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Keywords: Fourier Transform
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Proceedings Papers

Paper presented at the SPWLA 51st Annual Logging Symposium, June 19–23, 2010
Paper Number: SPWLA-2010-72280
... secondary data information scale change estimation wavelet Fourier Transform location information different signal different scale SPWLA 51st Annual Logging Symposium, June 19-23, 2010 1 SAMPLING, SMOOTHING AND BLOCKING. USING SCALE CHANGES TO IMPROVE DATA QUALITY Stephen Tyson, School...
Proceedings Papers

Paper presented at the SPWLA 49th Annual Logging Symposium, May 25–28, 2008
Paper Number: SPWLA-2008-Q
... of the location and magnitude, both in length and depth, of the machined sections. An additional positive attribute of the developed algorithms is that they are not limited to steel pipes. Another example is presented where the cement bond evaluation was performed on fiberglass casing. The fast Fourier transforms...
Proceedings Papers

Paper presented at the SPWLA 29th Annual Logging Symposium, June 5–8, 1988
Paper Number: SPWLA-1988-U
... analysis cutoff frequency Fourier Transform statistics real time system frequency information application well logging spatial frequency filter depth domain noise spectrum frequency domain University Upstream Oil & Gas resolution Gearhart industry vertical resolution frequency...
Proceedings Papers

Paper presented at the SPWLA 28th Annual Logging Symposium, June 29–July 2, 1987
Paper Number: SPWLA-1987-WW
... log analysis machine learning well logging radiation june 29-july 2 Upstream Oil & Gas calculation stabilizer Fourier Transform Artificial Intelligence statistical fluctuation Symposium kernel formula correspond coefficient noise deconvolution efficiency Probe...
Proceedings Papers

Paper presented at the SPWLA 25th Annual Logging Symposium, June 10–13, 1984
Paper Number: SPWLA-1984-P
... Fourier transform is applied in the procedure. The method, referred to as weighted overlap-addition convolution, is a modification of several methods often used to describe speech and other quasi-stationary signals. This method is shown to be versatile, relatively accurate, and easy to apply. The error...
Proceedings Papers

Paper presented at the SPWLA 23rd Annual Logging Symposium, July 6–9, 1982
Paper Number: SPWLA-1982-J
... displacement Fourier Transform Symposium stratadip log analysis dip curve correlation algorithm interpretation Upstream Oil & Gas general displacement Computation noise displacement limit frequency information analytical approach pad trace equation detailed dip determination SPWLA...
Proceedings Papers

Paper presented at the SPWLA 10th Annual Logging Symposium, May 25–28, 1969
Paper Number: SPWLA-1969-T
... before processing provides the means to improve the effect of Fourier Transform operations. The use of the derivative of the log appears to be useful in pre conditioning the log data to obtain a normal distribution of the power spectrum rather than a Poisson distribution. log analysis correlation...

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