Glaso Undersaturated Oil Formation Volume Factor Calculator
Enter the declared phase behavior and thermodynamics inputs below to solve B_o. Variable definitions, units, the default calculation, and the available source trail are included on this page.
What is available in this record
This record provides the functioning calculator, formula, declared variables and units, a reproducible default result, and the available citation metadata. A separately written engineering interpretation has not yet been published for this calculation.
Formula, variables, and default calculation
Reproducible default result
With the default values shown below, the calculation returns B_o = 1.315723 RB/STB. Defaults demonstrate the implementation; they are not recommended field values.
1.3210909284519903
0.000013867833333333335
2706.4119585411386
3000
Input definitions
B_ob
RB/STBOil Formation Volume Factor at Bubble Point
c_o
1/psiOil Compressibility Above Bubble Point
p_b
psiBubble Point Pressure
p
psiPressure
Output definitions
B_o
Undersaturated Oil Formation Volume Factor
B_ob
Oil Formation Volume Factor at Bubble Point
c_o
Oil Compressibility Above Bubble Point
p_b
Bubble Point Pressure
p
Pressure
Source and record status
Source metadata identifies the relationship implemented by the calculator. Check the cited edition, unit basis, and scope against the engineering case before operational use.
Oil Correlations - Glaso (North Sea Oil), Glaso, O., IHS Harmony, Petroleum Office
Glaso, O. 1980. Generalized Pressure-Volume-Temperature Correlations, Journal of Petroleum Technology, SPE-8016-PA; IHS Harmony and Petroleum Office oil FVF documentation.
Open source reference