume

Short reservoir

Long reservoir

33

75

33

75