Have you ever plotted a nav file and found that some of the lines appear to double back on themselves?
That happens because some contractors rarely plot the data to check whether it makes sense.
Canesis does and will provide the QC plot files on request.
As with most geoscience contractors, Canesis is in the business of processing maps because our seismic and well datasets need to be viewed in a spatial context. However, mapping for us is not an afterthought assigned to a junior staff member. We approach our navigational data with the same attitude to quality as we do our other services.
Many problems with seismic navigation involve corruption of the data in processing following digitisation of base maps. All Canesis digitised maps are georeferenced again in the QC process and the final output data is superimposed on the map image. This checks the original georeferencing, the standard of the digitising and the integrity of the formatted output file. It ensures that any discrepancies are resolved before the data reaches the hands of the client.