Transcript OilTank Presentation

Oil Tank
for Windows
Sirius
Petroleum Software
OilTank
OilTank uses reservoir pressure and produced
volumes of oil, water and gas from individual
wells and determines the IOIP using volumetric
and material balance methods. Results are
summarised by well, group, pool, lease and
company.
OilTank
Agenda
•
•
•
•
•
Well data
Pool data
Lease data
Oil analysis and PVT data
Special Features, System Options, Methods and
Correlations
• Output Reports and Graphs
• Demo
• Questions
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Well Data
• Wells are defined with a pool, group and a
lease.
• Basic Data: Well name, UWI, group and
lease.
• Volumetric Data: Drainage area, netpay,
porosity, water saturation.
• Material Balance Data: Pressure and
production history.
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Well Data
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Volumetric Data
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Material Balance Data
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Analysis Options
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Analysis Results
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Pool Data
• Basic Data: Pool name, Field name, and
gas analysis name.
• Reservoir Data: Current pressure,
formation temperature, and abandonment
pressure, rock and water compressibility.
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Pool Data
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Lease Data
• Basic Data: Lease name or number, number
of wells in lease, working interest for each
company.
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Lease Data
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Oil Analysis Data
• PVT table with pressure, Bo, Rs, Bg, and
Bw.
• Bubble point pressure and water
compressibility.
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Oil Analysis
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PVT Plots
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OilTank
Special Features
•
•
Data Selection
– Data selection: all points, all selected points, or all selected by type.
Analysis Methods
– Full Material Balance, Pressure method
– Full Material Balance, IGIP method
– Full Material Balance, Havlena & Odeh (1963-64) method (no gas cap)
– Full Material Balance, Havlena & Odeh (1963-64) method (with gas cap)
– Full Material Balance, McEwen (1962)
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System Options
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Output, Reports and Graphs
• Diagram of results
• Numerous reports
– well, pool, group, lease, company, etc.
• Numerous graphs
– well, pool, group, lease, company, etc.
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Diagram
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Reports
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Graphs
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Material Balance Results
Amyx Well#1
History Pressure versus Material Balance Pressure
4000
3500
2500
2000
1500
1000
500
4000
3500
3000
2500
2000
1500
1000
500
0
0
Material Balance Pressure (psia)
3000
History Pressure (psia)
Used
Static
gradient
data
un-Used
Static
gradient
data
Equal
Pressure
line
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Pressure History
Amyx Pool
Pool Average Reservoir Pressure versus Time
4000
3500
2500
2000
1500
1000
500
1941
1940
1939
1938
0
1937
Reservoir Pressure (psia)
3000
Time (Years)
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Production History
Amyx Pool
Pool Cumulative Oil Production versus Time
150000
140000
130000
120000
100000
90000
80000
70000
60000
50000
40000
30000
20000
10000
1941
1940
1939
1938
0
1937
Cumulative Oil Production (MSTB)
110000
Time (Years)
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