G - Physics – 01 – V
Patent
G - Physics
01
V
G01V 1/40 (2006.01) G01V 1/36 (2006.01) G01V 1/37 (2006.01) G01V 1/42 (2006.01)
Patent
CA 2114994
Process for preparing vertical seismic profiles (VSP) of the underground interested by a bore drilling, by using, as the seismic source, the vibrations generated by the drilling bit, by carrying out a cross-correlation between the bit signal and the signals collected by seismic geophone lines, in which the bit signal is processed by arranging a plurality of several types of detectors on the bore drilling facility and thus recording a plurality of traces: in them the signal/noise components have different characteristics and can be separated by means of the introduction of filter functions by operating on their Fourier Transforms or on the basis of their statistic distribution.
Angeleri Giampiero
Persoglia Sergio
Poletto Flavio
Rocca Fabio
Agip S.p.a.
Osservatorio Geofisico Sperimentale
Robic
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