Linear and First Arrival Event Attenuation Using Optimized RTT Method

In most of seismic data acquisition, shallow reflection data will be masked with refraction and first arrival events and observation of this event is not usually easy. Radial trace transform is a simple transform for mapping x-t gathered data into apparent velocity and travel time domain. The apparent frequency of refraction and first arrival events will be changed completely in RT domain. With knowledge of this changes and the application of frequency filters in RT domain, these events can be attenuated. In this paper the result obtained from filtered gathered data acquired from oil filed in x-t domain and RT domain has been compared. The results showed that the RT filters is much better affecting those events with respect to x-t filters.