Feb 14, 2013 ... Statoil's experiences from 16 years of CO. 2 ... Sleipner. In Salah. Source: Ola
Eiken, Statoil ... Source: SACS best Practice Manual. Stable…
Statoil’s experiences from 16 years of CO2 storage at Sleipner, Snøhvit and In Salah
2013-02-14
Snøhvit
In Salah
Sleipner
Source: Ola Eiken, Statoil
2
Sleipner CO2 injection: - Decided in 1992 - In operation since 1996 - 1 million tons of CO2/yr
Time Magazine, 17. May 2004
3
The Utsira Formation
4
CO2 Injection well in "Utsira" Sleipner A 0
Sleipner T North Sea
500m
CO
2
Injection
W ell
1000m
CO CO2
Utsir a Utsira F or
2
1500m
Sleipner East Production and Injection Wells W ells 2000m
0
500m
2500m
Heimdal Formation
5
1000m
1500m
Accumulated injected CO2 [million tons]
12 11 10 9 8 7 6 5 4 3 2 1 0 1996 1997
1998 1999 2000
2001 2002 2003
2004 2005 2006
Year
6
2007 2008 2009
2010
Reservoir characterization at Sleipner ….. but we still learn more
Stable…..
Wellhead pressure (bar)
Wellhead pressure 90 80 70 60 50 40 30 20 10 0
13-Sep-96
15-Mar- 97
14-Sep- 97
16- Mar- 98
15- Sep-98
17-Mar-99
16-Sep-99
17-Mar -00
16-Sep- 00
18-Mar- 01
17-Sep- 01
Date
Source: SACS best Practice Manual
Source: Munkejord et al, Combining thermodynamic and fluid flow modelling for CO2 flow assurance, paper submitted to GHGT11, Kyoto 2012
7
Classificati on: Internal 2012 10 10
8
top layer
all layers
25
amp * area
Sleipner CO2 seismic monitoring
30
20 15 10 5 0 0
2
4
6
8
mill. tons
910
9
1 km
Classification: Internal
2010-04-14
1999 2002 2001 2008 2006 2004
Increasing amplitude
Time [ms]
855
10
Snøhvit
Sleipner
In Salah
Source: Ola Eiken, Statoil
10
11
12
2013-02-14
13
In Salah Satellite Monitoring
First TRE dataset (2003-2007) PSInSAR™ revealed ~5mm uplift over the CO2 injectors
KB-5 KB-503 KB-502
KB-501
Vasco et al. Geophysics Journal, Vol. 73, 2008
0
Classification: Internal
2011-06-29 10
km
-5
0
mm/yr 13 5
Snøhvit
Sleipner
In Salah
Source: Ola Eiken, Statoil
14
Snøhvit – All subsea
Depth: 330 m
160 km
15
Snohvit CO2 Injection
16
Reservoir characterization at Snøhvit Dry-out
Reperforation
Shut-ins
Source: Hansen et al, Snøhvit: The history of injecting and storing 1 Mt CO2 in the fluvial Tubåen Fm., paper submitted to GHGT11, Kyoto 2012
17
CO2 flow assurance? • "Ensuring successful and economical flow of CO2 stream from source to storage" • Same multi-disciplinary set of tools as for hydrocarbons. Main difference is thermodynamic behaviour of CO2: − Critical point "in the middle" of operating window − Triple point can be reached during depressurization − Heavy, non-combustable and asphyxiating − Hydrate formation − Corrosion with water, O2 and/or NOx − Strong Joule-Thomson effect • From operating experience, some reservoir characterization can be done with flow assurance tools
18
10000 1000
solid
10
vapour -60
1
Pressure [bar]
100
liquid
-40
-20
0
20
40
60
80
Temperature [oC]
19
100
Presentation title: Statoil’s experience from 16 years of CO2 storage at Sleipner, Snøhvit and In Salah Presenters name: Bjørn Berger Advisor new Energy E-mail address :
[email protected] Tel: +4748034885 www.statoil.com
20
Classification: Internal
2013-02-18
Laying of the Snøhvit subsea pipeline
