Transcript AWS Presentation

Acoustic Well Sounding
for Windows
Sirius
Petroleum Software
AWS
AWS uses acoustic well sounding data and fluid
levels, to calculate the pressure at midpoint of
perforations of oil wells. The program calculates
the gas and fluid column pressures separately,
and adds or subtracts these, to determine the
pressure at MPP. Several different methods are
available to calculate the gas column pressure.
The results can be plotted, checked and reported
on a well, group, pool or total basis.
AWS
Agenda
•
•
•
•
Well data
Pool data
Fluid analysis 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.
• Elevations: KB, CF, Perforations, Tubing,
and Casing.
• Fluid shots: Type of test, date, casing /
tubing pressure, watercut and fluid level.
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Well Data
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Test Table
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Test Data
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Fluid Level Diagram
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Pool Data
• Basic Data: Pool name, Field name, and
fluid analysis name.
• Reservoir Data: Datum, G/O contact, O/W
contact and formation temperature.
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Pool Data
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Fluid Analysis Data
• Oil properties.
• Water properties.
• Full Gas Analysis: 12 Component gas
analysis including N2, CO2 and H2S, C7+
properties (Molecular Weight, Specific
Gravity)
• Simple Gas Analysis: 3 non-HC including
N2, CO2, and H2S, and a total gas specific
gravity.
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Fluid Analysis
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Simple Gas Analysis
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AWS
Special Features
• Gas PVT correlations
– Gas gravity correlation (Thomas, Hankinson and
Philips, 1970)
– Sour gas correction (Wichert and Aziz, 1972)
– z-factor correlation (Biggs and Brill, 1987)
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AWS
Special Features, cont.
• Fluid Levels
– enter fluid level
– enter # of joints
– enter echo return time (sec)
• Gas Column
– Average Density Method (1972)
– Average z-factor average temperature Method
– Cullender and Smith (1959)
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AWS
Special Features, cont.
• Results
– Calculates gas, water, oil and mixed columns
– Calculates MPP pressure
– Calculates tubing fluid level based on casing fluid level
• Limitations
– 99 wells, 10 pools, 10 groups, 25 leases and 10
companies
– 20 different fluid tests per well
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System Options
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Correlations
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Solution Options
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Output, Reports and Graphs
• Numerous reports
– well, pool, group, lease, company, etc.
• Numerous graphs
– well, pool, group, lease, company, etc.
• Map
– well results.
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Reports
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Reports
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Reports
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Reports
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Graphs
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Gas Analysis
Deepdown
Simple Gas Analysis
1.00
0.95
0.90
0.85
0.80
0.75
0.70
Mo le fr a ctio n
0.65
0.60
0.55
0.50
0.45
0.40
0.35
0.30
0.25
0.20
0.15
0.10
0.05
0.00
N2
C02
H2S
Hydrocarbons
Components
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Temperature Gradient
100
95
90
85
80
75
70
65
60
55
50
45
40
35
30
25
20
15
10
5
0
Example #1 Well
Well Temperature Gradient
0
-100
-200
-300
-400
De p th ( m- CF)
-500
-600
-700
-800
-900
-1000
-1100
-1200
-1300
-1400
-1500
Temperature (°C)
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Pressure Gradient
2500
2000
1500
1000
500
0
Example #1 Well
Well Casing Pressure Gradient
0
-100
-200
-300
-400
De p th ( m- CF)
-500
-600
-700
-800
-900
-1000
-1100
-1200
-1300
-1400
-1500
Pressure (kPaa)
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Well Results Map
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