Study And Application Of Reservoir Prediction Technique From Seismic Data In The Bz19-21 Area

In recent years,with the rapid developments of seismic technology,the explorationists have attached much importance to the plenty of useful information which contained in the seismic data. In the meantime the increasing improvement of the level of large area 3D seismic data acquisition,processing will make the seismic resolution to be getting higher and higher. Apparently,it will benefit extracting seismic attributes so as to predicate the distribution of the most favorable reservoir zones and achieve the aim of guiding the drilling eventually.With the neotectonic movement theory's efforts,several large and middle fluvial facies sandstones oilfields have been discovered in Neogene of Bohai sea area. These oilfields are mainly fluvial facies sandstones in Neogene. Since faults developed well and the sandstones distributed complexly,the lateral change of the reservoir is fast,therefore how to describing the reservoir distribution effectively is the key to the oilfields evaluation. Along with the increasing exploration in Bohai bay and effective implement of project of cnooc's oil and gas exploration and development,exploration of large and middle Bohai Bay basin will be paid more and more attention in the near future. But,some ambiguous understandings of development extent of reservoirs are the key factor to deal with the problems of exploration of Bohai Bay basin.In this paper,I will apply reservoir prediction technique to bz19-21 area in the western of Bohai bay,aiming at exploration of different reservoirs varies. Through summarizing comprehensive this technique,it guides us to do reservoir research on comparable structure. The reservoir technique used here include reservoir inverse,seismic attribution,multiple attribution clustering analyses and spectral decomposition.