Abstract:There are many differences in seismic data between the depth domain and the time domain,and interpretation methods for these data should be also different.With the tools provided by GeoEast interpretation sub-system,we discuss methods and process for depth-domain seismic data interpretation.The direct calibration of synthetic seismogram in the depth domain is used to clarify the correspondence between well and surface seismic.The structure map corrections are realized with the field building of well and surface seismic to enhance the structure interpretation.Reservoir prediction is achieved with geometric and dynamic attributes,so reservoir spatial locations are more accurate.Nonlinear BP neural network inversion can improve reservoir prediction accuracy.Wave number-like attributes can be used for hydrocarbon detection in the case of small velocity changes.Depth-domain seismic data interpretation in the Jizhong area is achieved with the mentioned approaches,and interpreted results meet the needs of the future exploration in the area.
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