Method for filtering gamma ray well logging tool response to enhance vertical detail while suppressing statistical noise
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United States of America Patent
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Sep 30, 1997
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app pub date -
Sep 26, 1994
filing date -
Sep 1, 1992
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Abstract
A typical nuclear well logging tool forms a count rate data stream including statistical noise. A robust single pass partially deconvolved smoothing filter matched to the tool response is applied to the count rate data to enhance vertical resolution while minimizing the statistical noise increase. The smoothing filter is partially deconvolved by the application of a three point deconvolution characteristic of the cusp portion of a related cusp function and a box function representative of the tool response.
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