Loading patent…
AssigneePGS Geophysical AS
InventorsEndrias G. Asgedom, Okwudili Orji, Walter Söllner
Estimating the term…
Processes and systems described herein are directed to imaging a subterranean formation from seismic data recorded in a marine survey with moving marine vibrators. The marine vibrators generate random sweeps with random sweep signatures. Processes and systems generate an up-going pressure wavefield from measured pressure and vertical velocity wavefield data recorded in the marine survey and obtain a downgoing vertical acceleration wavefield that records source wavefields, directivity, source ghosts, and random signatures of the random sweeps. The downgoing vertical acceleration wavefield data is deconvolved from the up-going pressure wavefield to obtain a subsurface reflectivity wavefield that is used to generate an image of the subterranean formation with reduced contamination from source wavefields, directivity, source ghosts, and random signatures of the random sweeps.
In a process for generating an image of a subterranean formation from seismic data recorded in a marine survey of a subterranean formation, the improvement comprising:
A system for producing an image of a subterranean formation, the system comprising:
A non-transitory computer-readable medium encoded with machine-readable instructions for enabling one or more processors of a computer system to generate an image of a subterranean formation by performing operations comprising:
Apparatus for generating an image of a subterranean formation from recorded pressure data and recorded vertical velocity data obtained in a marine survey of the subterranean formation using moving marine vibrators, the apparatus comprising:
A method for manufacturing a geophysical data product, the method comprising:
Dependencies are inferred from the claim text.