Taking Saertu oil layer of Lamadian oilfield as an example

this paper discusses the application of seismic attribution technique and curve reconstruction and inversion technique.Seismic attribution technique is sui-table for describing characteristics of reservoirs such as Sa I layer with sandstone interbedding in mudstone

especially the main channel sandbody in area with sparse well control.While

curve reconstruction and inversion technique is suitable for highly accurate prediction of inter-well sandbody

thus is critical for tapping remaining oil in oilfield with high water cut. Based on sedimentary facies correction through log/seismic integration

5 models were built

including channel side accretion

channel continuity

channel size

channel combination and channel timing.Log differences and elevation changes are integrated with inversion slice to characterize the vertical evolution of channel sands and finally to determine the boundary of a single channel sandbody.The complex superimposition relationship between early channel sandbody and late channel sandbody determine the complicated spatial distribution of remaining oil.These understandingsprovide a solid basis for extracting the remaining oil and improving flood pattern.