DocumentCode :
691352
Title :
Wave simulations for cementing quality sonic logging using a finite difference method
Author :
Bei Tao ; De-hua Chen ; Xiu-ming Wang
Author_Institution :
State Key Lab. of Acoust., Inst. of Acoust., Beijing, China
fYear :
2013
fDate :
25-27 Oct. 2013
Firstpage :
1
Lastpage :
4
Abstract :
Cementing quality evaluation is significant in oil production. We use high order staggered grid finite difference method to simulate borehole acoustic field of different cement cases. First, results from the finite difference method and real axis integration for the open-hole case with fast formation are compared. Then, using the plane wave pulse source, the received waveforms of cases with different media outside the casing are calculated. Numerical results show that the various modes of wave amplitudes are very different when the media is different. Our numerical results show that, as acoustic impedance of cements decreases, the amplitude of S0 Lamb mode increases, whereas amplitude of A0 Lamb mode decreases.
Keywords :
cements (building materials); finite difference methods; petroleum industry; quality control; surface acoustic waves; Lamb mode; borehole acoustic field; cementing quality; finite difference method; oil production; plane wave pulse source; sonic logging; wave simulations; Acoustics; Finite difference methods; Mathematical model; Media; Propagation; Steel; Time-frequency analysis; Cementing quality; Finite difference method; Flexural wave;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Piezoelectricity, Acoustic Waves and Device Applications (SPAWDA), 2013 Symposium on
Conference_Location :
Changsha
Print_ISBN :
978-1-4799-3289-4
Type :
conf
DOI :
10.1109/SPAWDA.2013.6841139
Filename :
6841139
Link To Document :
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