Claritas / Overview / Features / Display Tools

GLOBE Claritas Display Tools (XVIEW)

XVIEW is the process module which is used in seismic jobs to display seismic data on an X Windows screen. Its powerful image-comparison features, and wide range of zoom options make it a particular strength of the Claritas package.

XVIEW

The main use of XVIEW is to display seismic data at some point in the processing flow. Various display methods may be used (variable area, wiggle, and variable density), and the colour-scheme is fully customisable.

When used in conjunction with the REPEAT processor, XVIEW can store and superimpose the images resulting from different processing flows. These images may be animated in a movie-like fashion, and the difference between two panels can also be displayed. This makes it very easy to set up a test panel to determine the optimum value of some processing parameter, or to compare differently processed versions of the same seismic profile. This is the ideal method for quality control at all stages in the processing flow, and especially to check the results of statics or velocity analysis.

The overlapping image capability is also used for 3-D seismic volumes, allowing ranges of in-lines (and multiple versions of a selection of in-lines) to be viewed and compared at a time. For 3-D data-sets, XVIEW also includes a time-slice display.

A suite of zoom windows is also available, which may be taken from any part of the main XVIEW window, and can display:

  • XT Seismic data (i.e. to enlarge a portion of the main image)
  • FK F-K spectra
  • FX Amplitude spectra
  • FT Frequency characteristics (F-T spectra)
  • Tp Tau-P transform by XT and FK methods
  • PR Parabolic Radon transform zoom
  • ACF Autocorrelation functions
  • AT Amplitude decay curve
  • IA Instantaneous amplitude
  • IF Instantaneous frequency
  • IP Instantaneous phase
  • AH Amplitude histogram
  • Txt Text output (the actual header and trace values)

Some of these zoom windows (XT,FK,FX,Tp and PR) can also be edited using a suite of mute options, with the mute functions being saved to files for use in subsequent processing flows. These transform zoom windows can also be inverted, which creates a second-level XVIEW window displaying the original (XT) data, the inverted transform in X-T, and the difference between original and filtered data.

XVIEW can be used to digitise geological horizons, the output of which can be used for colouring horizons on hardcopy plots, to flatten the seismic data on a specified event, and for AVO or horizon-consistent NMO analyses.