Coherent AVO Picking

An erroneous amplitude picking can severely degrade AVO (Amplitude Versus Offset) analysis results and may lead to incorrect drilling decisions. A major cause of errors in AVO picking is the presence of coherent and incoherent noise that interfere with the target reflection. AVO picking is therefore a crucial step in AVO analysis and care must be taken in the rejection of coherent noise and in the exploitation of the available range of incidente angles. The joint estimation of AVO and kinematic parameters (JAK: Joint Amplitude and Kinematic) (Grion, Mazzotti, Spagnolini, 1998) is an AVO picking technique that meets these requirements.