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BottomHoleNodalOil.xls
Input Data:1
Reservoir pressure: 3000 psia 20.4
Tubing ID: 1.66 in 0.0422Wellhead pressure: 500 psia 3.4Productivity index above bubble po 1 stb/d-psi 23
Producing gas-liquid ratio (GLR): 1000 scf/stb 180
Water cut (WC): 25 % 25
Oil gravity: 30 0.9
Water specific gravity: 1.05 1 for fres 1.05
Gas specific gravity: 0.65 1 for air 0.65
0 mole fract 0
0 mole fract 0
0 mole fract 0
Formation volume factor of oil: 1.2 rb/stb 1.2
Wellhead temperature: 100 39
Tubing shoe depth: 5000 ft 1525
Bottom hole temperature: 150 65
Oil specific gravity = 0.88 1 for fres 0.88Mass associated with 1 stb of oil = 495.66 lb 224.54
Solution gas ratio at wellhead = 78.42 scf/stb 13.97
Oil formation volume factor at wel 1.04 rb/stb 1.04
Volume associated with 1 stb of oil 45.12 cf 1.28
Fluid density at wellhead = 10.99 lb/cf 175.60
Description: This spreadsheet calculates operating point using Poettmann-Carpenter Method with bottom hole node.
Instruction: 1) Select a unit system; 2) Update parameter values in the Input Data section; 3) Click "Solution" button; and 4) View result in the Result section.
oAPI
N2 content in gas:
CO2 content in gas:
H2S content in gas:
oF
oF
Solution gas-oil ratio at bottom hol 339.39 scf/stb 60.44
Oil formation volume factor at bot 1.18 rb/stb 1.18
Volume associated with 1 stb of oil 16.56 cf 0.47
Fluid density at bottom hole = 29.94 lb/cf 478.58
The average fluid density = 20.46 lb/cf 327.0944.63 lb/day-ft 66.31
Friction factor = 0.0084 0.01
Friction term = 390.50 99785
Error in liquid rate = 0.00 stb/d 0.00Bottom hole pressure = 1873 psia 12.74
Liquid production rate = 1,127 stb/d 179
Inertial force (Drv) =
(lb/cf)2
M=350 .17( γ o+WOR γw )+GOR ρair γ g
R s=γ g [ p18100.0125 API
100.00091 t ]1.2048
Bo=0.971+0 .000147 [R s( γ g
γo )0.5
+1 .25 t ]1 .175
Vm=5.615 (Bo+WOR Bw )+(GOR−Rs ) ( 14 .7p )( T520 )( z
1 .0 )
(Dρv )=1. 4737×10−5Mqo
D
f m=4×101.444−2.5 log (Dρv )
pwf=pwh+( ρ̄+ k̄ρ̄ ) H144
BottomHoleNodalOil.xls
0
MPa 3000 psia
m 1.66 in MPa 500 psia
1 stb/d-psi
1000 scf/bbl 1333.33 scf/stb
% 281.715940926745 bbl/d water 0.33333 bbl/stb
1 for fresh water 30
1 for fresh water 1.05 1 for fresh water
1 for air 0.65 1 for air
mole fraction 0 mole fraction
mole fraction 0 mole fraction
mole fraction 0 mole fraction
1.2 rb/stb
100
m 5000 ft
150
1 for fresh water kg
This spreadsheet calculates operating point using Poettmann-Carpenter Method with bottom hole node.
1) Select a unit system; 2) Update parameter values in the Input Data section; 3) Click "Solution" button; and 4)
sm3/d-MPa
sm3/m3
oAPI
rm3/sm3
oC oF
oC oF
sm3/m3
rm3/m3
m3
kg/m3
kg/day-m
MPa
1,127 bbl/d liquid 845.148 stb/d oil1,127
sm3/m3
rm3/m3
m3
kg/m3
kg/m3
(kg/cm)2
sm3/d
sm3/d
pwf=pwh+( ρ̄+ k̄ρ̄ ) H144
q=J¿ ( p̄−pwf )
0.13833333 ft
Gas rate = 1126864 scf/d
Z-factor Calculations:
Ppc = 670.5 psia
Tpc = 373.355
Wellhead Bottom hole
oR
Ppr = 0.745712 2.79364092
Tpr = 1.499913 1.63383375
A = 0.417544 0.48521254
B = 0.241867 1.05943151
C = 0.075659 0.06377348
D = 0.968267 0.99293848
z = 0.931813 0.84053747
