Title: Design and evaluation of a vibration sensor for measurement-while-drilling

Authors: Yu Liu, Jun Liu, Leilei Li, Yingjun Pan

Addresses: Department of Optoelectronics Engineering, Chongqing University of Posts and Telecommunications, 400065, China. ' Department of Optoelectronics Engineering, Chongqing University of Posts and Telecommunications, 400065, China. ' Department of Optoelectronic Engineering, Chongqing University, 400044, China. ' Department of Optoelectronic Engineering, Chongqing University, 400044, China

Abstract: For the specific functional requirements, the design based on micro-quartz gyro was carried out to keep the sensor|s detection side in isolation from the exciting vibrations in Measurement-While-Drilling (MWD). The supporting node position was calculated to achieve good resistance to the shock and vibration. A new mechanical structure prototyping based on Finite Element Method (FEM) was presented to achieve good zero output stability. The structure designation and performance optimisation of a solid-vibration-beam based gyro were also introduced, and the validity of the designed prototyping was proved through the simulation experiments.

Keywords: micro-quartz gyros; angular rate sensors; MWD; measurement-while-drilling; oilfield instrumentation; finite element method; FEM; simulation; vibration sensors.

DOI: 10.1504/IJCAT.2011.038553

International Journal of Computer Applications in Technology, 2011 Vol.40 No.1/2, pp.79 - 84

Published online: 10 Feb 2011 *

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