Abstract: Based on 600 samples data from 25 wells in western Junggar basin, this paper simulated their subsurface state, measured P- and S-wave velocity of rock saturated with water and oil, found the factors affected velocities and the regularity of P- and S-wave change.The log curve calibration, oil/gas prediction and oil-gas-water detection were made by using these velocity data and induced information, a new method was offered for oil exploration.

Key words: Simulation test, Pressure, Porosity, Modulus of elasticity, Model