iea ghg weyburn-midale co2 storage and monitoring project 7b/1. mr.william daniel gunter.pdf · 0...
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IEA GHG Weyburn-Midale CO2Storage and Monitoring Project
William Daniel GunterAlberta Research CouncilCCS in the Power Sector
Delhi, India, January 22-23, 2008
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“To predict and verify the ability of an oil reservoir to securely and economically contain CO2 (geologically) through a comprehensive analysis of various process factors as well as monitoring and modeling methods intended to address the long-term migration and fate of CO2 in a specific environment (EnCana’s Weyburn, Saskatchewan EOR operation)”
Phase 1: 2000-2004
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Phase I Project Overview
Launched in July 2000 by PTRC in collaboration with EnCana
Assess technical and economic feasibility of CO2 geological storage
The CO2 is pipelined from Dakota Gasification Co. plant in Beulah, N. Dakota, USA and injected into the Weyburn oil field at an initial average rate of 5000 tons/day, for a total of approx. 20 million tones over the 20-year life of the project
Funded by 15 industry and government sponsors (Canada, USA, Japan, European Union)
Employed 22 technology organizations and some eighty specialists in six countries
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0
10,000
20,000
30,000
40,000
50,000
Date
bbl/d gross
WaterfloodHz Infills
Vertical Infills CO2Actual
1955 1965 1975 1985 1995 2005 2015
Projected
CO2
• 7 million tonnes (net) of CO2 injected by end of 2005
• 26+ million tonnes (net) will be geologically stored by 2035
• 18,000 incremental bopd (30,000 bopd total unit prod’n)
• world’s largest, full‐scale, in‐field MMV study with CO2‐EOR
EnCana Corporation
EnCana’s Weyburn Unit Production Data
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Weyburn CO2 Storage System
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Geological Model
Areal extent 10 km beyond CO2 flood limitsGeological architecture of systemProperties of system
• lithology• hydrogeological
characteristics• faults
Can be tailored for different RA methods and scenario analyses
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G. Burrowes,pers. com. 2001
True Dip <2°
• Midale beds of the Mississippian Charles Fm. of the Williston basin• Weyburn field lies near the Mississippian unconformity
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Monitoring Techniques4D, 3C surface seismic4D, 9C surface seismic3D, 3C vertical seismic profile (VSP)Cross-well seismicGeochemical sampling analysisTracer injection monitoringConventional production data analysisPassive seismicSurface monitoring techniques
IEA GHG Weyburn CO2 Monitoring and Storage Project
1500m
3000m
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CO2 + H2O ↔ H2CO3 & H2CO3 + Calcite ↔ Ca2+ + 2HCO3-
Tracking CO2 Chemistry: Fluid Monitoring Surveys (Phase 1)
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4D-3C Time-Lapse Seismic Surveysvs. Baseline survey (Sept. 2000)
2001-2000 2002-2000
Marly Zone
IEA GHG Weyburn CO2 Monitoring and Storage Project
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Gas Saturation with Time
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Prediction & Risk Assessment of COPrediction & Risk Assessment of CO22 Storage over timeStorage over time
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Final Phase of IEA GHG Weyburn-MidaleCO2 Storage and Monitoring Project
NonNon--Technical ComponentTechnical Component• REGULATORY
• Clear, Workable and Science-based Regulations for CO2 Geologic Storage
• PUBLIC COMMUNICATIONS• Public Awareness• Driven by the need for better public awareness of CO2 geological
storage, especially on the issue of safety.
• FISCAL POLICY
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Final Phase of IEA GHG Weyburn-MidaleCO2 Storage and Monitoring Project
Technical Components• GEOLOGICAL INTEGRITY• WELLBORE INTEGRITY• STORAGE MONITORING METHODS (Geophysics &
Geochemistry)
• RISK ASSESSMENT; Storage and Trapping Mechanisms; Remediation Measures; Environment, Health and Safety
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Best Practices Manual – Final Phase
Protocols for:
• Storage site selection
• Monitoring and verification of stored CO2
• Well-bore integrity monitoring and remediation
• Long-term risk assessment and risk management
• Maximizing economic CO2 storage capacity
IEA GHG Weyburn‐Midale CO2 Monitoring and Storage Project
Overarching Principles: Address gaps in IPCC CCS Report and facilitate good public policy development to ensure widespread deployment of long‐term CCS
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Final Phase: Partners to Date
Research Organizations
Government Sponsors
• Natural Resources Canada• United States Dept. of Energy• IEA GHG R&D Programme• Sask Industry and Resources• Alberta Energy Research
Institute• RITE (Research Institute
of Innovative Technology for the Earth)
• Alberta Research Council (ARC)• Canadian Light Source –
Synchrotron• ECOMatters (ECOM)• Geological Survey of Canada (GSC)• Permedia Group• Saskatchewan Research Council
(SRC)
• Fugro Seismic Imaging• Lawrence Livermore National
Laboratories
• University of Bristol UK• International Energy
Agency
Industry Sponsors
• SaskPower.• Schlumberger• Shell
• Apache• EnCana• Chevron• OMV Austria• Aramco Services
Co
• T.L. Watson & Associates• University of Regina (U of R)• University of Sask. (U of S) • University of Alberta (U of A) • University of Calgary (U of
C)• URS Canada Inc.
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Project Contacts
Dr. Carolyn Preston, Executive Director PTRCEmail: [email protected]
Ray Knudsen, Project DirectorEmail: [email protected]
Dr. Frank Mourits, Project IntegratorEmail: [email protected]