Page 132 - Formulas and Calculations for Petroleum Engineering

Drilling engineering formulas and calculations Chapter 2 125

Formula(s)

Q H
f
P ¼
i
2545
Reference: Samuel. E Robello. 501 Solved Problems and Calculations for Drilling Operations. Sigma Quadrant. 2015.
Houston, Texas, Page: 6.

2.117 Jet velocity—Nozzle hydraulic analysis

Input(s)
Q: Flow Rate (GPM)
F: Jet Size (1) (in.)
C: Jet Size (2) (in.)
B: Jet Size (3) (in.)

Output(s)
v c : Jet Velocity (ft/s)

Formula(s)

417:2 Q
v ¼
c 2 2 2
F +C +B
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 170.

2.118 Kick analysis—Influx

Input(s)
SICP: Shut in Casing Pressure (psi)
SIDPP: Shut in Drill Pipe Pressure (psi)
h i : Height of Influx (ft)
mw: Mud weight (ppg)

Output(s)

I: Influx (ppg)

Formula(s)

SICP SIDPP
I ¼ mw
h 0:052
i

Reference: Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 127.