Abstract: Ping-hu oil-gas field is the first one of the oil-gas fields found and developed in east China sea area. As a result of the geological condition complexity and a little wells and very strong nonconfirmation of geological parameter of east China sea area,the geological base of the ODP project which completed in 1992 need to be put into effect. Therefor, at the same time of drilling, the geological tracking research was developed. It can correct the error of acquaintanceship to ODP project in time and insure the high and steady yield of the field. Based on the geological and development character of the reservoir at present,the paper analyzed the important point of the ODP project and its non-confirmation .Inaddition, the key technology used in tracking research and the adjustment about ODP project using the technology research progeny were introduced. The effect of the tracking research in the high and steady yield of the field was analyzed from the impact produced by the adjusted project.The paper possesses the use for reference to the same type of reservoir.

Key words: complex reservoir, adjust, development, ODP