Pseudo-acoustic curve construction method based on nonsubsampled Contourlet transformation
A non-subsampled, pseudosonic wave technology, applied in the field of pseudosonic wave curve construction based on non-subsampled Contourlet transform
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[0025] The method for constructing pseudoacoustic curves according to the present invention mainly includes: reading in ASCII format logging data, preprocessing of logging data, forward and reverse calculation of multi-level non-subsampling Contourlet transformation, display and comparison of pseudoacoustic curves, and the like. Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0026] figure 1 A flow chart of a method for constructing a quasi-acoustic wave curve of non-subsampled Contourlet transform according to an embodiment of the present invention is shown.
[0027] First, at step 100, well logging data is read, and here, the well logging data in ASCII format is usually used.
[0028] Next, in step 110, the read logging data is preprocessed. In this embodiment, the preprocessing may include curve correction, standardization and normalization. Specifically, firstly, smoothing and filtering are performed on eac...
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Abstract
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