Direct migration of simultaneous-source survey data

A method for generating an image of a subsurface formation comprising:

• obtaining simultaneous-source survey data for the subsurface formation;
• obtaining an earth model of the subsurface formation;
• obtaining a first velocity model of the subsurface formation;
• obtaining a second velocity model of the subsurface formation;
• generating synthetic survey data with at least one of the earth model, the first velocity model, and the second velocity model;
• directly migrating the simultaneous-source survey data with the first velocity model to generate migrated simultaneous-source survey data with crosstalk artifacts;
• migrating the synthetic survey data with the second velocity model to generate migrated synthetic survey data with synthesized crosstalk artifacts;
• subtracting the migrated synthetic survey data from the migrated simultaneous-source survey data;
• and
• generating an image of the subsurface based at least in part upon the subtraction of the migrated synthetic survey data from the migrated simultaneous-source survey data.