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Electrical Interference Simulation and Prediction Model for Acoustoelectric Logging Detector.

Hongzhi Chen1,2, Junqiang Lu1,2, Xiaodong Ju1,2

  • 1State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing 102249, China.

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Summary

High-voltage pulses from acoustic logging instruments cause electrical interference, disrupting measurements. This study develops a simulation model to predict and quantify these interference signals, improving logging tool reliability.

Keywords:
acoustoelectric loggingacoustoelectric logging detectorcapacitive couplingelectrode measurement loophigh-voltage pulse

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Area of Science:

  • Geophysics
  • Electrical Engineering
  • Signal Processing

Background:

  • Acoustic logging instruments generate high voltages, leading to electrical interference.
  • This interference can damage logging tools and affect signal measurements.
  • Capacitive coupling from high-voltage pulses disrupts electrode measurement loops.

Purpose of the Study:

  • To simulate and analyze electrical interference in acoustic logging.
  • To develop a model for predicting interference characteristics.
  • To improve the reliability of acoustoelectric signal measurements.

Main Methods:

  • Qualitative analysis of interference causes.
  • Simulation of high-voltage pulses, capacitive coupling, and electrode loops.
  • Development of an electrical interference simulation and prediction model.

Main Results:

  • Quantified characteristics of electrical interference signals.
  • Established a model based on detector structure and logging environment.
  • Identified capacitive coupling as a key interference pathway.

Conclusions:

  • The developed model effectively simulates and predicts electrical interference.
  • Understanding interference mechanisms enhances logging tool performance.
  • Mitigation strategies can be developed based on model predictions.