Plural depth seismic de-ghosting method and system
AssigneeCgg Services SAS
InventorJulien COTTON
Life of this patent
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Abstract
A method for de-ghosting seismic data includes receiving seismic data corresponding to plural depth sources or plural depth receivers located at a first depth and a second depth below a geophysical surface, wherein the second depth is below the first depth, where the plural depth sources or plural depth receivers comprise a first seismic receiver located at the first depth and a second seismic receiver located at the second depth, or, a first seismic source located at the first depth and a second seismic source located at the second depth. The method also includes aligning primary reflections within the seismic data to provide improved seismic data. A corresponding system is also disclosed herein.
Claims20
A method for de-ghosting seismic data, the method comprising:
- receiving seismic data corresponding to plural depth sources or plural depth receivers located at a first depth and a second depth below a geophysical surface, wherein the second depth is below the first depth;
- the plural depth sources or plural depth receivers comprising a first seismic receiver located at the first depth and a second seismic receiver located at the second depth, or, a first seismic source located at the first depth and a second seismic source located at the second depth;
- and
- aligning primary reflections within the seismic data to provide improved seismic data.
A system for de-ghosting seismic data, the system comprising:
- plural depth sources or plural depth receivers comprising a first seismic receiver located at a first depth and a second seismic receiver located at a second depth, or, a first seismic source located at the first depth and a second seismic source located at the second depth;
- wherein the second depth is below the first depth;
- and
- a processor configured to aligning primary reflections within the seismic data to provide improved seismic data.
A method for de-ghosting seismic data, the method comprising:
- receiving seismic data corresponding to plural depth sources or plural depth receivers located at a first depth and a second depth below a geophysical surface, wherein the second depth is below the first depth;
- the plural depth sources or plural depth receivers comprising a first seismic receiver located at the first depth and a second seismic receiver located at the second depth, or, a first seismic source located at the first depth and a second seismic source located at the second depth;
- determining a position difference or a propagation delay corresponding to the plural depth sources or the plural depth receivers;
- and
- providing improved seismic data from the seismic data by using the position difference or the propagation delay to align primary reflections within the seismic data.
Dependencies are inferred from the claim text.