FIELD: physics.
SUBSTANCE: according to the disclosed solution, common reflection angle or common azimuth gathers or gathers including both common reflection angles and common azimuth angles are produced as data are migrated. The method comprises using space-domain reverse time migration or wave equation migration. The method also includes computing reflection angle or azimuth angle or both, as the seismic data are migrated, from available local particle velocity and pressure or stress tensor information. Seismic images can then be stored in the appropriate angle bins, from which common reflection angle or azimuth data volumes can be assembled.
EFFECT: high accuracy of obtained data.
22 cl, 6 dwg
