Page 259 - Principles of Applied Reservoir Simulation 2E

244 Principles of Applied Reservoir Simulation

NOTE: NUMDZN records must be read.

24.1.3 Depths to Top of Gridblocks
The coordinate system used in WINB4D is defined so that values in the
z (vertical) direction increase as the layer gets deeper. Thus, depths must be read
as depths below the user-selected reference datum. Negative values will be read
as heights above the datum.

1. Heading Up to 80 characters.

2. KEL
KEL Control code for input of depth values.

KEL Meaning
A single constant value is read for the depth to the top of all grid-
blocks in layer 1 (horizontal plane). Each layer is contiguous in this
0 option. Depths to the top of gridblocks in layers below layer 1 are
calculated by adding the layer thickness to the preceding layer top;
thus Top (I, J, K + 1) = Top (I, J, K) + DZ (I, J, K)
A separate depth value must be read for each gridblock in layer 1 .
Read II x JJ values. Each layer is contiguous in this option. Depths
1 to the top of gridblocks in layers below layer 1 are calculated by
adding the layer thickness to the preceding layer top; thus Top (I, J,
K + 1 ) = Top (I, J, K) + DZ (I, J, K)
A separate depth value is read for each layer. Read KK values. Each
2
layer is horizontal (layer cake) in this option.
A separate depth value is read for each gridblock. Read II x JJ x KK
3
values.

3. ELEV
ELEV Depth to top of gridblock (ft).
If KEL = 0, read one constant value.
If KEL = 1, read II x JJ values (one for each block in layer 1).
If KEL = 2, read KK values (one for each layer).
If KEL = 3, read II x JJ x KK values (one for each block).