Geophone noise attenuation and wavefield separation using a...

Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Earth science

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C702S014000, C702S066000, C367S021000, C367S043000

Reexamination Certificate

active

07953556

ABSTRACT:
Methods and apparatus for processing dual sensor (e.g., hydrophone and vertical geophone) data that includes intrinsic removal of noise as well as enhancing the wavefield separation are provided. The methods disclosed herein are based on a decomposition of data simultaneously into dip and frequency while retaining temporal locality. The noise removed may be mainly coherent geophone noise from the vertical geophone, also known as V(z) noise.

REFERENCES:
patent: 5442591 (1995-08-01), Dragoset et al.
patent: 5991238 (1999-11-01), Barr
patent: 6021090 (2000-02-01), Gaiser et al.
patent: 6721662 (2004-04-01), Wood
patent: 6832161 (2004-12-01), Moore
patent: 7356410 (2008-04-01), Rode et al.
patent: 2007/0294036 (2007-12-01), Strack et al.
patent: 2009/0168599 (2009-07-01), Suarez et al.
patent: 2 429 527 (2007-02-01), None
ISA of PCT/US08/55816.
PCT Search Report, Appn. No. PCT/US2008/055816, dated Jun. 30, 2009.
John Brittan et al., “Applications of adaptive noise attenuation to dual sensor seismic data,” Expanded Abstracts, 73rd SEG Annual International Meeting, 2003: pp. 653-656.
Fred J. Barr et al., “Attenuation of Water-Column Reverberations Using Pressure and Velocity Detectors in a Water-Bottom Cable,” Expanded Abstracts, 59th SEG Annual International Meeting, 1989: pp. 653-656.
M. T. Taner et al., “Complex seismic trace analysis,” Geophysics, Jun. 1979 vol. 44(6): pp. 1041-1063.
Andrew Shatilo et al., “Effect of Noise Suppression on Quality of 2C OBC Image,” Expanded Abstracts, 74th SEG Annual International Exposition and Meeting, 2004: pp. 917-920.
Amal Ray et al., “First nodal OBS acquisition from the Thunder Horse Field in the deep water of the Gulf of Mexico,” Expanded Abstracts, 74th SEG Annual International Exposition and Meeting, 2004: pp. 406-409.
Bill Dragoset et al., “Geophysical applications of adaptive-noise cancellation,” Expanded Abstracts, 65th SEG Annual International Meeting, 1995: pp. 1389-1392.
Stéphane G. Mallat et al., “Matching Pursuits with Time-Frequency Dictionaries,” IEEE Transactions on Signal Processing, Dec. 1993 vol. 41(12): pp. 3397-3415.
J. Paffenholz et al., “Shear Wave Noise on OBS Vz Data—Part II Elastic Modeling of Scatterers in the Seabed,” Expanded Abstracts, 68th EAGE Conference & Exhibition, Jun. 2006: pp. A72-A76.
James E. Gaiser, “Vector-fidelity benefits of buried OBC detectors at Teal South,” 74th SEG International Exposition and Annual Meeting, Oct. 2004: pp. 913-916.
J. Morlet et al., “Wave propagation and sampling theory—Part II: Sampling theory and complex waves,” Geophysics, Feb. 1982 vol. 47(2): pp. 222-236.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Geophone noise attenuation and wavefield separation using a... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Geophone noise attenuation and wavefield separation using a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Geophone noise attenuation and wavefield separation using a... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2646532

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.