Patent ID: 11880008
Assignee: BP CORPORATION NORTH AMERICA INC.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 19:
20. A device, comprising:
a processor that when in operation:
receives seismic data inclusive of data that corresponds to reflections from a target below a distorting velocity feature in a subsurface, wherein the presence of the distorting velocity feature results in distortion to a seismic image;
adds a velocity perturbation to a current velocity model that represents a portion of the subsurface responsible for the distortion to the seismic image, in order to generate a perturbed velocity model;
generates an image via seismic migration of the seismic data and the perturbed velocity model;
generates and assign a measure of quality to the image;
determines whether the measure of quality assigned to the image is an optimal measure of quality at a particular location of the current velocity model that corresponds to the portion of the subsurface responsible for the distortion to the seismic image; and
updates the current velocity model utilized to generate the seismic image to generate a revised velocity model utilizing the measure of quality assigned to the image when the measure of quality assigned to the image is determined to be the optimal measure of quality at the particular location of the current velocity model that corresponds to the portion of the subsurface responsible for the distortion to the seismic image.