The use of sound electromagnetic energy converters use of electromagnetic acoustic transducers in evaluation of cement around the hole in downhole cement evaluation

摘要

The invention relates to a method for recording interconnection, which comprises a probe, an acoustic transducer, an acoustic transducer and an acoustic receiver. The acoustic transducer includes a magnet with a coil inside and an acoustic transducer with a microphone.The coil is excited by a current source. The acoustic transducer can also include an acoustic transducer and an electromagnetic acoustic device. An acoustic transducer that produces the shape of an acoustic transducerDifferent waves, including compression wave, shear wave, shear wave, transverse polarization shear wave. Transverse polarization shear wave, shear wave, shear wave, shear wave and shear wave;