Page 172 - Formulas and Calculations for Petroleum Engineering

Drilling engineering formulas and calculations Chapter 2 165

Output(s)

P ST : Surface Test Pressure (psi)

Formula(s)

ð
P ¼ FG DÞ 0:052 r DÞ
ð
ST
Reference: Suman Jr, G. O., & Ellis, R. C. (1977). Cementing Handbook. World Oil, Page: 69.

2.217 Total amount of solids generated during drilling

Input(s)
C h : Capacity of Hole (bbl/ft)
L: Footage Drilled (ft)
SG: Specific Gravity of Cuttings (unitless)
Ø: Porosity (fraction)

Output(s)

W s : Amount of Solids Generated (pounds)

Formula(s)

W ¼ 350 C L 1 Øð Þ SG
s h
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 19.

2.218 Total heat energy consumed by the engine

Input(s)
w f : Mass Rate of Fuel Consumption (lbm/min)
H: Heating value of Fuel (ft lbf/Btu)

Output(s)
Q i : Total Heat Energy consumed by the Engine (hp)

Formula(s)

w H
f
Q ¼
i
33;000
Reference: Bourgoyne, A. T., Millheim, K. K., Chenevert, M. E., & Young, F. S. (1986). Applied Drilling Engineering,
Page: 6.