Page 122 - Formulas and Calculations for Petroleum Engineering

Drilling engineering formulas and calculations Chapter 2 115

Output(s)

r m : Gas/Mud Ratio (SCF/bbl)

Formula(s)

2
d RØS p
b g
r ¼
m
310 zTq
m
Reference: Watson, D., Brittenham, T., & Moore, P. L. (2003). Advanced Well Control (Vol. 10). Society of Petroleum
Engineers, Page: 19.

2.93 Gel strength—Optimal solid removal efficiency

Input(s)
V s : Expected Drilled Solids in Drilling Fluid (fraction)
V c : Drilled Solids in Discard (fraction)

Output(s)
Z sr : Optimal Solid Removal Efficiency (fraction)

Formula(s)

0 1
1 V
B s C
Z ¼ 1 B C
rs
@ V c A
1 V +
s
V s
Reference: Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015.
Houston, Texas, Page: 192.
2.94 Gel strength—Solid control efficiency

Input(s)
V r : Fraction of the Solids Removed (unitless)
V h : Hole Volume (BBL)
V d : Volume of Solids Discarded (BBL)

Output(s)
(Z s )ce: Solid Control Efficiency (fraction)

Formula(s)

V d
ðÞce ¼ V Þ
ð
s r
Z
V
h
Reference: Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015.
Houston, Texas, Page: 191.