Utah FORGE Friction-Permeability-Seismicity Laboratory Experiments with Non-Linear Acoustics

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
75 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. https://gdr.openei.org/files/1400/comb_data_Test07.mat
75 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. https://gdr.openei.org/files/1400/comb_data_Test12.mat

Tags

  • acoustics
  • nonlinear-acoustics
  • friction-experiments
  • utah
  • test
  • fault-permeability
  • utah-forge
  • testing
  • failure
  • pressure
  • acoustic-data
  • velocity
  • raw-data
  • geothermal
  • step-test

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