Page 349 - Fundamentals of Reservoir Engineering
P. 349
REAL GAS FLOW: GAS WELL TESTING 284
m(p )
ws
2
(psia /cp) 10 6
×
m(p*) =
1065 1066.7
m(p ) 1 - hr a
’
ws
1060
m(p ) 1 - hr
ws
1055
6 5 4 3 2 1 0
t + t ∆
log
t ∆
m(p )
wf
2
(psia /cp) 10 6
×
830
b
820
810
-.1 0 .1 .2 .3 .4 .5
log t
m(p )
wf
2
(psia /cp) 10 6
×
650
c
640
630
-.1 0 .1 .2 .3 .4 .5
log t
Fig. 8.15 Complete analysis of a pressure buildup test in a gas well: (a) buildup
analysis (table 8.12); (b) and (c) transient flow analyses of the first and
second flow periods, respectively (table 8.10)
1057 819.4 53.5 × 10 6
−
S′ = S DQ = 1.151 − log + 3.23 = 10.22
+
1
1
16.17 .15 × 3.6 × .09
