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Phase Behavior and ThermodynamicsPVT PropertiesCalculation record

Beggs-Standing Oil Formation Volume Factor Above Bubble Point Calculator

Bo=Bbexp⁡[co(pb−p)]B_o=B_b\exp\left[c_o(p_b-p)\right]

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.

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Inputs

Defaults provide a quick field-unit example for the equation.

4 variables

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Extended guidance in preparation

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 reference

Formula, variables, and default calculation

Bo=Bbexp⁡[co(pb−p)]B_o=B_b\exp\left[c_o(p_b-p)\right]

Reproducible default result

With the default values shown below, the calculation returns B_o = 1.343267 RB/STB. Defaults demonstrate the implementation; they are not recommended field values.

B_bRB/STB

1.35

c_o1/psi

0.00001

p_bpsi

2500

ppsi

3000

Input definitions

B_b

RB/STB

Oil Formation Volume Factor at Bubble Point

c_o

1/psi

Oil Compressibility

p_b

psi

Bubble Point Pressure

p

psi

Pressure

Output definitions

B_o

RB/STB

Oil Formation Volume Factor

B_b

RB/STB

Oil Formation Volume Factor at Bubble Point

c_o

1/psi

Oil Compressibility

p_b

psi

Bubble Point Pressure

p

psi

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.

reviewed

Craft, B.C., Hawkins, M. and Terry, R.E. 1991. Applied Petroleum Reservoir Engineering, 2nd Edition, Page 37.

Open source reference