A NEW DESIGN OF UNIPOLE SOURCE FOR AZIMUTH ACOUSTIC LOGGING WHILE DRILLING

摘要：

　　A new model of unipole source with U shape was designed for azimuthal acoustic logging while drilling.The transmitter was simulated numerically by finite elements method.The model was established and multi-mode couplings were analyzed by eigenfrequency calculations.By harmonic response analysis, the admittance curves and transmitting voltage response curves were given with changing frequencies.In the frequency range of 2.5-25 kHz, the maximum value of transmitting voltage response is up to 156dB, and the-3 dB bandwidth is up to 9.5 kHz.This work provides a theoretical basis for unipole source design in azimuth logging while drilling applications.

关键词： Unipole source Curved beam High power Wide bandwidth Multimode Azimuth acoustic logging while drilling

作者: Qian WEI Bin LIU Cheng-xuan CHE Jian-sheng CONG Xiu-ming WANG

作者单位: Institute of Acoustics, Chinese Academy of Sciences, Beijing, 100190, P.R.China;Beijing Engineering and Technology Research Center for Deep Drilling Exploration, Beijing, 100190, P.R.China

会议类型: 国际会议

会议名称: The 2019 Symposium on Piezoelectricity,Acoustic Waves and Device Applications(2019(第13届)全国压电和声波理论及器件技术研讨会)

会议地点: 哈尔滨

会议语种:英文

页码: 93-96

在线出版日期: 2019-01-11（万方平台首次上网日期，不代表论文的发表时间）