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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 68 (1984)

Issue: 4. (April)

First Page: 461

Last Page: 461

Title: Three-Dimensional Plane Pass Filtering as a Regridding and Interpolation Technique: ABSTRACT

Author(s): Steve Chilcoat, Chen Yu Wang


Efficient and accurate interpretation of dense irregular 2-D seismic data is an ongoing problem in virtually every exploration area. Developing interpolation algorithms which would create pseudo 3-D volumes from sparse 2-D data could allow a geophysicist an efficient means of interpreting the broad geologic features in an area. An interpolation algorithm which uses the 3-D nature of the irregular 2-D data can be developed which is analogous to sinc function interpolation in 1-D. A Gaussian 3-D plane pass filter is demonstrated to produce reasonable interpolated results within the pass region of the filter. This particular technique has the built-in flexibility of allowing the geophysicist to choose a broad pass volume which essentially regrids existing data with very litt e interpolation or allows the choice of a narrow pass volume to interpolate those spatial frequencies which are not aliased by the irregular sampling of the input data.

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Copyright 1997 American Association of Petroleum Geologists