Pre-Injection Assessment of Time-Lapse Seismic Repeatability at the Aquistore CO2 Storage Site - presentation by Lisa Roach at the UKCCSRC meeting Monitoring of the deep subsurface, 23 October 2014
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The document provides an overview of the pre-injection assessment of time-lapse seismic repeatability at the Aquistore CO2 storage site. It details the data acquisition methods, permanent seismic array goals, and monitoring techniques used to evaluate CO2 injection and geological characteristics. Key personnel and organizations involved in the project are also mentioned.
Pre-Injection Assessment of Time-Lapse Seismic Repeatability at the Aquistore CO2 Storage Site - presentation by Lisa Roach at the UKCCSRC meeting Monitoring of the deep subsurface, 23 October 2014
- 1. Pre-Injection Assessment of Time-Lapse Seismic Repeatability at the Aquistore CO2 Storage Site 1
- 2. Overview of the Aquistore CO2 storage site Data acquisition Time-lapse repeatability results 2
- 3. 3 CO2 Capture CO2 Injection
- 4. 4 Power Generation Capture Plant
- 5. Surface-based Regional 3D seismic survey Geological characterization Baseline & time-lapse (?) Permanent seismic array Time-lapse imaging Electrical/electromagnetic Gravity Passive seismic (broadband & short period array) InSAR GPS Tiltmeters Groundwater & Soil gas monitoring Plume 5 Down-hole Cross-well seismic & VSP Cross-well & surface-to- downhole electrical monitoring Real-time P & T Passive seismic Fluid sampling Time-lapse logging Distributed Acoustic/Temperature Sensors (DAS/DTS) Heater cable Gravity Designed for: (1) project/plume monitoring; (2) public assurance; (3) research objectives Deformation Leakage In Situ
- 6. Aquistore Project Timeline Sep-11 Mar-12 Nov-12 Apr-13 Groundwater, Soil Gas, Passive Seismic Permanent & Baseline 3D Seismic Injection Well Site/Funding Agreements H2O Injection Test Observation Well Baseline VSP, Monitor II 3D Seismic Aug-12 Today GPS, Tiltmeters InSAR, Piezometers Crosswell Seismic, Monitor I 3D Seismic Nov-13 Site characterization Baseline Surveys CO2 Injection 2014 6
- 7. Goals of permanent array: improve repeatability demonstrate sparse array imaging provide passive monitoring capability 7
- 8. 8 Midale Beds Watrous “Red Beds” Prairie Evaporite Precambrian Deadwood Formation Colorado Shale Depth: 3.4km
- 9. 9 630 geophones Covers ~5 km2 20m depth Rx lines 144m In-line 72m
- 10. 260 shots Covers ~6 km2 1 kg Dynamite 15m depth Sx lines 288m In-line 144m Baseline – March, 2012 Monitor I – April, 2013 Monitor 2 – Nov, 2013 10
- 11. 11 Baseline Monitor 1
- 12. Dataset Equalisation (Common source/receivers) Trace Editing Amplitude Scaling Surface Consistent Amplitude Balancing Bandpass Filtering Surface Consistent Deconvolution Bandpass Filtering Refraction Statics (Common velocity model) Surface Consistent Residual Statics NMO Correction (Common velocity model) CDP Stacking Explicit FD 3D post stack migration 12
- 13. 13 Raw Stack Migrated Reservoir
- 14. 14 Baseline Monitor 1 Difference
- 15. 15 풏푹푴푺 풗풂풍풖풆풔 풓풂풏품풆:ퟎ −ퟐ Kragh and Khristie, 2002
- 16. 16 Cross-Equalised Raw Migrated nRMS=0.09 nRMS=1.13 nRMS=0.13 Roach et al. 2015 Geophysics – in review White et al. 2015 Geophysics – in review
- 17. 17 Monitoring Activities: Lisa Roach (GSC), S. Samsonov (CCRS), M. Craymer (CCRS), B. Roberts (GSC), J. Henton (CCRS), M. Czarnogorska, J. Silliker (CCRS), Tom Daley (LBNL), Michelle Robertson (LBNL), Chevron Management: Petroleum Technology Research Centre (Kyle Worth, Neil Wildgust, Aleana Young, Joseph Lazlo) Operations: Sask Power, Schlumberger Carbon Services (Jared Lee Walker, Marcia Couëslan, Bob Will, Wade Zaluski) Science & Engineering Research Committee: Rick Chalaturnyk (U Alberta), Chris Hawkes (U Sask), Ben Rostron (U Alberta), Jim Johnson (Schlumberger-Dole), Jim Sorensen (EERC), Don White (GSC) Contractors: Western-Geco, RPS Boyd-PetroSearch, Geospace, Silixa, Sercel, Tesla
- 18. 18 Thank You For Your Attention!