Page 221 - Intelligent Digital Oil And Gas Fields

174
error
different
II
FM relative error compared to WT
showing
WT
to
compared
-0.25
error
relative
III
FM
and
MSCF/d.
VFM
(B)
40,000
in
(B)
read
R 2 = 0.802 0.25 radius of 15% error I radius of 10% error 0.2 radius of 5% error IV 0.15 0.1 0.05 0 0 -0.05 -0.1 -0.15 -0.2 -0.25 0.25 0.2 0.15 0.1 0.05 -0.05 -0.1 -0.15 VFM relative error compared to WT -0.2 Intelligent Digital Oil and Gas Fields
and
is
35,000 rates gas FM and
30,000 FM and VFM WT, VFM,
Initial rate after choke changes 25,000 Gas rate from flow meter, MSCF/d between from rate Gas
20,000 comparison 15%. and
15,000 Linear 10%,
40,000 35,000 30,000 25,000 20,000 15,000 (A) 5%,
5.12 of
(A) Fig. radius
Gas rate from VFM, SCF/d