Problem 4

Given the following laboratory data:

Cell pressure (psia)

2000

1500 = Pbp

1000

500

14.7

Oil volume in cell

(cm³)

650

669

650

615

500

Gas volume in cell

(cm³)

0

0

150

700

44,500

Cell temperature

(°F)

195

195

195

195

60

0

t

Evaluate Rw, B and B₁ at the stated pressures. The gas deviation factors at 1000

psia and 500 psia have been evaluated as 0.91 and 0.95, respectively.