Presentation on theme: "10 years of SLEIPNER CO2 Storage"— Presentation transcript:
1 10 years of SLEIPNER CO2 Storage Classification: Internal Status: Draft10 years of SLEIPNER CO2 StorageTore A Torp, Dr.ing. Adviser CO2 Storage, StatoilHydro ASA, Norway
2 11 years of SLEIPNER CO2 Storage CONTENT:“Low Carbon Diet”Industrial Experiences with CO2Sleipner, In Salah, K12B, Ketzin, Snohvit and ???VISION
3 Sleipner CO2 injection: - Decided in In operation since million tonne CO2/år Time Magazine, 17. May 2004
4 Previous Experiences with CO2 & Injection Enhanced Oil Recovery (Texas, Hungary, Turkey, Brazil,Croatia)Natural gas cleaningTransport – Pipelines & ShipsNatural gas re-injectionNatural gas underground storage andBeer & soft drinks, dry cleaning, food packaging – Every day life
9 SALINE AQUIFER CO2 STORAGE PROJECT BGSBRGMGEUSIFPNITG-TNOSINTEFStatoilBPExxonMobilTotalNorsk HydroVattenfallIEA Greenhouse Gas R&D ProgrammeSchlumberger ResearchNO, DK, NL, FR & UK Authorities
10 Time-lapse seismic datasets of CO2 stored in Utsira formation As mentioned – a very important part of the Sleipner CO2 injection project has been to monitor the behaviour of CO2.These pictures show seismic datasets over the period It clearly shows that CO2 is contained in the formation by an overlaying cap-rock.
11 1 km CO2 distribution June 2006 Plume extension & top Utsira time mapCO2 distribution June 20068,4 million tonnes injected over 10 yearsPlume area: 2,8 km2 (1,3 km2 in 2001)Plume long axis: 3760 mMaximum distance from injection point: 2560mMaximum speed of front since 2004: 250 m/year,Distance from CO2 to wells:Exploration well 15/9-13: 430m, decreasing about 12 m/yearD-template: about 2 km straight west of northern plume15/9-19 wells: about 4,5 km north of plumesaddle3,76 kmInjection point15/9-13Seismic sectionPlume outline June 2006430mPlume outline Oct 20011 kmAmplitude maps of the uppermost horizon, in 2001 (left), 2004 (middle) and 2006 (right). Hot colours represent higher amplitudes and thicker CO2 accumulation.
12 Simulated picture of the distribution of CO2 after three years. Radius of largest bubble 800 m and the total plume 200 m high.Ref: SINTEF Petroleum 2001
13 Dissolution of CO2 in the Utsira Brine Year 2412Year 2021Year 2621Year 5019Year 7018Source: Gemini No. 1, 2004 (NTNU and Sintef)
14 3D Seismic proven, Gravimetry tested SACS ProjectWHAT WE DID ACHIEVE:3D Seismic proven, Gravimetry testedReservoir simulation tools partly provenGeology and Geochemistry of “Utsira” mappedReason to expect the CO2 to stay for thousands of years DOCUMENTATION“SACS Best Practice Manual, 1.version.”Download from see page “SACS”.
15 Demonstrations of CO2 storage SLEIPNERSNØHVITWEYBURNKETZININ SALAHFRIO BRINENagaokaK12BGORGONSource: IEA GHG
18 What is keeping the CO2 down? Trapping MechanismsClosure - from day one –faults?Micro-pore trapping - during injection - lastingDissolution in water - sinking to the bottom – centuriesMineral binding - precipitating solids – centuries/millennia
19 Possible Leakage? Leakage ways? WELLS - Corrosion of cement & steel Faults/Cracks – Overpressure criticalUnderground fluid mobility – Site specific PreventionDetectionRemediation
20 Monitoring and safety over TIME? Before start: Site selection, Planning and Risk assessment =>licenceDuring injection: Monitoring – “Watch the barn doors” => reportClosure: Monitoring and long-term risk => agreementPost-closure: Monitoring gradually less => hand-over Safety against leakage will be better over time!
21 CO2 Capture and Storage (CCS) needs two legs to walk! Leg 1: TRUST in StorageMethods from oil and gas industryGeology varies from place to place More demonstrationsLeg 2: COST of CaptureEnergy useCosts Better technologiesPace: CO2 TransportPipelineShip Large projects