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Simulation and Optimization of Transmitting Transducers for Well Logging.

Xu Gao1,2, Jing Zhou1,2, Xiao Du1,2

  • 1College of Petroleum Engineering, Xi'an Shiyou University, Xi'an 710065, China.

Sensors (Basel, Switzerland)
|November 9, 2024
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A novel microporous liquid-electric transducer generates powerful shock waves for enhanced acoustic well logging. This new technology offers higher amplitude and wider frequency acoustic waves, improving geological identification and detection range.

Keywords:
liquid–electricmicroporous electrodetransmitting transducer

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Area of Science:

  • Geophysics
  • Acoustic Transduction
  • Materials Science

Background:

  • Conventional piezoelectric transducers in acoustic well logging have limitations in frequency range and wave amplitude.
  • Low wave amplitude masks useful information with noise, hindering accurate geological identification and limiting detection range.

Purpose of the Study:

  • To develop a novel microporous liquid-electric transmission transducer for improved acoustic well logging.
  • To enhance detection accuracy, geological identification, and extend the effective detection range.

Main Methods:

  • Constructed a model of the liquid-electric microporous transmitting transducer using simulations and numerical calculations.
  • Analyzed the electro-acoustic characteristics of the transducer.
  • Proposed and compared two optimized microporous electrode structures: triangular pyramid and rectangular.

Main Results:

  • The optimized triangular pyramid microporous electrode transducer generates acoustic waves with significantly higher amplitude and a wider frequency range compared to piezoelectric transducers.
  • The new transducer maintains high energy output while achieving high frequencies.
  • Achieved detection distances up to hundreds of meters, enabling precise characterization of small geological bodies.

Conclusions:

  • The microporous liquid-electric transducer offers superior performance over conventional piezoelectric transducers for acoustic well logging.
  • This technology enables long-range, high-resolution geological detection, with significant implications for exploration and energy sectors.