Schlumberger Carbon Services Performance and Risk Approach to CO2 Storage Integrity

Transcription

1 Performance and Risk Approach to CO2 Storage Integrity CO2 Capture and Storage Response to Climate Change CO2Net East Regional Workshop Zagreb, February, 2007 Hanspeter Rohner

2 Agenda 2 Geological Storage of CO2 Workflow Performance and Risk management Technologies as part of Performance and Risk Management Example

3 CO2 Capture and Geological Storage Other CO2 Streams LNG process CO2-rich gas production Gas-to-Liquid process Heavy Oil production Coal-to-Liquid process Hydrogen production Oil Refineries Steel mills Cement factories Aluminum smelters 3 Saline Aquifers

4 -25 to to to -5-4 to -2-1 PREVENTION Light Serious Major Catastrophic Multi-Catastrophic BLACK NON-OPERABLE: Evacuate the zone and or area/country RED IN TO LE RA B LE : D o n ot take th is risk YELLOW GREEN BLUE MITIGATION Control Measures UNDESIRABLE: ACCEPTABLE: N E GLIG IBL E: 1-1 1L -2 1S -3 1M -4 1C -5 1MC Demonstrate ALARP before proceeding Proceed carefully, with continuous im provement S afe to proceed 2-2 2L -4 1S -6 2M -8 2C -10 2MC 3 LIKELIHOOD -3 3L -6 3S -9 3M -12 3C -15 3MC W hite arrow indicates decreasing risk 4-4 4L -8 4S -12 4M -16 4C -20 4MC 5-5 5L -10 5S -15 5M -20 5C -25 5MC The CO2 Storage Workflow 4 Pre-Operation Phase Site Selection Site Characterization (SCP) Field Design ~ 1-2 year Operation Phase ~ years Post-Injection Phase Site Construction Site Retirement Programme (SRP) Site Preparation Injection Monitoring (M&V) Operation Verification Environmental Performance & Risk Management System (PRSM) Communication and Public Acceptance Probable Likely Possible Unlikely Improbable ~ 100+ years SEVERITY

5 Performance and Risk Management 5 Assure optimal Performance of a CO2 storage system Performance & Risk Assessment Functions Capacity Injectivity Containment Stakes Cost Environment Health & Security Image Risk Model Consequences Risk Matrix Remediation Plan Risk Treatment Actions

6 Site Characterization and Modeling 6 Measurements (Characterization) Seismic Data well Performance & Risk Analysis Injectivity CO2 in place Leakage Scenarios and rates Risk classification Modelling & Simulation Structure Properties Fluid dynamics Tool Response Monitoring plan Sensor selection Specifications Placement Monitoring sensors response prediction

7 Characterization Tools and Software 7 Measurements Seismic FMI PEx ECS Sonic Scanner MDT Illite (ELAN+core) Chlorite (ELAN+core) illite chlorite Modeling Petrel Eclipse / Eclipse-Geomechanics

8 Static and Dynamic Modeling (Petrel/Eclipse) Calibration History match Post processing Presentation Surface imaging Mapping EM survey interpretation Data input Information management GIS database Log interpretation Well correlation Surface identification Surface/subsurface interaction Data analysis Facies modelling Fault modelling Fracture modelling Hydrodynamic test analysis 8 Eclipse 3D flow simulation Geochemistry Geomechanics 3D Geological model 3D Property model of the Reservoir and the Overburden Uncertainty analysis Upscaling processes Reservoir and Aquifer property population

9 Schlumberger Storage Technologies (cont.) 9 Well Construction Drilling and Cementing Technologies After one month in supercritical CO2 (280 bar, 90 DegC) Standard Neat system Advanced cement system Carbonation rim: 6 mm Carbonation rim: 0.2 mm Well Planning Geosteering Stable Boreholes CO2-Resistant Cement

10 During and after Injection Monitoring 10 Performance & Risk Analysis Measurements (Monitoring) Geophysics Well Logging Sampling Surface / atmosphere Injectivity CO2 in place Leakage scenarios and rates Risk classification Measurement interpretation Model update Monitoring sensor response prediction Simulation Structure Properties fluid dynamics Tool response

11 Monitoring Technologies 11 CO2 Plume Displacement and Cap Rock Integrity Monitoring RST CHFR Sampling 4D-Seismic VSP X-Well EM Top Utsira Sand Sleipner Micro Seismicity Cross Well EM Res Well Integrity Monitoring Cement and Completion Integrity Logging IBC EMIT Corrosion.

12 A Continuous Process 12 Performance & Risk Analysis Characterization Modeling Certification at start Injection start Monitoring Performance & Risk Analysis Modeling Intervention Mitigation Repair Certification and Transfer of liabilities time

13 Example Containment 13 What are the most likely hypothetical risks of leakage? Migration along wellbores Geological leakage paths Failure of sealing cap rock Re-activation of faults and fractures Along wellbores Along faults and fractures

14 Example Managing Well Integrity 14 Data & input Cement degradation Casing corrosion CO2 migration Limit conditions Dynamic model Characterisation Cement logs Drilling reports Well geometry Conclusions Static model An Integrated Performance and Risk Management Solution Leak amount & probability Can we re-use existing wells? More data needed? Probability of leakage Type of leakage to expect minor weak middle high critical Sensitivity analysis Risk mitigation options Cost / Benefits ranking 5 B = Detection Evolution = Level 1 : Minor 2 : Marginal 3 : Serious 4 : Major Stakes 5 : Critical 6 : Catastr. F Financial <0,2 M <1 M <5 M <20 M >20 M A Reliability & availability. X B Asset People C SAFETY 3rd-P Consequence grid & transfert fonction Envir.

15 Schlumberger Activities in CO2 Storage and EOR 15 USA and Canada Weyburn EOR Canada Frio Texas Battelle Ohio-W.Virginia Sheep Mountain Colorado Multiple CO2 EOR studies, Permian Approx 70 CO2 EOR Installations Europe, North Africa & Russia Sleipner Norway Snohvit Norway In-Salah Algeria Hassi Touareg Algeria Hannibal Tunisia Ketzin Germany Karniow Poland Various CO2 EOR studies CO2ReMoVe Cosmos 1+2 MoveCBM COACH NZEC ANR monitoring project Middle East & Asia Multiple CO2 EOR feasibility studies Associated CO2 prod re-injection studies MoveCBM China Australia Gorgon Barrow Island Otway Basin CO2CRC Callide Queensland

16 16 Thank You!