reflection seismics



the different modules for reflection seismics


The following table summarizes the useful (bold necessary) Reflexw modules for the different seismic reflection datatypes



2D data

3D data



2D data-analysis





3D data-interpret.





modelling (simulation/inversion)







Reflexw is designed for the complete processing and interpretation of

2-dimensional seismic reflection data


The program supports all well known seismic dataformats. The full 2D-processing of the shot data starting from setting the geometry, filtering the shot data, performing the velocity analysis up to stacking is included. A 3-D interpretation of the individual 2D-stacked sections is possible.  For a detailed look please follow the links within the text.

The 2D shot data of one line are imported into one single file within the 2D data-analysis module which includes various possibilities of setting the geometries and also all necessary filter and edit functions starting from simple bandpassfilters up to complex Finite Difference poststack migration. The data may be sorted after shots, receiver, common midpoint or common offset. The CMP-menu allows the interactive determination of the velocity distribution using different methods (e.g. semblance analysis, see picture on the left).

Many different 2D-data interpretation tools for the pre- and poststacked data are incorporated, e.g. analysis of the first arrivals, picking single elements or continuous reflectors, ....

Reflexw includes an interpretation tool and some processing routines for 3D-poststack data. The processing is done within the 2D data-analysis module, the interpretation within the 3D data-interpretation module. A 3D-dataset may be constructed either from parallel equidistant 2D-lines or from freely distributed data using a spatial interpolation scheme. The 3D-data may be interpreted within the scroll, windows or 3D-cube mode. A 3-dimensional picking is included.

Borehole data are processed within the 2D data-analysis module and interpreted within the tomography / forward modelling module which includes a tomographic inversion of transmission traveltime data.

In addition a simulation based on Finite Differences is included within the tomography / forward modelling module which allows to generate synthetic seismograms for complex models and different geometries enabling you for example to optimize your survey design in front of a measurement.

  Sandmeier Scientific Software 2006