AUTOMATIC SEISMIC PATTERN RECOGNITION METHOD

PCT No. PCT/FR96/01396 Sec. 371 Date Aug. 4, 1997 Sec. 102(e) Date Aug. 4, 1997 PCT Filed Sep. 11, 1996 PCT Pub. No. WO97/11392 PCT Pub. Date Mar. 27, 1997An automatic seismic pattern recognition method includes the steps of: determining a given number of seismic patterns to be recognized; providing a set of seismic trace portions for the region; defining a pattern recognition parameter common to all the trace portions, and determining the value of the parameters for each of the traces portions of the set. The method also includes the steps of: selecting trace portions of the set; selecting a one-dimensional neural network containing as many cells as there are patterns to be recognized where each cell is assigned a value of the recognition parameter; and submitting the neural network to a learning process with the selected trace portions so that at the end of the process each cell matches a pattern to be recognized and so that the patterns are progressively ordered. The method also includes the steps of: presenting each trace portion of the set to be processed to the classified and ordered neural network and attributing to each trace portion presented to the network the number of the cell closest to it.