Rock/Soil Zonation Options (EOR-BO)

The Rock/Soil Zonation Card is used to associate rock/soil types with grid cells.  There are three basic options for declaring the distribution of rock/soil types: explicit zonation, external files, or IJK Indexing.

Explicit Zonation

The explicit zonation option is best suited for simulations with a limited number of rock/soil types.  The approach is to define rock/soil names and then associate those names with a spatial zone across the computational domain.  Rock/soil names are generally unrestricted, but need to be less than 64 characters in length.  Intrinsic properties of the defined rock/soil types will then be associated with the grid cells within the spatial zone on other input cards (e.g., Hydraulic Properties Card, Mechanical Properties Card, Thermal Properties Card).  Spatial zones are specified using ranges of indices in the three local grid directions.

External Files

The external file option is similar to the explicit zonation option, but the association of define rock/soil types with grid cells is via the external file.  The external files contain one integer for every grid cell, using conventional i, j, k ordering.  The integer corresponds with one of the defined rock/soil types.  A value of 0 is used to indicate that the grid cell is inactive.

Formatted (ASCII) Files

Formatted files are text files that can be read by conventional text readers.

Unformatted (Binary) Files

Unformatted files are binary files that must be created with the same operating system and occasionally executable created with the same Fortran compiler as that used to compile and link the STOMP source code.

IJK Indexing

IJK Indexing

The IJK Indexing option (IJK Indexing sub-option) assumes that every node will have a unique rock/soil type, with the rock/soil type number being determined by the i, j, k indexing of the grid cells.  With this option the intrinsic properties of the rock/soil types can be specified uniquely for each grid cell via external file reads or uniformly via conventional inputs.  Some operational modes additionally allow a hybrid IJK Indexing and Zonation specification of the saturation and relative permeability intrinsic parameters. 

JKI Indexing

The IJK Indexing option (JKI Indexing sub-option) assumes that every node will have a unique rock/soil type, with the rock/soil type number being determined by the j, k, i indexing of the grid cells.  With this option the intrinsic properties of the rock/soil types can be specified uniquely for each grid cell via external file reads or uniformly via conventional inputs.  Some operational modes additionally allow a hybrid IJK Indexing and Zonation specification of the saturation and relative permeability intrinsic parameters. 

KIJ Indexing

The IJK Indexing option (KIJ Indexing sub-option) assumes that every node will have a unique rock/soil type, with the rock/soil type number being determined by the k, i, j indexing of the grid cells.  With this option the intrinsic properties of the rock/soil types can be specified uniquely for each grid cell via external file reads or uniformly via conventional inputs.  Some operational modes additionally allow a hybrid IJK Indexing and Zonation specification of the saturation and relative permeability intrinsic parameters.