95. june 9 fs experiment birkholzer
TRANSCRIPT
Used Fuel Disposition Campaign International Collaboration in Disposal Research: FS Experiment at Mont Terri Jens Birkholzer Lawrence Berkeley National Laboratory FCT UFD Working Group Meeting “International Session” UNLV, Las Vegas, NV 06/9/2016
Used Fuel Disposition
Fault Slip Experiment (2015-2016)
Objectives – Potential for leakage along faults that
intersect a sealing formation (e.g., triggered by gas pressure buildup, or glacial loading, or nearby earthquakes)
– Risk of induced seismicity
Concept – Inject water into packed-off intervals in a
borehole intersecting a fault
– Stepwise increase fluid pressure in different testing sections
– Trigger fault slip
– Monitor fault permeability, stress and strain tensors evolution, and induced seismicity
Used Fuel Disposition
Experimental Design
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Pressure, Flow Rate, and Displacement
4
Fault Opening Pressure (FOP) Packer
3D displacement sensor
Relative displacement of upper anchor to lower anchor (reference)
Used Fuel Disposition
Seismic vs Aseismic Slip
5
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Different Behavior in Different Fault Segments
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Evolution of Fault Permeability
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Used Fuel Disposition
Testing Fault Response to Distant Seismic Events