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Weathering Statics

Near surface velocity modeling and correcting for these near surface velocity variations is one of the first steps in seismic data processing. Refraction analysis uses first arrival times of refracted seismic energy to compute near surface velocities and layer thicknesses. Using a combination of proprietary automatic and manual first break picking algorithms we first determine and QC the first break times.

The first break times are used in our WXS  Read more...


PSTM 3D

We use our proprietary pre-stack Kirchhoff time migration algorithm, PSTM3D, to image both PP and PS data for both 2D and 3D datasets. The flexibility of the Kirchhoff algorithm in terms of ordering and density of input and output makes it ideal for the migration of land seismic data. Commonly we migrate COV ordered data so that azimuthal analysis, such as VVAZ, can be carried out with data in the migrated position. As well, we can migrate to fixed offset bins o  Read more...


SPLITTING ANALYSIS

Historically, shear-wave splitting analysis of PS data has focussed on the detection of fracturing in the subsurface, typically assumed to be represented as a horizontal transverse isotropy (HTI) medium  Read more...


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