Without digital data

how to fully make use of the old optical analogue seismic sections and films and to renewedly constrast

reinterpret

especially to reprocess and restore them (including those on which have been manually interpreted)

how to solve the problem that the hard copied seismic sections can only be read but not be further reprocessed

an effective approach has been put forward in this paper. Which makes it possible to reprocess and reinterpret old seismic sections and films. According to the graphical image processing technology

the seismic waveforms on the rasterized images scanned from paper seismic sections can be refined

identified and extracted and be converted into digital data

then be reformatted as the standard SEG-Y format

which can be used for being further processed and interpreted. Analyzing the results of applying this approach to old paper seismic sections

we realize that in the digitalized seismic sections their original characteristics can be effectively retrieved. Therefore this approach is feasible to reconstruct old paper seismic sections.