A New Way For Stacking of Reflected Converted Waves.

Garza-Rocha, Daniel (U.A.N.L., Facultad de Ciencias de la Tierra) | Rabbel, Wolfgang (IFG Christian Albrechts Universität zu Kiel, Germany)

OnePetro 

ABSTRACT

A new way for stacking of P-SV reflection seismic data is the so called common converting element (CCE) Method. For the application of the CCE-method it is not necessary to have a previous knowledge of the subsurface structures. The CCE-method is based on two approximations, a special source-receiver distribution and a travel time correction called oblique spherical correction (OSC). The CCE-method includes the production of different types of time sections which are used to analyze the overburden structures. The so called CCE single trace analysis in different models has been carried out to prove the stability of the CCE-method. This analysis gives information about the distribution of the coeherency between seismic traces as a function of the CCE stacking parameters a, r and b, a determines the special CCE distribution of source-receiver pairs r is the radius of curvature of the combined fictitious wavefront at each central point.