Abstract: The 2-D initial seismic data show that Abei, Shunbei and Caohu areas in Tarim basin are characterized by deep buried target zones, complex surface and subsurface geologic structures, problems in static correction, developed interference wave and low signal-tonoise ratio. This paper uses the techniques such as composite static correction of partial offset distance and dominant frequency, multi-domain noise elimination, accurate velocity analysis and deep superimposed imaging to better deal with the problem appeared in past static correction and low signal-to-noise ratio, improving the accuracy of the deep superimposed imaging. Preliminary seismic interpretation and geologic analysis indicate that the processed profile is in good continuity of events, high signal-to-noise ratio, proper return, clear structural attitude and larger scale, generally revealing the subsurface structures in the profile-studied area, including some structures or structural shows that never recognized before. This study enriches knowledge about the structural characteristics and structural evolution in this area.

Key words: Tarim basin, seismic data, structure, static correction, signal-to-noise ratio, imaging