Rock-Fluid Data view

Relative permeability data contains one or more RelPerm regions. The regions are associated with the simulation grid through the ECLIPSE™ property SATNUM. Each relative permeability region may be associated with a different part of the simulation grid.

The master table for the view contains a row for each RelPerm region.  It contains the following columns:

Active  Determines whether RelPerm region is active.  Inactive regions are not written to the deck.

Name  Name of the RelPerm region.  This is used internally and not copied to the deck.

Region ID  ID of region used in the deck.  The ROCKTYPE reservoir property uses this ID to connect the RelPerm region to a grid cell.

Important  Make sure you undertake the following rules before assigning the Region ID. An error message is displayed if a rule is broken.

1. The Region ID must have a value greater than or equal to 1.

2. The active Region ID numbers must start with 1 and have values increasing by 1.

3. Active models must not have unique Region ID numbers.

The seven tabs on the view define seven separate tables.  There are two groups of tables. The first group consists of the tables in the first three tabs (the comparative saturation tables). The other group contains the individual saturation definitions for water, gas and oil (both 2 and 3 phase). Only one set or the other can be used to define the RelPerm region.

Water/Oil Saturation vs Water Saturation tab

The table contains the following fields:

SW  Water ratio.

KRW  Water relative permeability. Required.

KROW  Water/Oil relative permeability. Required. Set to zero in a gas/water system.

PCWO  Drainage capillary pressure in an oil/water system. Optional.

Gas/Oil Saturation vs Gas Saturation tab

The Gas/Oil Saturation vs Gas Saturation table has the following fields:

SG  Gas saturation.

KRG  Gas relative permeability. Required.

KROG  Gas/oil relative permeability. Required. Set to 0 in a gas water system.

PCGO  Gas/oil capillary pressure. Optional.

Gas/Oil Saturation vs Liquid Saturation tab

The Gas/Oil Saturation vs Liquid Saturation table has the following fields.

SLIQ  Liquid saturation. Required.

KRG  Gas relative permeability. Required.

KROG  Gas/oil relative permeability. Required. Set to 0 for a gas/water system.

PCGO  Gas/oil capillary pressure.

Water Saturation tab

The Water Saturation table defines the following fields:

SW  Water saturation. Required.

KRW  Water relative permeability. Required.

PCW  Water/oil capillary pressure.

Gas Saturation tab

The Gas Saturation table defines the following fields:

SG  Gas saturation.

KRG  Gas relative permeability.

PCG  Oil/gas capillary pressure.

Oil Saturation (2-Phase) tab

The Oil Saturation (2 – Phase) table defines the following fields:

SO  Oil Saturation.

KROG  Gas/oil relative permeability. Required. Set to 0 for a gas/water system.

Oil Saturation (3-Phase) tab

The Oil Saturation (3 – Phase) table defines the following fields:

SO  Oil Saturation.

KROW  Water/Oil relative permeability. Required. Set to zero in a gas/water system.

KROG  Gas/oil relative permeability. Required. Set to 0 for a gas/water system.

SPECROCK tab (optional)

This tab is active only if you have selected the thermal option (TEMP) for E100 simulator. SPECROCK specifies the volume specific heat of rock as a function of temperature. You can define the values for each rock-fluid region.

Select the rock-fluid Region ID in the table on the left side and enter the values in the table on the right side.

Temperature Enter the temperature values in ascending order.

Volume Specific Heat of Rock Enter the volume specific heat of rock values at the respective temperature values.

ENPTVT tab (optional)

This tab is active only if you have selected the THERMAL option using the E300 simulator, or if you have selected TEMP or TEMPR option with E100 simulator. The ENPTVT keyword specifies the temperature variation of the saturation end-points for the saturation table endpoint for the endpoint scaling.

Select the rock-fluid region in the table on the left side, and enter the saturation endpoint values in the table on the right side for the selected rock-fluid region.

Temperature Enter the temperature values in ascending order.

SWL Connate water saturation

SWCR Critical water saturation

SWU Maximum water saturation

SGL Connate gas saturation

SGCR Critical gas saturation

SGU Maximum gas saturation

SOW CR Critical oil-in-water saturation

SOG CR Critical gas-in-water saturation