Problem 1

Using the letter symbols for reservoir engineering, write expressions for the following

terms for a volumetric, undersaturated reservoir:

a) The initial reservoir oil in place in stock tank barrels

b) The fractional recovery after producing No STB

c) The volume occupied by the remaining oil (liquid) after producing No STB

d) The SCF of gas produced

e) The SCF of initial gas

f) The SCF of gas in solution in the remaining oil

g) By difference, the SCF of escaped or free gas in the reservoir after producing N₂ STB

h) The volume occupied by the escaped, or free gas

6.1