Abstract: The method of predicting formation pressure using sonie logging data is presented. The self potential and micro electric logs are used to calibrate the shale interval in F1I Well of Dongying sag. From the pressure profile dist ribution plot and top interface pressure dis-(tribation plot of Es3, Boxing region is of high pressure in north and low pressure in south. Two high pressure areas are located in Chunhua uplift and Dahulu subsag compared with two low pressure areas in Qingcheng swell and south slope. It is believed that cerlain correlations seem to have between the pressure distributions and hydrocarbon migration and distribution. That is, oil and gas always migrate from high pressure area toward low pressure area. So pressure is one of the most important powers for petroleum mi gration in this region.

Key words: Dongying sag, Boxing, fonnation pressure, interval transit time