Intermediate-Scale Hydraulic Fracture and Stimulation Field Lab in a Deep Mine for Investigation of Fracturing and Induced Seismicity
Permeability (k) and Induced Seismicity Management for Energy Technologies (kISMET)
- Investigate relationship between fractures (natural and induced) and stress field, rock fabric, and stimulation approach to inform EGS stimulation.
- Investigate microseismicity arising from fracturing as analog for deep basement rock induced seismicity underlying deep injection sites.
- Establish SubTER field observatory.
- Drill and core five boreholes at SURF for fracture stimulation and monitoring
- Characterize the site
- Lithology, rock fabric, structure, hydrology
- Stress state (local and mine-wide)
- Existing fractures (map orientations, size, aperture, etc.)
- Instrument the site and surroundings to monitor fracturing, seismic response, and to characterize and image the resulting fracture(s),
- Carry out hydraulic fracturing in the borehole for stress measurement and for stimulating fractures
- Analyze seismic, ERT, and induced seismicity data to characterize fracture(s)