TOPS
Recognised by the OPM Flow parserGRID
TOPS defines the depth of the top face of each cell in the model.
It can only be used with the Cartesian Regular Grid or Radial Grid models.
Notes:
The keyword is terminated by a “/”.
See also the DEPTHS keyword to define the structural depth for the cells.
- Records
- An array of values covering the grid
Parameters
| No. | Name | Description | Field | Metric | Lab | Default |
|---|---|---|---|---|---|---|
| 1 | TOPS | TOPS is an array of real numbers defining the depth at the top face of each cell in the model. One can either just enter the TOPS for the first layer only based on NX x NY entries and OPM Flow will calculate the remaining TOPS based on either DZ or DZV. Alternatively NX x NY x NZ TOPS may be entered for each cell in the model. See the DIMENS keyword in the RUNSPEC section for the definition of NX, NY and NZ. Repeat counts may be used, for example 10*5201.0. | feet | m | cm | None |
Example
The example below defines the TOPS of the cells for each cell for NX = 5, NY = 5 and NZ = 3 model, as well as the X and Y direction cells sizes.
--
-- DEFINE GRID BLOCK TOPS FOR THE TOP LAYER (NX=5, NY=5, and NZ=3)
--
TOPS
25*3100 25*3105 25*3110 / --
-- DEFINE GRID BLOCK X DIRECTION CELL SIZE (BASED ON NX = 5)
--
DXV
5*100 / --
-- DEFINE GRID BLOCK X DIRECTION CELL SIZE (BASED ON NY = 5)
--
DYV
5*100 /
A second example is shown on the following page.
This example defines the same grid as before but with the TOPS keyword only defining the top layer and DZV keyword defining the cells thickness.
--
-- DEFINE GRID BLOCK TOPS FOR THE TOP LAYER (NX = 5, NY = 5, NZ = 3)
--
TOPS
25*3100 /
--
-- DEFINE GRID BLOCK Z DIRECTION CELL SIZE (BASED ON NZ = 3)
--
DZV
3*5.0 /
--
-- DEFINE GRID BLOCK X DIRECTION CELL SIZE (BASED ON NX = 5)
--
DXV
5*100 / --
-- DEFINE GRID BLOCK Y DIRECTION CELL SIZE (BASED ON NY = 5)
--
DYV
5*100 /Manual source: parts/chapters/subsections/6.3/TOPS.fodt