Page 135 - Standard Handbook Petroleum Natural Gas Engineering VOLUME2

Formation Evaluation 109

- Critical Flow
--- Non-Critical Flow

Time - lime -

PRESSURES:A = INmAL MUD EVENTS: a = 1stTHRIBBLE IN b = LASTTHRIBBLE IN
B = PACKER SQUEEE c = ON BmOM d =PACKER SET
C = AVE. FLOWING e =TOOL OPENED f =TOOL CLOSED
D =SHUT IN g = BUILD UP COMPLETE h = EQUALIZING VALVE OPENED
E = NN4L MUD i = PACER UNSEATED j = 1st THRIBBLE OUT
0-C = DRAWOWN k = MTHRIBBLE OUr
1 =TIME RUNNING IN 2 = FLOW PERIOD
3 =SHUT IN PERIOD 4 =TIME PULLING OUT
(rOP GAUGE NOT BIANED OFF; BOllOM GAUGE BLANKED OFF)
LEGEND: -Top Chart (or Bottom Charts)
--- Bttom Chart
(Critical Flow)

Flgure 5-62.