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US 10,386,517 B2Granted
Specular filter (SF) and dip oriented partial imaging (DOPI) seismic migration
AssigneeBP Corporation North America Inc.
InventorQie Zhang
Life of this patent
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AssigneeBP Corporation North America Inc.
InventorQie Zhang
Estimating the term…
According to one embodiment, subsurface ray directions in beam migration or subsurface wave propagation directions in reverse time migrations are used to obtain additional Specular Filter (SF) and Dip Oriented Partial Imaging (DOPI) images. SF migration applies a specular imaging condition during migration with a pre-specified subsurface dip field. It boosts the S/N ratio in both images and gathers, by effectively removing migration noise. DOPI images are produced by decomposing a standard migration image according to subsurface dip inclination or/and dip azimuth groups, providing various views of the subsurface image. Both SF and DOPI migration images can supply valuable additional information compared to a standard migration image, and they can be efficiently generated during migration.
A method of seismic exploration above a region of the subsurface of the earth containing structural or stratigraphic features conducive to the presence, migration, or accumulation of hydrocarbons, wherein is provided a seismic survey collected proximate to the region of the subsurface of the earth, said seismic survey comprising a plurality of seismic traces, comprising the steps of:
A computer system containing a plurality of computer instructions adapted to perform a method comprising:
Dependencies are inferred from the claim text.