The Neogene Shawan lithologic oil reservoir in Chunguang Oil Field is characterized by shallow burial, thin thickness and poor digenesis, which results in an unsatisfied effect of exploration. A series of good application results have been achieved in this field, which including the flattening slice technique that determines favorable reservoir belts, the frequency division technique that graves, the "bright-like spot" feature that discriminates sand bodies and the 2-step inversion method of pseudo-acoustic wave adding electrical resistivity that identifies fluids. The 2-step inversion method can detect out oil-bearing or water-bearing sand bodies without bright spots. For the exploration of favorable beach reservoirs without bright-like spots, effective traps can be found with suitable fluid detection technology in spite of the customary method of applying "bright-like spot" feature.