Simultaneous common-offset migration

A non-transitory computer readable medium storing instructions executable by a computer processor, the instructions comprising functionality for:

• determining a plurality of common-offset sections from an observed seismic dataset;
• determining, from each common-offset section, a stochastically migrated common-offset section;
• forming a plurality of stochastic image gathers based, at least in part, on the plurality of stochastically migrated common-offset sections;
• forming a seismic image based at least in part, on stacking each of the plurality of stochastically migrated common-offset sections;
• and
• identifying a target within a subterranean region of interest with a likelihood of containing hydrocarbons based, at least in part, on the seismic image.

A system, comprising:

• a seismic acquisition system configured to acquire an observed seismic dataset;
• and
• a seismic processor configured to:
• receive the observed seismic dataset for a subterranean region of interest from the seismic acquisition system;
• determine a plurality of common-offset sections from the observed seismic dataset;
• determine, from each common-offset section, a stochastically migrated common-offset section;
• form a plurality of stochastic image gathers based, at least in part, on the plurality of stochastically migrated common-offset sections;
• form the seismic image based at least in part, on stacking each of the plurality of stochastically migrated common-offset sections;
• and
• identify a target within the subterranean region of interest with a likelihood of containing hydrocarbons based, at least in part, on the seismic image.