FINITE ELEMENT ANALYSIS OF WINDOW FUNCTION EXCITATION SIGNAL ON STONELEY WAVE LOGGING

摘要：

　　Based on the finite element method, the influence of the monopole transducer excited by the window function signal to produce the pure Stoneley wave is studied.The response of the transducer excited by different excitation signals in free fluid filed and borehole is studied.The result shows that the monopole transducer excited by traditional rectangular pulse signal will produce a strong high frequency signal that will generate complex wave train and is not conducive to the Stoneley wave analysis.Blackman window function excitation signal concentrate most energy in the low frequency band 0~5 kHz and has little energy leak in the high frequency.The wave train excited by this signal has a pure Stoneley wave and is beneficial to the Stoneley wave analysis.

关键词： Window function Excitation signal Stoneley wave Acoustic logging

作者: Xue-shen CAO Hao CHEN Xiu-ming WANG

作者单位: State Key Laboratory of Acoustics, Institute of Acoustics, Chinese Academy of Sciences, Beijing 1001 University of Chinese Academy of Sciences, Beijing 100190 Beijing Engineering Research Center of sea deep drilling and exploration, Beijing, 100190

会议类型: 国际会议

会议名称: The 2017 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2017全国压电和声波理论及器件技术研讨会)

会议地点: 成都

会议语种:英文

页码: 66-69

在线出版日期: 2017-10-27（万方平台首次上网日期，不代表论文的发表时间）