Patent · US Active

Method for determining impedance coefficients of a seismic trace

US7519477B2 · kind B2 · utility

2Cited by

1References

16Claims

0Family size

Assignee

BHP Billiton Innovation Pty Ltd · AU

Inventors

Michael Edwin Glinsky · Livermore, US
Jerome Kalifa · Oak Park, US
Stephane Mallat · Paris, FR

Key dates

Filing date	Oct 20, 2006
Grant date	Apr 14, 2009
Priority date	—
Expiry date	Nov 8, 2026

Classification

Technology area (CPC G)Physics
CPC primaryG01V1/306
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method for determining impedance coefficients of a seismic trace comprises determining reflection coefficients of the seismic trace, for example using a sparse spike inversion, integrating the reflection coefficients with respect to time to obtain impedance coefficients, and filtering the impedance coefficients by applying a low-cut window filter. The window size and/or shape may be defined by a variable parameter which may be either specified by a user or optimized on the basis of a lateral variability parameter calculated for different values of the window parameter.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.