LD-SeisFast

Onsite Seismic Data Processing Software

Software Overview
LD-SeisFast is a highly efficient onsite seismic data processing software. It includes conventional processing function modules, such as data reformatting, geometry definition & QC, bad shots editing, refraction and reflection statics, noise attenuation, amplitude recovery, deconvolution, velocity analysis and stack etc. It can be used to quickly and effectively analyze the method used in the field data acquisition and to monitor the data quality.

Software Function

  • Quality control of data acquisition: Monitor maps, such as R-S location, R-S elevation distribution, offset distribution, azimuth and fold, can be displayed in the attribute window.
  • Spectrum analysis and frequency scanning:Spectrum analysis can be done along the trace or within the time window. It has also the function of frequency scanning which can be used to investigate the range of frequency-bandwidth distribution on primaries and/or noises.
  • Noise analysis and removal:Used to investigate the noises, such as ground roll, linear noise, multiples etc. The noises can then be removed by 3D dip filter, wavefield separation multiples attenuation, etc.
  • Amplitude decay analysis and compensation: Amplitude difference between shots can be analyzed and amplitude compensation can be done to balance the energy in shallow and deep part.
  • Refraction statics: Automatic first arrival picking, batch anomaly editing, refraction statics computing can be performed to obtain the refraction statics value.
  • Surface consistent deconvolution: Spatially varied multi-window design be used to obtain more reasonable operator,which can effectively improve the data resolution in time domain.
  • Residual reflection statics: Residual statics can further be solved to improve the quality of stack section.
  • Fine velocity analysis and variable-velocity scanning: More suitable for the low S/N data

     
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