Transducers and acoustic well logging technology

Improvements in the structure and vibration mode of acoustic transducers has led to remarkable progress in acoustic well logging technology both for wireline logging and logging while drilling. We analyze recent developments, particularly in China,along the acoustic transducer. Monopole acoustic well logging is mature in China.Furthermore, the more advanced multipole acoustic well logging technology in which an asymmetric acoustic source is used has already entered the production stage.The latest generation of acoustic logging, known as acoustic phased-array well logging and featuring directional acoustic radiation and receiving,is being developed,and significant achievements have already been made in China.