Pre Salt Layer Wikipedia

Seismic migration - Wikipedia.

Seismic migration is the process by which seismic events are geometrically re-located in either space or time to the location the event occurred in the subsurface rather than the location that it was recorded at the surface, thereby creating a more accurate image of the subsurface.This process is necessary to overcome the limitations of geophysical methods imposed by areas of ....!&&p=f4b24ceb5245e178JmltdHM9MTY2MDcxMjg1MSZpZ3VpZD1iNDU4MzMyZC01ZjI4LTQzOGItYmEzOS0yODQ5MzEyZDY4NzkmaW5zaWQ9NTA5NQ&ptn=3&hsh=3&fclid=7f032587-1dea-11ed-875b-c91b2e504822&u=a1aHR0cHM6Ly9lbi53aWtpcGVkaWEub3JnL3dpa2kvU2Vpc21pY19taWdyYXRpb24&ntb=1.