Part IV - Well productivity estimating methods
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Geological uncertainty
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Prepared by Alexey Khrulenko, 2011
Drainage Strategy
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Prepared by Alexey Khrulenko, 2011
Well completion scenario
Tubing
Casing
ICVs
Packer |
Perforation |
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intervals |
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Prepared by Alexey Khrulenko, 2011
ICV Optimization Methodology
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Prepared by Alexey Khrulenko, 2011
Simulation Results: Cumulative oil production with ICVs and its incremental volumes as compared with ordinary completion wells
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нефти |
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production,oilCum million |
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добыча |
м3 |
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станд |
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Sm |
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Накопленная |
млн |
10 |
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8 |
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0 5 10 15 20 25
Время, лет
Prepared by Alexey Khrulenko, 2011
Years
QQн #1o, Scen(ВТЗ) 1
QQн #2o, Scen(ВТЗ) 2
QQн #3o, Scen(ВТЗ) 3
QQн #4o, Scen(ВТЗ) 4
QQн #5o, Scen(ВТЗ) 5
ПриростIncremental,Qн для #11
ПриростIncremental,Qн для #22
ПриростIncremental,Qн для #33
ПриростIncremental,Qн для #44
ПриростIncremental,Qн для #55
Discounted effect, ICVs performance
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500 |
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400 |
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million |
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300 |
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эффект |
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$ |
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effect, |
млн. $ |
200 |
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Discounted |
100 |
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Дисконтированный |
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0 |
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10 |
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15 |
20 |
25 |
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-100 |
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Time, years |
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Время, лет |
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Prepared by Alexey Khrulenko, 2011 |
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#1 |
#2 |
#3 |
#4 |
#5 |
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Position of ICV in one of the wells
Prepared by Alexey Khrulenko, 2011
Uncertainty in Forecasting
a Well Productivity
15 September 2012 |
68 |
Uncertainty in Forecasting a Well
Productivity
Porosity-permeability correlation |
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Sorokin Trend, Triassic sandstones |
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Depth - po osity trend |
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Sorokin Trend, Triassic sandstones |
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Porosity-permeability trend |
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Depth - permeability trend |
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0.35 |
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10080.3 |
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mD |
70.25 |
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60 |
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Permeability,Porosity |
0.2 |
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mD |
50 |
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Permeability, |
0.15 |
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40 |
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0.1 |
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130 |
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0.05 |
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20 |
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10 0 |
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500 |
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1500 |
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2500 |
3000 |
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3000 |
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Depth, m |
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1 |
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Depth, m |
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0.05 |
0.1 |
0.15 |
0.2 |
0.25 |
0.3 |
0.35 |
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Porosity |
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15 September 2012 |
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69 |
Uncertainty in Forecasting a Well
Productivity
Production rate forecast
Production rate
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1.0 |
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distribution |
0.8 |
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0.6 |
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Cumulative |
0.4 |
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0.2 |
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0.0 |
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100 |
1000 |
10000 |
100000 |
Rate, bopd
15 September 2012 |
70 |