Patent ID: 8687463

Claim:
Method for processing at least two sets of seismic data corresponding to an underground geological structure, each data set comprising several seismic traces (i, j), said method including the following steps: grouping seismic traces of a first data set by bins (B i ) and by offset classes (O i ); grouping seismic traces of a second data set by bins (B j ) and by offset classes (O i ), wherein an offset class includes a range of offsets; calculating at least one attribute (a(i,j)) characteristic of a similarity between a first trace (i) of the first data set and a second trace (j) of the second data set, in which the second data set is acquired at a time subsequent to acquiring the first data set; and selecting the first and second traces (i, j) when the at least one attribute (a(i,j)) characteristic of similarity between the first trace and the second trace exceeds a threshold value, and using the selected first and second traces to obtain an image of the underground geological structure, in which for a given first trace (i), several attributes (a(i,j)) are calculated corresponding to several second traces (j), said second traces (j) being taken from inside a search area (V) in the second data set, in which the search area (V) extends over several offset classes.