Table B3 |
Well: |
Tedford 4-10 (15-025-20720) |
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from, ft |
to, ft |
thickness, ft |
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entered data |
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DST range: |
5294 |
5330 |
36 |
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read from correlations |
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Pay SD#1 |
5298 |
5299 |
1 |
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read from Horner plot |
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Pay SD#2 |
5305 |
5312 |
7 |
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calculation |
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Pay SD#3 |
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Morrow pay |
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8 |
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Reservoir gas properties: |
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Sp gr. = |
0.73 |
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gas specific gravity (avg from 3
samples) |
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Tpc = |
386 |
R |
pseudocritical temp |
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Ppc = |
660 |
psia |
pseudocritical pressure |
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DST analysis - Gas using SPE
Monograph method: |
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DST analysis - Gas using High
pressure gas method: |
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DST analysis - Gas using Low
pressure gas method: |
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Pi = |
1518 |
psi |
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Pi = |
1518 |
psi |
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m = |
33 |
psi/cycle |
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m = |
33 |
psi/cycle |
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Mg = |
85000 |
psi^2/cycle |
Qg = |
22.9 |
Mcfd |
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Qg = |
22.9 |
Mcfd |
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Qg = |
22.9 |
Mcfd |
Pwf = |
711 |
psi |
(related to Qg - end of second flow) |
Pwf = |
711 |
psi |
(related to Qg - end of second flow) |
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P I hr = |
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P I hr = |
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Transmissibility: |
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Transmissibility: |
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Transmissibility: |
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Kh/mu = |
162.6*Qg*Bg/m |
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Kh/mu = 818.5*Qg*Tr*Z/(P1avg*m) |
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Kh/mu = 1637*Qg*Tr*Z/Mg |
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Kh/mu = |
212.646 |
md-ft/cp |
Bg = Psc*Tr*1000*Z/(p*Tsc*5.614) |
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gas formation volume factor |
HT - Horner time |
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P (@ HT = 1) = |
1518 |
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K = |
0.4 |
md |
Psc = |
14.65 |
psi |
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pr at standard conditions |
P (@ HT = 10) = |
1485 |
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Tr = |
574 |
R |
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Res temp = |
114 |
P1avg = |
1501.5 |
psi |
avg pr of Horner straight line |
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Tsc = |
520 |
R |
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Std temp |
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p = (Pi+Pwf)/2 |
1114.5 |
psi |
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avg of static and flowing pressure |
Kh/mu = |
182.392 |
md-ft/cp |
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Tpr = |
1.49 |
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pseudo reduced temp |
K = |
0.3 |
md |
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Ppr = |
1.71 |
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pseudo reduced pressure |
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Z = |
0.84 |
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compressibility factor at p and
Tr |
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Bg = |
2.17 |
RB\Mcf |
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Kh/mu = |
244.971 |
md-ft\cp |
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Permeability: |
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h = |
8 |
ft |
pay |
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Mol wt of air = |
29 |
lb/lb mole |
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Mol wt of gas = |
21.17 |
lb/lb mole |
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mu @ 1 atm = |
0.0111 |
cp |
(@ temp |
114 |
F) |
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Vis ratio = |
1.25 |
cp |
at corresponding Tpr and Ppr |
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gas vis (mu) = |
0.0139 |
cp |
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K = |
0.4 |
md |
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