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- W2388706067 abstract "The mode waves propagating along borehole axis including the stoneley waves,pseudo-Rayleigh waves,flexural waves and screwed waves,are all dispersive waves.The dispersion characteristic of mode waves contains lots of information related to the formation properties.Proposed is a multi-channel acoustic signal dispersion analysis method based on analyzing characteristic of acoustic logging data.In the proposed method,firstly the velocity and attenuation of the mode waves are obtained from the modified matrix-pencil method,then slowness frequency correlation(SFC) map is worked out with adaptive mode waves demarcation method and reference velocity range,at last optimized slowness dispersion curves are obtained from the SFC map weight and the maximum value.The proposed method eliminates the aliasing effect on the SFC map,and the dispersion curves are stable and reliable compared with the existing methods.The proposed method is verified by the processing of synthesized multi-pole acoustic logging waveforms and field data application." @default.
- W2388706067 created "2016-06-24" @default.
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- W2388706067 date "2012-01-01" @default.
- W2388706067 modified "2023-09-23" @default.
- W2388706067 title "A Multi-channel Acoustic Logging Signal Dispersion Analysis Method" @default.
- W2388706067 hasPublicationYear "2012" @default.
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