pyscal

Python tool module for relative permeability/SCAL support in reservoir simulation

Documentation

• http://equinor.github.io/pyscal

Feature overview

• Command line tool for generating Eclipse input from parameters in an XLSX- or CSV-file.

• API to create relative permeability curves through correlations or tables.

• Consistency checks for three-phase setups, ensures compatibility of oil-water tables and gas-oil tables.

• Support for handling uncertainty, doing book-keeping for low, base and high cases, and the possiblity to interpolate between these cases using a number from -1 to +1.

Command line tool

Example use with CSV input for one SATNUM:

$ cat relperminput.csv
SATNUM, swl, sorw, Nw, Now
1,      0.1, 0.05, 2, 3
$ pyscal relperminput.csv --delta_s 0.1 -o relperm.inc
Written to relperm.inc

where relperm.inc can be used directly as an INCLUDE file in Eclipse or Flow. The same table as in the CSV above could have been in an XLSX file also.

Python API usage

Using the Python API, the same curves as above can be constructed with

from pyscal import WaterOil

wo = WaterOil(h=0.1, sorw=0.05, swl=0.1)
wo.add_corey_water(nw=2)
wo.add_corey_oil(now=3)
print(wo.SWOF())

which will produce the output

SWOF
--
-- pyscal: 0.4.1
-- swirr=0 swl=0.1 swcr=0.1 sorw=0.05
-- Corey krw, nw=2, krwend=1, krwmax=1
-- Corey krow, now=3, kroend=1
-- krw = krow @ sw=0.46670
-- Zero capillary pressure
-- SW     KRW       KROW      PC
0.1000000 0.0000000 1.0000000 0
0.2000000 0.0138408 0.6869530 0
0.3000000 0.0553633 0.4471809 0
0.4000000 0.1245675 0.2709139 0
0.5000000 0.2214533 0.1483818 0
0.6000000 0.3460208 0.0698148 0
0.7000000 0.4982699 0.0254427 0
0.8000000 0.6782007 0.0054956 0
0.9000000 0.8858131 0.0002035 0
0.9500000 1.0000000 0.0000000 0
1.0000000 1.0000000 0.0000000 0
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