# PVCOS¶

This table is used with COMP4; where it describes the degree of solution of the solvent component in the oil, and the properties of the oil with dissolved solvent. This table goes in the EOS OIL block and follows the pattern of the PVCO table. If not defined default to the PVCO table. An example is given below:

PVCOS
DATA_UNITS
PRESSURE                Bar
RS                      m^3/m^3
FVF                     m^3/m^3
VISCOSITY               cP
COMPRESSIBILITY         1/Bar
VISCOSIBILITY           1/Bar
END
DATA
TEMPERATURE 15.0
1.0135     0    1.034  0.310  2.92780E-04  0.00211302
34.473   20.945  1.1017 0.295  2.92780E-04  0.00211302
68.947   39.646  1.1478 0.274  2.92780E-04  0.00211302
82.737   47.679  1.1677 0.264  2.92780E-04  0.00211302
103.421   60.805  1.1997 0.249  2.92780E-04  0.00211302
124.106   75.072  1.235  0.234  2.92780E-04  0.00211302
137.895   85.313  1.26   0.224  2.92780E-04  0.00211302
158.717  102.020  1.301  0.208  2.92780E-04  0.00211302
172.369  112.938  1.327  0.200  2.92780E-04  0.00211302
206.843  140.580  1.395  0.187  2.92780E-04  0.00211302
241.317  168.204  1.463  0.175  2.92780E-04  0.00211302
275.790  195.829  1.5312 0.167  2.92780E-04  0.00211302
310.264  223.471  1.5991 0.159  2.92780E-04  0.00211302
330.948  240.053  1.6398 0.155  2.92780E-04  0.00211302
END !end TEMP block
END !endDATA
END !end PVCOS


The PVCOS block may contain several pressure tables, one for each temperature. In the pressure table, column 1 is the pressure, column 2 is the solution solvent-oil ratio ($$Rss$$), column 3 is the formation volume factor ($$Bo$$), column 4 is the viscosity ($$μo$$), column 5 is the compressibility, $$Co=−(dBo/dP)/Bo$$, column 6 the viscosibility, $$Cv=(dμo/dP)/μo$$.

The pressure in column 1 must increase monotonically, and the pressure tables must be ordered for increasing temperatures. The number of pressure points given for each temperature must be the same, however the values and range of the pressure can vary. Temperatures and pressures outside the given range are extrapolated. When pressure data are available for only one temperature, the properties are considered isothermal.

The default units used by this table are:

• Bar for the pressure,

• m3/m3 for $$Rss$$ and $$Bo$$

• cP (centipoise) for the viscosity

• 1/Bar for the compressibility and viscosibility

• C for temperature.

DATA_UNITS specifies units different than the default values, and include only the properties (in any order) for which units are needed. The temperatures can currently be entered only in degrees Celsius.