Abstract: Dongpu sag is one of the few sags in Bohai Bay Basin that are abundant with both oil and gas. Although it has been explored and developed for more than 30 years, there is great potential in the sag. In order to realize sustainable development of accurate exploration in the sag, suitable technical strategies should be adopted on the basis of different characteristics of structural belts. It is important to seek faulted zones in western clinoform zone so as to find some new oil-bearing fault blocks continually. To join the multilayer oil-bearing fault blocks together, attention should be paid to fill the blank of reserves in northern central uplift belt. It is essential to focus on the modification of structural details on the basis of high accuracy seismic data, so that the target area can be evaluated accurately in southern central uplift belt. It is effective to secure sustainable development of accurate exploration by developing technologies for high accuracy seismic exploration and multi-target directional well drilling that are suitable to accurate exploration in the sag, implementing project management and integrated management mechanism of exploration and development that combines exploration departments with institutes and oil producing factories together.

Key words: Dongpu sag, resource potential, high-precision seismic exploration, integration