Page 127 - Formulas and Calculations for Petroleum Engineering

120 Formulas and calculations for petroleum engineering

Output(s)

P: Reduction in Bottomhole Pressure (psi)

Formula(s)

MG
P ¼ V
C

Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 129.

2.104 Impact force—Nozzle hydraulic analysis

Input(s)

MW: Mud Weight (ppg)
v n : Jet Velocity (ft/s)
Q: Flowrate (gpm)

Output(s)
IF: Impact Force (lb)

Formula(s)

Q
IF ¼ MWÞ vðÞ
ð
n
1930
Reference: Lapeyrouse, N. J., 2002, Formulas and Calculations for Drilling, Production and Workover, Second Edition,
Gulf Professional Publishing, Page: 170.

2.105 Impringing jet

Input(s)
C1: Mass Rate Of Flow for stream (kg/s)
v1: Velocity of Stream (m/s)
y: Angle of inclination of plate (rad)

Output(s)
C2a: Mass Rate Of Flow for stream 2a (kg/s)
C2b: Mass Rate Of Flow for stream 2b (kg/s)
v2a: Velocity of Stream 2a (m/s)
v2b: Velocity of Stream 2b (m/s)