Abstract: Shengke-1 Well is a key well for scientific probe of Sinopec, and its proper implementation or not is related to the understanding of deep reservoirs and prospecting courses in Dongying sag. This well is characterized by deep drilling horizon and varied formation lithology, so its predrilling prediction of abnormal pressure is the most significant. This paper presents the conceptual model for the formation pressure in this area based on the seismic-geology researched results. By analysis of the seismic velocity vs. the formation pressure, the seismic velocity is effectively picked up, and overlying formaiton pressure is properly estimated. The predicted result is well comparable to the testing result.

Key words: Dongying sag, formation pressure, model, seismic velocity, pressure prediction