For horizontal beds, the detection of lateral location depends upon lateral change in the reflection coefficient. The moving of received data to an appropriate lateral location is thus an additional requirement for full interpretation. Top left is three point scatterers on two reflectors. Top right is the expected Snell wave. Bottom left is the Snell wave after linear moveout.
Bottom right is after transform to full interpretation coordinates.
At last a , b , and c are located where A , B , and C began. Point A is directly above point B . The path of the wave reflected at B leads directly to C and thence to g 1 . Subsequent frames show the diffraction hyperbolas associated with these three points. Notice that the pseudo-Snell waves reflecting from the flat layers step out at a rate p .