Filter for removal of coherent noise from seismic data

Patent 5392213 Issued on February 21, 1995. Estimated Expiration Date:

October 23, 2012. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

2473469

2872996

2897477

Method of enhancing common depth point seismic data
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Inventor: Malloy

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Inventors

Application

No. 965598 filed on 10/23/1992

US Classes:

702/17, Filtering or noise reduction/removal367/40, Received correlation367/124, By combining or comparing signals367/126Addition or subtraction

Examiners

Primary: Hayes, Gail O.
Assistant: Tkacs, Stephen R.

Attorney, Agent or Firm

McLean; Susan A., Bell; Keith A.

International Class

G01V 001/36

Abstract

A method for suppressing or removing coherent noise from seismic or borehole data is disclosed. The method requires horizontal alignment of the traces, comparison of the amplitude, phase and/or shape of neighboring traces, and subtraction of traces from neighboring traces only where the local correlation is high.