Since 1967

Unico, Inc.
3725 Nicholson Rd.
P. O. Box 0505
Franksville, WI
53126-0505
262.886.5678
262.504.7396 fax
oilgas@unicous.com
unicous.com



Copyright © 2007
Unico, Inc.
All rights reserved.

All trade designations
are provided without
reference to the rights
of their respective
owners.

Oil and Gas Correlations Calculator
for Predicting Fluid Properties

Inputs
Well Name
Oil API Gravity (°)
Oil Specific Gravity
0.8762
Gas/Oil Ratio (scf/bbl)
Gas Specific Gravity
0.8585
Bubble Point Pressure (psi)
Gas Density (lb/ft3)
0.0656
Investigated Pressure (psi)
Oil Density (lb/ft3)
54.697
Investigated Temperature (°F)
Water Density (lb/ft3)
62.428
Calculate

Results
Method Gas/Oil
Ratio
(scf/bbl)		 Bubble Point Pressure
(psi)		 Oil Formation Volume Factor

Oil
Density
(lb/ft3)
Standing 42.6 508 1.0681 52.302
Lasater 2.7 630 — —
Vasquez-Beggs 49.3 477 1.0797 51.742
Method Dead
Oil Viscosity
(cp)		 Saturated
Oil Viscosity
(cp)		 Unsaturated
Oil Viscosity
(cp)
Beal 7.3 4.8 4.7
Chew-Connally 7.3 4.8 —
Beggs-Robinson 9.4 4.6 4.6

 To view the inputs that affect a given calculation, place the cursor over the desired result.