Page 102 - Formulas and Calculations for Petroleum Engineering
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Drilling engineering formulas and calculations Chapter 2 95
Formula(s)
D 2 h
V ¼ 1 Øð Þ
c
1029:4
Reference: Lyons, W. C., Carter, T., and Lapeyrouse, N. J., 2012, Formulas and Calculations for Drilling, Production and
Workover, Third Edition, Gulf Professional Publishing, Page: 18.
2.47 Cuttings produced per foot of hole drilled—lbs
Input(s)
C a : Capacity of Hole (bbl/ft)
L d : Footage Drilled (ft)
SG: Specific Gravity of Cuttings (fraction)
Ø: Porosity (fraction)
Output(s)
W cg : Amount of Cuttings Produced per each Foot of Hole Drilled (lb)
Formula(s)
W ¼ 350 C Þ L Þ 1 ØÞ SG
ð
ð
ð
cg a d
Reference: Lyons, W. C., Carter, T., and Lapeyrouse, N. J., 2012, Formulas and Calculations for Drilling, Production and
Workover, Third Edition, Gulf Professional Publishing, Page: 19.
2.48 D—Exponent
Input(s)
d: Penetration Rate (ft/h)
N: Rotary Speed (rpm)
W: Weight on Bit in 1000lb (lb)
D: Bit Size (in.)
Output(s)
d: D Exponent (dimensionless)
Formula(s)
R
log
60 N
d ¼
12 W
log
1000 D
Reference: Lyons, W. C., Carter, T., and Lapeyrouse, N. J., 2012, Formulas and Calculations for Drilling, Production and
Workover Third Edition Gulf Professional Publishing, Page: 214.
