Unformatted text preview: aracteristic of kick loading is the existence of
two or more fluids in the well bore: the mud being
drilled with at the time of the kick, and the influx
fluids. The position of these fluids in the borehole
169 Fig.19 Burst Design-Fixed End Pint Copyright(c) 2005 by Ali Ghalambor & Boyun Guo 170 85 The determination of the lengths of the lengths of
the columns of mud and gas may be accomplished
by solving the following simultaneous equations:
2) Ps+XGm+YGg=Injection Pres.=0.052(FG+SF)SD (Eq.4)
Where: X=Length of mud column(ft)
Y=Length of gas column(ft)
SD=Setting depth of the casing(ft)
Ps =Surface Pressure (Psi)
Gm=Gradient of heaviest mud weight to be used (psi/ft)
Gg =Gradient of gas
FG =Calculated Value (ppg)
SF =Safety Factor
0.052 =Conversion factor (psi/gal/lb/ft) With the simultaneous solution of the
equations, the lengths of the respective
columns of fluids become known, and the
resulting load line is as illustrated in Fig.20.
By plotting this burst resisting, backup...
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This document was uploaded on 03/28/2014.
- Fall '14