Abstract:Seismic reservoir prediction technology is the main technical means in reservoir description. Seismic data and well data are the basis for reservoir prediction. Taking the reservoir prediction in the Liaohe beach area as an example, this paper summarizes the existing problems and the methods of coping in the process of prediction. (1) The resolution of the middle and deep seismic data in the Middle East of the beach is not high, and its strong wave impedance is a comprehensive reflection of the multi-layered sand. Through the forward and inversion simulation analysis of the sand-shale interbed model in the study area, the conclusion that the wave impedance has poor recognition ability for the thin sand layer is obtained, and the high-resolution geostatistical inversion technique can effectively predict the thin sand. Floor. (2) In the prediction process of glutenite body in Xianhe area, based on the comparative analysis of seismic reflection characteristics and lithology combination characteristics, the pre-drilling prediction and the post-drilling forward model are compared and verified. The results show that the seismic data of this area is poorly preserved. Well constrained inversion techniques can reduce the impact of marginality on prediction. (3) There are similar seismic emission characteristics in the eastern part of the beach, but they represent different lithological combinations and have different geological meanings. The use of seismic reflection characteristics for reservoir prediction has multiple solutions. In order to reduce the multi-solution of prediction, the geological meaning of emission characteristics of different regions can be clarified through the combination of well and earthquake. (4) In the reservoir prediction of no-well or low-well area in Tanhai, the inversion technique with low logging constraint can be selected. When the low-frequency information is compensated, the velocity spectrum data can be used to improve the reliability of prediction.