Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science
Reexamination Certificate
2005-11-08
2005-11-08
McElheny, Jr., Donald (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Earth science
Reexamination Certificate
active
06963804
ABSTRACT:
A method of processing data of seismic traces for geophysical interpretation of the earth's subsurface includes the steps of determining a modified Hilbert transform of an input trace of data values to detect rapid and slow changes in the input trace with reduced sensitivity to noise and providing results of modified Hilbert transform to enable identification of any detected rapid or slow changes. The modified Hilbert transform is advantageously a windowed Fourier transform, wherein the input trace is represented as x(t), where t indicates time, a window function is represented by win(τ), a first function is defined as g(τ)=x(t−τ)·win(τ), X(t,ω) is the Fourier transform of g(τ), hi(t) represents a sum over imaginary portions of X(t,ω), hr(t) represents a sum over real portions of X(t,ω), and the modified Hilbert transform is h(t)=hr(t)+i·hi(t). In its most general form, for any integer n greater than 1, hr(t)=ΣωReal {X(t,ω)}nand hi(t)=ΣωImag{X(t,ω)}n.
REFERENCES:
patent: 4535417 (1985-08-01), Peacock
patent: 5850622 (1998-12-01), Vassiliou et al.
patent: 5995907 (1999-11-01), Van Bemmel et al.
patent: 6131071 (2000-10-01), Partyka et al.
patent: 6487502 (2002-11-01), Taner
patent: 6597994 (2003-07-01), Meek
Abelman ,Frayne & Schwab
McElheny Jr. Donald
Saudi Arabian Oil Company
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