Page 215 - Formulas and Calculations for Petroleum Engineering

208 Formulas and calculations for petroleum engineering

Formula(s)

f L ρ v 2
ΔP ¼
f
ð
25:80 d d Þ
0
i
Reference: Saydam, T., (1967). Principles of Hydraulic Fracturing, ARI Publishing Co., Page: 31.
4.8 Approximate ideal counterbalanced load
Input(s)

PPRL: Peak Polished Rod Load (lb)
MPRL: Minimum Polished Rod Load (lb)

Output(s)
AICB: Ideal Counterbalance (lb)

Formula(s)

PPRL + MPRL
AICB ¼
2

Reference: Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted
Approach, Page: 12/169.

4.9 Average downstroke load (sucker-rod pump)

Input(s)
C: Calibration Constant of Dynamometer Card (lb/in.)
2
A: Lower Area of Card (in. )
L: Length of Card (in.)

Output(s)
ADL: Average Downstroke Load (lb)

Formula(s)

A
ADL ¼ C
L

Reference: Boyun, G., William, C., & Ali Ghalambor, G. (2007). Petroleum Production Engineering: A Computer-Assisted
Approach, Page: 18/269.

4.10 Average fracture width (acidizing)

Input(s)
π: Pi Number (dimensionless)
w w : Fracture width at the Wellbore (m)