Seismic processing with general non-hyperbolic travel-time...

Details Seismic processing with general non-hyperbolic travel-time... Seismic processing with general non-hyperbolic travel-time...

2005-01-04

2005-01-04

Raymond, Edward (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system

Performance or efficiency evaluation

C367S073000

Reexamination Certificate

active

06839658

ABSTRACT:
A method of constructing a basis of functions intended for the building of approximations of one-way or two-way seismic traveltime versus offset functions. The method is characterized by the combination of the following steps of (a) creating a distribution of reference one-way or two-way traveltime versus offset functions by traveltime modelling in a set of velocity models representing possible velocity distributions, (b) obtaining new reference functions by modifying these reference traveltime functions by applying an operator to them, (c) selecting a set of discrete offsets to make these new reference functions discrete, (d) arranging these discrete functions in columns to form a matrix, (e) applying a singular value decomposition to this matrix, with singular values sorted in decreasing order, to express its columns as linear combinations of the columns of an orthogonal matrix, and (f) building the basis functions by interpolating the columns of the orthogonal matrix.

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“AVO Attribute Extraction via Principal Component Analysis”, Saleh, Shell International Exploration and Production Inc., 2000, 4 pages.
“Joint Estimation of AVO and Kinematic Parameters”, Grion et al, European Association of Geoscientists & Engineers, 1998, pp. 405-422.

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