The document outlines key properties of crude oil, including density, specific gravity, and gas solubility, as well as the formulas for calculating gas formation volume factors. It includes details on numerical approaches and conversion factors for oil measurements. Contact information for the author, Syed Nawaz, is provided for further queries.

1. Properties of Crude Oil

2. Properties
• Density
• Specific Gravity
• API
• Gas Solubility
• Oil formation factor and Total Oil Formation
factor
• Formula derivation, its constant
• Numerical Approach

3. Formula
• Gas
PV=ZnRT

4. • (number of moles does not change for both reservoir and surface and for Z at surface the
compressibility is negligible)
• The condition at surface for temperature is 60 F and the pressure is like 14.7 psi

5. Cubic feet to barrels
• To convert 1 barrel to we have to use 5.615
as a conversion factor since 1 barrel = 5.615

6. Numerical approach
• A gas well is producing at a rate of 15000 cubic feet/
day from a gas reservoir at an average pressure of 2000
psia and a temperature of 120ᵒF. Calculate gas
formation volume factor when z-factor is 0.78?
• Formula used:
• Expansion is 1/0.00639 = 156.49 scf/

7. Reference
• Syed Nawaz (Ex-NDT Inspector and Ex-Student
of PetroGate Academy, Dehradun, student of
Andhra University, India)
• L.P.Dake
• Tarek Ahmed
• A.I.Leverson
• Petrowiki google
• Youtube

8. ?
Any Queries
Mail address: nawaz.delta.au@gmail.com