Defining the data in multiple tables

There are six basic types of data that can be input in a CHARACTERISTIC_CURVES block, and each has a keyword which is followed by the name of the table block from which the data is to be taken.

The following example shows the use of keywords like KRW_TABLE to identify which TABLE block is to be used.

CHARACTERISTIC_CURVES ch1

  KRW_TABLE swfn_table
  KRG_TABLE sgfn_table
  KRO ECLIPSE
    KRO_TABLE sof3_table
  END

 TABLE swfn_table
    PRESSURE_UNITS Bar
    EXTERNAL_FILE swfn_file.dat
  END

  TABLE sgfn_table
    PRESSURE_UNITS Pa
    EXTERNAL_FILE sgfn_file.dat
  END

  TABLE sof3_table
    EXTERNAL_FILE sof3_file.dat
  END

/

The following keywords can be used within the CHARACTERISTIC_CURVES block to specify which table a saturation curve must be taken from:

PC_OW_TABLE

Selects the table block to be used for the capillary pressure curve between oil and water, \(P_{cow} =P_o -P_w\).

PC_OW_TABLE <water_sat_property_table_name>

PC_OG_TABLE

Selects the table block to be used for the capillary pressure curve between oil and gas, \(P_{cog} =P_g -P_o\).

PC_OG_TABLE <gas_sat_property_table_name>

KRW_TABLE

Selects the table block to be used for the water relative permeability curve, \(K_{rw}(S_w)\).

KRW_TABLE <water_sat_property_table_name>

KRG_TABLE

Selects the table block to be used for the gas relative permeability curve, \(K_{rg}(S_g)\).:

KRG_TABLE <gas_sat_property_table_name>

KROW_TABLE

Selects the table block to be used for the oil in water relative permeability curve at zero gas saturation, \(K_{row}(S_w,S_o=1-S_w,S_g=0)\).

KROW_TABLE <oil_in_wat_rel_perm_table_name>

KROG_TABLE

Selects the table to be used for the oil in gas relative permeability curve at connate water saturation, \(K_{row}(S_g,S_o=1-S_g-S_{wco},S_w=S_{wco})\).

KROG_TABLE <oil_in_gas_rel_perm_table_name>

For Todd-Longstaff mode runs, KRH_TABLE should be used rather than KROW_TABLE, as it applies to the hydrocarbon saturation \((S_h =S_o +S_s )\) rather than just the oil saturation.