Patent ID: 11947063
Assignee: SAUDI ARABIAN OIL COMPANY
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A system, comprising:
a seismic acquisition system configured to acquire a pre-stack seismic dataset, wherein the pre-stack seismic dataset comprises a plurality of pre-stack traces; and
a seismic processor, configured to:
generate a pre-processed seismic dataset and an initial refraction velocity model based, at least in part, on the pre-stack seismic dataset;
generate a first-break energy-enhanced seismic dataset using nonlinear beamforming based, at least in part, on the pre-processed seismic dataset and the initial refraction velocity model;
estimate a refined refraction velocity model based, at least in part, on the first-break energy-enhanced seismic dataset;
generate a post-processed seismic dataset based, at least in part, on the refined refraction velocity model and the first-break energy-enhanced seismic dataset;
determine a first-break time for each pre-stack trace based, at least in part, on the refined refraction velocity model and the post-processed seismic dataset;
generate a seismic image based, at least in part, on the first-break time for each pre-stack trace; and
determine a location of a hydrocarbon reservoir based, at least in part, on the seismic image.