Page 222 - Intelligent Digital Oil And Gas Fields

174 Intelligent Digital Oil and Gas Fields

0.25 error

I
II
0.2 different
0.15

0.1 showing
0.05 WT

0 0 FM relative error compared to WT to
0.25 0.2 0.15 0.1 0.05 -0.05 -0.05 -0.1 -0.15 -0.2 -0.25 compared

radius of 15% error radius of 10% error radius of 5% error -0.1 -0.15 error

-0.2 relative
IV III FM
-0.25 and
(B) VFM MSCF/d.
VFM relative error compared to WT
40,000 (B) in
R 2 = 0.802 and read 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