Polished rod horsepower - Sucker-rod pump
Input(s)
C: Calibration Constant of Dynamometer (lb/in.)
A: Upper Area of Card (in. \({ }^{2}\) )
L: Length of Card (in.)
S: Maximum Theoretical Polished Rod Position (in.)
N: Strokes Per Minute (spm)
Output(s)
PRHP: Polished Rod Horsepower (hp)
Formula(s)
\[
\mathrm{PRHP}=\mathrm{C} * \mathrm{~S} * \mathrm{~N} * \frac{\mathrm{A}}{33000 * 12 * \mathrm{~L}}
\]
Reference(s)
Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering:A Computer-Assisted Approach, Page: 18.