Page 158 - Formulas and Calculations for Petroleum Engineering

Drilling engineering formulas and calculations Chapter 2 151

2.183 Pump head rating

Input(s)
n p : Number of Pitches of Stator (unitless)
Dp: Head Rating Developed into an Elementary Cavity (psi)

Output(s)

DP: Pump Head Rating (psi)

Formula(s)

DP ¼ 2 n 1 Dp
p

Reference: Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted
Approach, Page: 14.

2.184 Pump output—gpm
Input(s)

d: Liner Diameter (in.)
S: Stroke Length (in.)
spm: Strokes per minute (dimensionless)

Output(s)
PO: Pump Output gpm (bbl/stroke)

Formula(s)

2
PO ¼ 3 d 0:7854 S 0:00411 spm

Reference: Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 8.

2.185 Pump output triplex pump
Input(s)

ld: Liner Diameter (in.)
sl: Stroke Length (in.)

Output(s)
PO: Pump Output (bbl/stroke)

Formula(s)

2
PO ¼ 0:000243 ld sl

Reference: Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 7.