Abstract: To obtain deep seismic reflection data (> 5 000m),many test results in recent years from desert area in JunggarBasin show that shallow well paltern shooting, vibroseis shooting, tortuous spread,sand dune curves, first arrival stackand shotpoint-seismic channel statics are besic means 1o get deep reflection. These methods such as radia1 signal en-hancement, multinomial analogy t0 remove noises are of significant effects on signal-to-noise ratio improvement.while wide-Jine stack has obvious effects on finding out the contacts between the Permian and underlying strata and onsuppressing interbed multiples.

Key words: Signal-to-noise ratio, Supper-multipie stack, Tortuous selected shooting, Statics Sand dune curve, First arIival stack, Remove noise