Reservoir prediction by amplitude attributes

Focused on a lithologic trap and a stratigraphic trap in Raoyang Sag, the paper demonstrates the relationship between seismic amplitude and reflection coefficient. Seismic amplitude is connected with reflection coefficient, especially with the reflection coefficient combination on thin beds. Strong amplitudes do not necessarily correspond tosand body developed areas. Different amplitude attributes are extracted from two targets by different analytical methods. In order to find out inter-bedded sand bodies in the area, we analyze seismic data combined with well data, and reflection coefficient combination. Then we extract relative amplitude attributes. In marine deposition area, amplitude attributes can be extracted only based on reflection coefficient and seismic amplitude. Applications demonstrate good results obtained by this method.