Stress effects on wave velocities of rocks: Contribution of crack closure, squirt flow and acoustoelasticity

These data are the P- and S-wave waveform data obtained by Ba et al. (2019-2022) through ultrasonic experimental measurements on rock samples at different pressures.

In the package of data, each folder of Sample A1, Sample A2, Sample A3, Sample A4, Sample A5, Sample A6, Sample B1, Sample B2, Sample B3, Sample B4, Sample B5, and Sample B6 indicates sample number. For each sample with different pore fluids, waveforms measured at different pressures are saved as different TXT files. For the title of each TXT file, it includes the sample number, saturation condition, temperature, differential pressure value and wave type. For instance, “Sample A1_fullwater_20℃_15MPa_Pwave” denotes that P-wave waveform of sample A1 with the full water saturation is measured at 20℃ and the differential pressure of 15MPa, while “Sample B2_dry_130℃_20MPa_Swave” denotes that S-wave waveform of dry sample B2 is measured at 130℃ and the differential pressure of 20 MPa. The package also includes the TXT file of sample lengths.

In the TXT files of Samples A1-A6, the columns give wave amplitudes. The time interval is 0.05 μs. The travel times of P-wave and S-wave in the measured system are 8.4 μs and 14.45 μs, respectively. In the TXT files of Samples B1-B6, the first column gives time and the second column gives wave amplitude.