Page 176 - Formulas and Calculations for Petroleum Engineering

Drilling engineering formulas and calculations Chapter 2 169

D r : Rod Diameter (in.)
L S : Stroke Length (in.)
N C : Number of Cylinders (unitless)
n v : Volumetric Efficiency (unitless)

Output(s)

V t : Volume of Fluid Displaced (bbl/stroke)

Formula(s)

2 2
N L 2 D L D n v
C
r
S
V ¼
t
42 294
Reference: Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015.
Houston, Texas, Page: 49.
2.228 Volume of fluid displaced for single-acting pump
Input(s)

D L : Piston Diameter (in.)
L S : Stroke Length (in.)
N C : Number of Cylinders (unitless)

Output(s)

V t : Volume of Fluid Displaced (bbl)

Formula(s)

2
p D L N C
L
S
V ¼
t
4
Reference: Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015.
Houston, Texas, Page: 47.

2.229 Volume of fluid displaced for triplex pump
Input(s)

D L : Piston Diameter (in.)
L s : Stroke Length (in.)
n v : Volumetric Efficiency (unitless)

Output(s)

V t : Volume of Fluid Displaced (bbl/stroke)