Abstract: Southern margin of Junggar basin is characterized by abundant hydrocarbon resources and multiple traps,with low degree of prospecting and big difficulty for exploration. It is the most realistic strategic succession area for hydrocarbon prospecting in the basin. According to geologic and geomorphic features, to find out subsurface structural configuration should mainly depend on mountain seismic techniques. Hence, it is necessary to optimize induced polarization conditions, adopt available 2D result for developing initial model and observation system suitable to the complex subsurface situations; to carry out static correction near the mountain surface, pay attention to veracity in seismic reflection imaging; and to reasonably dispose mountain 2D and 3D seismic, an old idea of “cannot apply 3D unless yielding crude flow” must be cancelled.

Key words: Junggar basin, Tianshan Mountain, piedmont depression, oil and gas exploration, mountain seismic prospecting, seismic prospecting