David A Gaines

Address:

2235 Rolling Gln Dr, Spring, TX 77373

Phone:

(281)5286767

VIN:

3GCEC130X7G543005

Make:

CHEVROLET

Model:

SILVERADO 1500

Year:

2007

US Patent:

20190204463, Jul 4, 2019

Filed:

Nov 13, 2018

Appl. No.:

16/189711

Inventors:

Valeriy V. Brytik - Houston TX, US
Yaxun Tang - Spring TX, US
David Gaines - Houston TX, US
Fuxian Song - Spring TX, US
Anton Spirkin - Broomfield CO, US

International Classification:

G01V 1/28
G01V 1/30
G01V 1/34
G01V 1/36

Abstract:

A method and apparatus for imaging seismic data includes obtaining an initial model of a subsurface formation, wherein the model includes a plurality of nodes that form at least part of a grid; an initial dip value for the nodes; and a set of origin coordinates for each of the nodes; performing bottom-up ray tracing for each node in the model, resulting in a set of arrival coordinates for each node; identifying a plurality of gathers from the seismic data; for each gather: calculating a set of midpoint coordinates; defining a midpoint vicinity surrounding the set of midpoint coordinates; identifying the nodes having arrival coordinates within the midpoint vicinity; and estimating a unique aperture for each of the gathers based on the respective origin coordinates; storing the estimated apertures in a table; and generating a subsurface volume or image with subsurface reflectors determined with apertures of the respective gathers.