AMO (Azimuth Moveout)
AMO – Azimuth Moveout
Arcis Seismic Solutions (Arcis) offers Azimuth Moveout (AMO), a state-of-the-art wave equation propagation algorithm for regularizing and interpolating poorly sampled 3D data. The concept of AMO was developed at Stanford University by Biondo Biondi, one of the principals of 3DGEO. The AMO operator, which rotates the azimuth and modifies the offset of 3D pre stack data, is analytically derived by cascading the forward and inverse 3D DMO operators. AMO is not a single trace to single trace transformation, but rather a partial-migration operator that moves events across midpoints according to their dip.
AMO can be used to interpolate irregularly sampled 3D data by filling acquisition gaps and balancing input data. AMO carries the correct kinematic, phase, and amplitude transformation because it is derived from the wave equation. This wave-equation foundation sets AMO apart from more conventional data interpolation approaches which are based on signal coherency.
Fold map associated with original marine program consisting of a sparse set of 2D lines
Fold map after using AMO to create a pseudo 3D geometry
Timeslice from original (uninterpolated) 2D data set
Timeslice from pseudo-3D (i.e., after interpolation via AMO)