Weight WET velocity update across wavepath with Cosine-Squared function instead of Gaussian function for better Multiscale tomography with our new multirun WET inversion. Use your layered refraction starting modelįor WET inversion. Use Gaussian smoothing as an alternative to uniform smoothing during WET inversion for better resolution.īesides our default Steepest Descent method. Modeling of low-velocity weathering overburden without a gradient, now both for Import SEGY and SEG-2 seismic data files andĬritical refraction of first breaks (intercept-time method) besides Work through our SAGEEP 2010 short course manual Shift picks for all traces of same shot with trigger delay correction.
Image Poisson's ratio via P-wave and S-wave refraction surveys.īidirectional frequency filtering of traces with single-pole or Chebyshev-Butterworth filter.Ĭheck your picks for reciprocal traveltime errors Smooth inversion of borehole surveys with constant-velocity starting model for Layered starting model for WET inversion. Map traveltimes to refractors interactively or semi-automatically.Īutomatically convert mapped refractors to Wavefront refraction methods on 2D WET tomograms. Plot 1.5D refractors obtained with layer-based No need to map traveltimes to refractors. WET Wavepath Eikonal Traveltime inversion (Schuster, 1993). The starting model is then refined with 2D Horizontally averaging DeltatV (Wiechert-Herglotz) methodġD velocity-depth profiles along the seismic line. A smooth minimum-structure and artefact-free 1D starting model isĭetermined automatically directly from the seismic traveltime data by Increases the numerical robustness of the inversion. Refraction, transmission and diffraction (Lecomte, 2000) andīack-project traveltime residuals along wave paths also known asįresnel volumes (Watanabe, 1999) instead of conventional rays. Realistic modeling of first break propagation for P-wave and S-wave surveys. Our Smooth inversion tomographic method is based on physically Velocity variation and other velocity anomalies. Our Rayfract® refraction tomography software allows reliable imaging of subsurface velocity structure including
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