Near vertical surfaces of sub-seismic faults, steep salt intrusion flanks, and fuzzy boundaries of fracture swarms relate to geologic objects that are difficult to image and characterize by conventional processing of seismic data. To solve the problem, a specific kind of seismic migration has been developed recently to migrate duplex waves, a kind of two-bounce multiple reflections with one bounce off near horizontal reflector and another bounce off near vertical boundary. We propose a new approach to image near vertical boundaries. The approach is based on well known peculiarity of corner reflectors to reflect incident rays back along the path of the incident ray irrespective of the angle of incidence. In contrast to duplex wave migration, the approach can be implemented using non-specific software, e.g., common reflection angle migration or even conventional Kirchhoff migration.

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