Improvement of Deep Seismic Data Processing in Zhouk-ou Depression

Exploration targets are deep and structures are complex in Zhoukou depressioa For the low reflectance, low signal- noise ratio and existence of fault plane waves, a seismic processing scheme, which takes improving signal - noise ratio and increasing accuracy of migration imaging, is proposed based on large quantity of analysis and experiments. Its application has effectively improved the signal - noise ratio and increased the accuracy of migration imaging of the key targets such as the Lower Tertiary, Cretaceous, Permian and Carboniferous. On the processed profile, the main targets have high signaln-oise ratio, good reflectance continuity, clear reflectance wave group features, clear faults and reliable structural shapes, thus structural interpretation is easier.