Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type
Reexamination Certificate
2005-06-07
2005-06-07
Lobo, Ian J. (Department: 3662)
Communications, electrical: acoustic wave systems and devices
Seismic prospecting
Land-reflection type
C367S021000, C367S058000, C367S086000, C367S011000
Reexamination Certificate
active
06903999
ABSTRACT:
A method for estimating near-surface material properties in the vicinity of a locally dense group of seismic receivers is disclosed. The method includes receiving seismic data that has been measured by a locally dense group of seismic receivers. Local derivatives of the wavefield are estimated such that the derivatives are centered at a single location preferably using the Lax-Wendroff correction. Physical relationships between the estimated derivatives including the free surface condition and wave equations are used to estimate near-surface material properties in the vicinity of the receiver group. Another embodiment of the invention is disclosed wherein the physical relationships used to estimate material properties are derived from the physics of plane waves arriving at the receiver group, and the group of receivers does not include any buried receivers.
REFERENCES:
patent: 4611312 (1986-09-01), Ikeda
patent: 5214613 (1993-05-01), Esmersoy
patent: 5588032 (1996-12-01), Johnson et al.
Curtis et al., “Volumetric wavefield recording and wave equation inversionfor near-surface material properties”, Geophysics (USA), vol. 67, No. 5., pp. 1602-1611, Sep. 2002.
Yi et al., “Wave equation inversion of skeletalized geophysical data”, Geophysical-Journal-International(UK), vol. 105, No. 2., p 289-294, May 1991, ISSN: 0956-540X.
Anders Robertsson Johan Olof
Curtis Andrew
Muijs Remco
Batzer William B.
Lobo Ian J.
Ryberg John J.
Schlumberger Technology Corporation
Wang William L.
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