Jeffrey Mark Rutledge

Address:

3127 Redcliff Dr, Sugar Land, TX 77479

VIN:

5NPET46C67H221878

Make:

HYUNDAI

Model:

SONATA

Year:

2007

US Patent:

62955055, Sep 25, 2001

Filed:

Dec 17, 1997

Appl. No.:

8/999900

Inventors:

Steven Brent Assa - Austin TX
Jeffrey Mark Rutledge - Sugar Land TX

Assignee:

Schlumberger Technology Corporation - Austin TX

International Classification:

G06F 1900

US Classification:

702 17

Abstract:

A method for efficiently and accurately producing filter coefficients for wavefield extrapolation which is particularly useful for migrating seismic data using a multiprocessor parallel computer as provided. In 3D seismic migration, the techniques have been developed for 3D processing using 1D extrapolation filters. The present invention uses a Remez-type approximation for developing such extrapolation filters which increases image quality or reduces processing time, or both. Additionally, the method provides an automated method for producing such extrapolation filters which is particularly useful in parallel seismic migration because of the large number of extrapolation filters which must be produced. The automated method of generating filters sets a frequency transition band where the amplitude is specified to be monotonically decreasing which insures stable filter design.