GASVISCT
Recognised by the OPM Flow parserPROPS
GASVISCT defines the gas viscosity as a function of temperature for when OPM Flow’s thermal option has been activated by the THERMAL keyword in the RUNSPEC. The reference pressure for this table is given by the VISCREF keyword in the PROPS section. Note this is an OPM Flow keyword used with OPM Flow’s black-oil thermal model that is not available in the commercial simulator’s black-oil thermal formulation. However, the keyword and similar functionality is available in the commercial compositional simulator.
This keyword can only be used if OPM Flow’s thermal option has been activated by the THERMAL keyword in the RUNSPEC section. Note this is different to the commercial simulator that uses the TEMP keyword in the RUNSPEC section to activate the black-oil thermal model.
Notes:
The keyword is followed by NTPVT tables as declared on the TABDIMS keyword in the RUNSPEC section.
Each table must contain a minimum of two rows and a maximum of NPPVT rows as declared on the TABDIMS keyword in the RUNSPEC section.
Each table is terminated by a “/” and there is no “/” terminator for the keyword.
- Records
- Fixed number of records
- Variadic
- The record accepts a variable number of items
Parameters
| No. | Name | Description | Type | Dimension | Field | Metric | Lab | Default |
|---|---|---|---|---|---|---|---|---|
| 1 | DATAmanual: TEMP | A columnar vector of real monotonically increasing down the column values that defines the temperature values. | DOUBLE | Temperature, Viscosity | °F | °C | °C | None |
| 2 | VIS | A columnar vector of real increasing down the column values that defines the gas viscosity for the corresponding temperature values (TEMP). VIS should be given at the reference pressure defined by the PRESS variable on the VISCREF keyword. | cP | cP | cP | None |
Example
The following example shows the GASVISCT keyword for when the thermal option has been activated by the THERMAL keyword in the RUNSPEC section and for when NTPVT on the TABDIMS keyword in the RUNSPEC section is set equal to one.
--
-- GAS VISCOSITY VERSUS TEMPERATURE TABLES (OPM FLOW EXTENSION KEYWORD)
--
-- GAS GAS
-- TEMP VISC
-- -------- -------
GASVISCT
100.0 0.0500
110.0 0.0550
120.0 0.0580
150.0 0.0620
165.0 0.0625 / TABLE NO. 01
There is no terminating “/” for this keyword.Manual source: parts/chapters/subsections/8.3/GASVISCT.fodt