Page 177 - Formulas and Calculations for Petroleum Engineering

170 Formulas and calculations for petroleum engineering

Formula(s)

2
L D n v
L
s
V ¼
t
42 98:03
Reference: Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015.
Houston, Texas, Page: 49.

2.230 Volume of liquid (oil plus water) required to prepare a desired volume of mud
Input(s)

W 1 : Initial Density of oil water mix (ppg)
W 2 : Desired Density of oil water mix (ppg)
DV: Desired Volume (bbl)

Output(s)
SV: Starting Volume Of Liquid (Oil Plus Water) Required To Prepare A Desired Volume Of Mud (ppg)

Formula(s)

35 W 2
SV ¼ DV
35 W 1

Reference: Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 88.

2.231 Volume of slurry per sack of cement

Input(s)
S c : Specific Gravity of Cement (unitless)
W a : Weight of Additive per Sack of Cement (lb/stroke)
S a : Specific Gravity of Additive (unitless)
Q w : Total Water Requirement per Sack of Cement (gal/stroke)

Output(s)

V s : Volume of Slurry (gal/stroke)

Formula(s)

94 W a
V ¼ + +Q
s w
S 8:33 S 8:33
c a
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 48.