The Sdudy Of Tectonic Feature And Seismic Interpretation On Western Slope Of Damintun Sag

Damintun Sag in Liaohe basin is a typical small terrestrial faulted sag, and is well known for the feature of high waxy, its slop is significant place of oil and gas accumulation. Guided by theories, method of modern seismology,tectonic geology ,The West Slop of Damintun Sag is the target. On basis of logging^ drilling and seismic data having been researched detailedly, synthetic seismogram of about 60 wells have been made, tops calibrating are done ,applied 3D visualization,process and interpretation of coherence, horizon tracking and tectonics interpretation have been carried out on the 260km~2 3D seismic data . Four structure maps and ruprure system of ES3~2,ES3~3,ES3~4,ES4 have been maded up.Fault development characteristics and tectonic feature have been analyzed and described completely. And the evolvement of tectonics is researched using horizon-flatten, four stages have been classified.On the basis of analysis and comparison of structures of slop in others faulted basin in China, The West Slop of Damintun Sag is complex Slop.and a new categorization of slop have been brought forward.Finally the trap types and distribution of West Slop have been predicted.