Title :
A New Method for Extracting Phase Slowness of Dispersive Waves
Author :
Wang, Rui-Jia ; Qiao, Wen-Xiao ; Che, Xiao-Hua
Author_Institution :
State Key Lab. of Pet. Resource & Prospecting, China Univ. of Pet., Beijing, China
Abstract :
A method of frequency inversion (FIM) is developed to analyze phase slowness of multi-channel dispersive waves. To verify this method, we processed both the synthesized multipole array waveforms excited by dipole source in fluid-filled borehole and field data measured by a multipole array acoustic logging tool (MPAL). The results show that FIM method is of better performance than the traditional method.
Keywords :
acoustic dispersion; acoustic signal processing; array signal processing; geophysical signal processing; waveform analysis; well logging; dipole source; fluid-filled borehole; frequency inversion; multichannel dispersive waves; multipole array acoustic logging tool; multipole array waveform synthesis; phase slowness extraction; Acoustic arrays; Acoustic measurements; Acoustic waves; Attenuation; Dispersion; Equations; Frequency domain analysis; Laboratories; Petroleum; Prediction theory;
Conference_Titel :
Image and Signal Processing, 2009. CISP '09. 2nd International Congress on
Conference_Location :
Tianjin
Print_ISBN :
978-1-4244-4129-7
Electronic_ISBN :
978-1-4244-4131-0
DOI :
10.1109/CISP.2009.5303446
