combined modelling and wellbore network meeting
TRANSCRIPT
Combined Modelling and Wellbore Network MeetingPerth, 27 – 29 April 2011
In Salah – Reservoir Engineering and then?Bert van der Meer, Senior Reservoir Engineer
10 januari 20111
Outline
• Introduction• In Salah the project• Reservoir Engineering• Geomechanics• Conclusions
10 januari 2011Bert van der Meer, Senior Reservoir Engineer
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10 januari 2011Bert van der Meer, Senior Reservoir Engineer
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InSAR, Observation Tool
Frac, Fault, Permeability
Geomechanics
Publications• Philip Ringrose, first break.• Philip Ringrose, et al., (GHGT-10)• Allan Mathieson, et al., (GHGT-9)• Allan Mathieson, et al., (GHGT-10)• Takumi Onuma, et al., (GHGT-9)• Takumi Onuma, et al., (GHGT-10)• Jonny Rutqvist, ppt presentation
• D. Vasco, LBNL Paper • Sevket Durucan, et al., (GHGT-10)• Martin Iding, et al., (GHGT-9)• R. Bissell, et al., (GHGT-10)• James Smith, et al., (GHGT-10)
• J. Morris, et al., (GHGT-10)• Jonny Rutqvist, et al., (GHGT-9)
CO2ReMoVe Project (Research, Monitoring, Verification)
Monitoring In Salah performance
In Salah CCS (Algeria)
10 januari 2011Bert van der Meer, Senior Reservoir Engineer
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By: Wright (2006)
In Salah Top Structure
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By: Wright (2006)
Vertical Displacement
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By: Onuma (2008)
Two Models
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By Schlumberger (natural fractured)
KB-5
KB-502
KB-5
KB- 502
By Statoil (fault)
The Schlumberger Model
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•History Matched with estimated BHP from THP.
•Problems with ECLIPSE 300
•Version 2009.2 problems resolved
The Statoil Model
10 januari 2011Bert van der Meer, Senior Reservoir Engineer
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150
200
250
300
350
400
450
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
Bot
tom
hole
Pre
ssur
e [b
arsa
]
KB-501W-STATOIL
KB-501W-SLB
0
200000
400000
600000
800000
1000000
1200000
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
CO
2 Inj
ectio
n R
ate
[Sm
3 /d]
KB-501W-STATOIL
KB-501W-SLB
150
170
190
210
230
250
270
290
310
330
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]B
otto
mho
le P
ress
ure
[bar
sa]
KB-502Z-STATOIL
KB-502Z-SLB
0
200000
400000
600000
800000
1000000
1200000
1400000
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
CO
2 Inj
ectio
n R
ate
[Sm
3 /d]
KB-502Z-STATOIL
KB-502Z-SLB
150
200
250
300
350
400
450
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
Bot
tom
hole
Pre
ssur
e [b
arsa
]
KB-503Z-STATOIL
KB-503Z-SLB
0
200000
400000
600000
800000
1000000
1200000
1400000
1600000
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
CO
2 Inj
ectio
n R
ate
[Sm
3 /d]
KB-503Z-STATOIL
KB-503Z-SLB
e: KB-501W - BHP
c: KB-502Z - BHP
a: KB-503Z - BHP b: KB-503Z – CO2 Inj. Rate
d: KB-502Z – CO2 Inj. Rate
f: KB-501W – CO2 Inj. Rate
150
200
250
300
350
400
450
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
Bot
tom
hole
Pre
ssur
e [b
arsa
]
KB-501W-STATOIL
KB-501W-SLB
0
200000
400000
600000
800000
1000000
1200000
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
CO
2 Inj
ectio
n R
ate
[Sm
3 /d]
KB-501W-STATOIL
KB-501W-SLB
150
170
190
210
230
250
270
290
310
330
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]B
otto
mho
le P
ress
ure
[bar
sa]
KB-502Z-STATOIL
KB-502Z-SLB
0
200000
400000
600000
800000
1000000
1200000
1400000
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
CO
2 Inj
ectio
n R
ate
[Sm
3 /d]
KB-502Z-STATOIL
KB-502Z-SLB
150
200
250
300
350
400
450
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
Bot
tom
hole
Pre
ssur
e [b
arsa
]
KB-503Z-STATOIL
KB-503Z-SLB
0
200000
400000
600000
800000
1000000
1200000
1400000
1600000
1-1-2004 31-12-2004 31-12-2005 31-12-2006 1-1-2008 31-12-2008
Time [date]
CO
2 Inj
ectio
n R
ate
[Sm
3 /d]
KB-503Z-STATOIL
KB-503Z-SLB
e: KB-501W - BHP
c: KB-502Z - BHP
a: KB-503Z - BHP b: KB-503Z – CO2 Inj. Rate
d: KB-502Z – CO2 Inj. Rate
f: KB-501W – CO2 Inj. Rate
1/ Model made larger
2/ History Matched SLB data
3/ history extended
The Statoil HM
10 januari 2011Bert van der Meer, Senior Reservoir Engineer
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KB-502Z
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KB-502Z (2)
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Conclusions from simulation
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• Well configurations not responsible surface movement humps
• Fault as such not responsible surface movement humps
• Reservoir description not suitable• Engineered permeability distribution not the solution
(Vasco, Durucan)
Against! = Solution Engineering
No geological justification
Geomechanics?
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• 3 problems to solve– Shape (2 humps)– Impact (largest vertical displacement rate)– Not reversible? (vs. KB-501 and KB-503)
• Further considerations:– Amplification mechanism?– Close to gas reservoir (pressure depletion)– Pressure drop after shut-in – Must be reservoir + overburden effects
Est. FBHP vs. Min. Horizontal Stress(σh)
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295σh0
295σh0
σhσh
pf
)()(0 pT hhhh σσσσ Δ+Δ+=
Modeling exercise
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Geomechanical modeling (TNO
semi-analytical model AEsubs)
Surface uplift due to reservoir
pressurization
Surface movement due to fault
pressurization:
depression plus two-lobe uplift
Conclusions and Remaining questions
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Combined pore pressurization and fault pressurization
Initial surface movement too small with used history match + elastic modulus
Non-linearity between surface movement and history-matched reservoir
pressures
Surface movement depression seems too narrow for fracture at reservoir
depth
Pressure drop in well pressure
Conclusions (2)
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If geomechanics no influence on flow properties i.e. de-coupled simulationIs INSAR data a monitoring tool?Better geology needed of reservoir and overburden Geomechanical properties total spaceMore realizations with simulation solutions/tools
Questions?
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