Wave separation procedure for borehole seismics with walk away acquisitions

It is of the type consisting of generating waves in a medium from several positions of a transmitter, to receive said waves on at least three sensors along axes V, H1, H2, to constitute collections of traces C common issuer and is characterized in that it carries out, from the collection of traces C, collections of residual traces C and C signal, is selected in the collection of residual traces C a pivot trace (10), a line (11) of variable slope p is passed through each sampled point of the pivot trace, and the amplitudes of the seismic events located at the intersections of the traces with said line are summed along said line (II). on the right, the amplitude sums are reported in a domain (τ, p), a synthetic seismogram is made from the domain (τ, p) and iterations are carried out until the synthetic seismogram is acceptable with respect to the data. from the collection of residual C traces.