Description
Laboratory experimental data on saw-cut interface of Westerly Granite and Utah Forge granitoid rocks. Experiments include velocity-stepping and fluid pressure stepping experiments. Mechanical data from 3 ISCO pumps connected to a Temco pressure vessel measure axial, confining and fault: fluid pressure (kPa), fluid flow rate (mL/min) and volume remaining in pump (mL). Non-linear acoustic data acquired via Verasonics systems connected to PZTs inside the pressure vessel give the timeshift, amplitude and RMS amplitude of the passing P-wave.
Resources
| Name | Format | Description | Link |
|---|---|---|---|
| Velocity Step Test Data.mat | MAT | Velocity step test on 30 degree saw-cut Westerly Granite at room temperature. Data: Pump A is upstream fluid, Pump B is confining fluid, Pump C is axial fluid. P is pump pressure, V is remaining volume in pump, Q is fluid flow rate from pump. d_axial and d_shear are axial and shear displacement, SigmaN is normal stress, Pf is fluid pressure, tau is shear stress (all in MPa), mu is friction coefficient. vera_timeshift, vera_amp and vera_RMS are the non-linear acoustic data, timeshift (microseconds), amplitude and RMS amplitude respectively. | Open resource |
| Pressure Step Test Data.mat | MAT | Pressure stepping test on 30 degrees saw-cut Westerly Granite bare surface, roughened with Utah FORGE granitoid powder. Data: Pump A is upstream fluid, Pump B is confining fluid, Pump C is axial fluid. Downstream fluid pressure is open to atmosphere. P is pump pressure, V is remaining volume in pump, Q is fluid flow rate from pump. d_axial and d_shear are axial and shear displacement, SigmaN is normal stress, Pf is fluid pressure, tau is shear stress (all in MPa), mu is friction coefficient. vera_timeshift, vera_amp and vera_RMS are the non-linear acoustic data, timeshift (microseconds), amplitude and RMS amplitude respectively. | Open resource |