Page 133 - Formulas and Calculations for Petroleum Engineering

126 Formulas and calculations for petroleum engineering

2.119 Kick analysis—Formation pressure with well shut-in on a kick

Input(s)
SIDPP: Maximum allowable shut in casing pressure (psi)
mw: Mud weight (ppg)
h: Height (ft)

Output(s)
P fp : Kick Analysis (Formation Pressure with well shut in on a kick) (psi)

Formula(s)

P ¼ SIDPP + mw 0:052 hÞ
ð
fp
Reference: Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 125.

2.120 Kick analysis—Maximum pit gain from a gas kick in water-based mud

Input(s)
P: Formation Pressure (psi)
V: Pit Gain (bbl)
KWM: Kill weight mud (ppg)
C: Annular Capacity (bbl/ft)

Output(s)

MPG: Maximum pit gain resulting from a gas kick in a water-based mud (bbl)

Formula(s)

0:5
C
MPG ¼ 4 P * V *
KWM
Reference: Formulas and Calculations for Drilling, Production and Workover, Second Edition, Lapeyrouse, Page: 127.

2.121 Kick analysis—Maximum surface pressure from a gas kick in water-based mud

Input(s)

P: Formation Pressure (psi)
V: Pit Gain (bbl)
KWM: Kill weight mud (ppg)
C: Annular Capacity (bbl/ft)

Output(s)

MSP: Max surface pressure resulting from a gas kick in a water-based mud (psi)