FWP-FEW0191 Task 5
Lawrence Livermore National Laboratory's Research Activities to Support DOE's Carbon Storage Program
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LLNL - Lawrence Livermore National Laboratory
Livermore, California
Project Duration: 10/01/2014 – 09/30/2017
Award Number:
Technology Area:
Geologic Storage (GS)/Monitoring, Verification, Accounting, and Assessment (MVAA)
Total Award Value:
Key Technology:
Task 1 – GS: Geochemical Impacts
Task 2 – GS: Mitigation
Task 3 – GS: Fluid Flow, Pressure, and Water Management
Task 4 – GS: Fluid Flow, Pressure, and Water Management
Task 5 – MVAA: Subsurface Monitoring

DOE Share:

Performer Share:

Task 5 - Novel Monitoring Techniques for CO2 Storage Using Large-N Seismic Arrays

The objective of this task is to apply novel monitoring techniques to CO2 storage. The first is a method to image the subsurface using background noise, called ambient noise correlation (ANC). The second technique, the virtual seismometer method (VSM), significantly increases resolution in tectonically active features. This will help monitor changes in pressure fields related to microseismicity. The third technique will use combined seismic and electromagnetic monitoring in porous media to image subsurface fluids. The different yet complementary measuring sensitivities of seismic and electromagnetic monitoring will likely yield a superior image. Finally, particular interest will be given to the testing of fiber optic arrays, as both ANC and VSM become more powerful as the number of sensors increase. Additional data gathered using this technique could help expand these monitoring techniques to CO2 storage.