RESEARCH ARTICLE


The Design of the Acoustic Isolator Used in Acoustic Telemetry While Drilling



Xie Haiming1, 2, *, Zhou Jing2, Zhang Feng3
1 Xidian University, Xian, 710065, P.R. China;
2 Xian Shiyou University, Xian, 710065, P.R. China;
3 China Ship Scientific Research Center, Xian, 710000, P.R. China


Article Metrics

CrossRef Citations:
0
Total Statistics:

Full-Text HTML Views: 98
Abstract HTML Views: 624
PDF Downloads: 269
Total Views/Downloads: 991
Unique Statistics:

Full-Text HTML Views: 79
Abstract HTML Views: 360
PDF Downloads: 197
Total Views/Downloads: 636



© 2015 Haiming et al.;

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: https://creativecommons.org/licenses/by/4.0/legalcode. This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Correspondence: * Address correspondence to this author at the Xidian University, Xian, Shaanxi, 710065, P.R. China; Tel: +86 29 88382636; Fax: +86 29 88382636; E-mail: haimingxie@xsyu.edu.cn


Abstract

The acoustic isolator between the drilling bit and the acoustic piezoelectric transducer can attenuate the drilling noise transmitted through the drill collar to avoid interference with the transmission of acoustic signals while drilling, and also can be used to weaken the influence of downlink acoustic signal with the uplink channel produced by the transducer. This paper improves the characteristic analysis of tapered acoustic transmission model, and the size and structure of the acoustic isolator has been designed which has the characteristic frequencies of 700~800Hz and 1200~1300Hz.

Keywords: Acoustic isolator, Acoustic telemetry while drilling, Acoustic transmission, Modeling analysis.