Removing NMO Stretch Using the Radon and Fourier-Radon Transforms

A-18 REMOVING NMO STRETCH USING THE RADON AND FOURIER-RADON TRANSFORMS GRAHAM J HICKS Introduction 1 Department of Geological Sciences and Geological Engineering Queen’s University Kingston K7L 3N6 Canada Fundamental to the creation of the traditional Common Midpoint (CMP) stack is a normal-moveout (NMO) correction. It has long been known that NMO stretch distorts the recorded wavelet limiting the offset range that can be successfully stacked without reducing the resolution of the stack. I describe a method for removing NMO stretch during stacking that uses the parabolic Radon transform (PRT). I also introduce a new transform that is a combination of