Yandex Terras report "Imaging driven modeling" at the 1st NIS GeoConference (Novel Industry & Science)

Within the scientific-technical conference The 1st NIS GeoConference (Novel Industry & Science) we are pleased to invite you to attend a report of the Chief Geophysicist of Yandex Terra (Seismotech, Ltd.), Silaenkov Oleg,

"Imaging driven modeling".

The depth image, which fits to the seismic time field and all the additional geological information, is the final result of modern seismic data processing. In order to get such a result, from the very beginning of the processing chart flow we should look at the processing as at the process of the inverse task solving.

As many processing procedures (static correction multiple removal, migration, etc.) are based on the depth-velocity model, we consider depth-velocity model is a key step of processing. Thus, the accuracy of final migrated images significantly depends on the depth-velocity model that was used for migration. Such approach required a special software solution, such as our development, Prime software system.

The objective of Prime is mostly oriented to the depth processing rather than time processing. It allows using a lot of effective algorithms, which are applicable only to processing in depth domain and depth-velocity model enhancement. For example, approximation of heterogeneous upper part by layer, wave field transformation, etc.

Processing, driven by the depth-velocity model building and migration, has to include multiple and simultaneous direct and inverse tasks solution and interactive subsystems for the results analysis.

The better understanding of the processing precision and accuracy has been achieved by the usage of a special technology of depth-velocity model building.

More find in the text of thesis of "Imaging driven modeling" report