Enter the volume of oil under standard conditions (bbl) and the volume under reservoir pressure and temperature (bbl) into the Calculator. The calculator will evaluate the Oil Shrinkage Factor. 

Oil Shrinkage Factor Formula

OSF = Vsc / Vrp

Variables:

  • OSF is the Oil Shrinkage Factor (bbl/bbl)
  • Vsc is the volume of oil under standard conditions (bbl)
  • Vrp is the volume of oil under reservoir pressure and temperature (bbl)

To calculate Oil Shrinkage Factor, divide the volume of oil under standard conditions by the volume under reservoir pressure and temperature.

How to Calculate Oil Shrinkage Factor?

The following steps outline how to calculate the Oil Shrinkage Factor.


  1. First, determine the volume of oil under standard conditions (bbl). 
  2. Next, determine the volume of oil under reservoir pressure and temperature (bbl). 
  3. Next, gather the formula from above = OSF = Vsc / Vrp.
  4. Finally, calculate the Oil Shrinkage Factor.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

volume of oil under standard conditions (bbl) = 30

volume of oil under reservoir pressure and temperature (bbl) = 50