Page 152 - Petroleum and Gas Field Processing

3. The following data are given for a small oil field:
Oil rate: 8000 BPD
Water rate: 3000 BPD
Gas–oil ratio: 2000 SCF/bbl
Operating pressure: 500 psia

Operating temperature: 80 F

Oil gravity: 35 API
Water specific gravity: 1.07
Gas specific gravity: 0.6
Oil viscosity: 10 cP
Oil retention time: 600 s
Water retention time: 360 s
(a) Design a horizontal separator to handle the field production.
(b) Design a vertical separator to handle the field production.

4. Determine the actual gas, oil, and water capacities of a horizontal
three-phase separator having a 60-in. diameter and 15-ft seam-to-seam
length for the above operating conditions.
5. Determine the actual gas, oil, and water capacities for a three-phase
horizontal separator having a 48-in. diameter and a 16-ft seam-to-

seam length, operating at 585 psi and 80 F, given the following data:
Gas specific gravity: 0.6
Water specific gravity: 1.07
Oil specific gravity: 0.875
Water viscosity: 1.12 cP
Oil viscosity: 5.0 cP
Water–oil ratio: 1 : 1.5
Oil retention time: 600 s
Water retention time: 480 s
K: 0.26
Z: 0.89
6. Determine the actual gas, oil, and water capacities of a vertical
three-phase separator for the same conditions given in Problem 5.
Compare the results for the two separators.

Copyright 2003 by Marcel Dekker, Inc. All Rights Reserved.