Method and system for determining migration data using cross-spread gathers and parallel processing

A system, comprising:

• a plurality of parallel processing groups, wherein a respective parallel processing group comprises a plurality of parallel processing nodes;
• and
• a seismic interpreter comprising a computer processor, wherein the seismic interpreter is coupled to the plurality of parallel processing groups, the seismic interpreter comprising functionality for:
• obtaining a plurality of cross-spread gathers regarding a geological region of interest, wherein the plurality of cross-spread gathers are based on first seismic data corresponding to a seismic survey for the geological region of interest;
• determining traveltime table data based on the plurality of cross-spread gathers;
• transmitting the plurality of cross-spread gathers to the plurality of parallel processing groups, wherein a respective cross-spread gather among the plurality of cross-spread gathers is transmitted to a respective parallel processing group among the plurality of parallel processing groups;
• determining, by the plurality of parallel processing nodes in the respective parallel processing group, a first subset of a migrated dataset using the respective cross-spread gather, a subset of the traveltime table data, a velocity model, and a migration function;
• and
• generating, based on a plurality of subsets of the migrated dataset comprising the first subset, a seismic image of the geological region of interest.