2-D CONTINUATION OPERATORS AND THEIR APPLICATIONS

Continuation to zero offset [better known as dip moveout (DMO)] is a s tandard tool for seismic data processing, In this paper, the concept o f DMO is extended by introducing a set of operators: the continuation operators. These operators, which are implemented in integral form wit h a defined amplitude distribution, perform the mapping between common shot or common offset gathers for a given velocity model. The applica tion of the shot continuation operator for dip-independent velocity an alysis allows a direct implementation in the acquisition domain by exp loiting the comparison between real data and data continued in the sho t domain. Shot and offset continuation allow the restoration of missin g shot or missing offset by using a velocity model provided by common shot velocity analysis or another dip-independent velocity analysis me thod.