Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    The effect of gauge length on axially incident P-waves measured using fibre optic distributed vibration sensing

    Access Status
    Open access via publisher
    Authors
    Dean, Tim
    Cuny, T.
    Hartog, A.
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Dean, T. and Cuny, T. and Hartog, A. 2017. The effect of gauge length on axially incident P-waves measured using fibre optic distributed vibration sensing. Geophysical Prospecting. 65 (1): pp. 184-193.
    Source Title
    Geophysical Prospecting
    DOI
    10.1111/1365-2478.12419
    ISSN
    0016-8025
    School
    Department of Exploration Geophysics
    URI
    http://hdl.handle.net/20.500.11937/63154
    Collection
    • Curtin Research Publications
    Abstract

    © 2016 European Association of Geoscientists & Engineers Distributed vibration sensing, also known as distributed acoustic sensing, is a relatively new method for recording vertical seismic profile data using a fibre optic cable as the sensor. The signal obtained from such systems is a distributed measurement over a length of fibre referred to as the gauge length. In this paper, we show that gauge length selection is one of the most important acquisition parameters for a distributed vibration sensing survey. If the gauge length is too small, then the signal-to-noise ratio will be poor. If the gauge length is too large, resolution will be reduced and the shape of the wavelet will be distorted. The optimum gauge length, as derived here, is a function of the velocity and frequencies of the seismic waves being measured. If these attributes vary considerably over the depth of a survey, then the use of different gauge lengths is recommended. The significant increases in data quality resulting from the use of multiple gauge length values are demonstrated using field data.

    Related items

    Showing items related by title, author, creator and subject.

    • Amplitude and phase response of DAS receivers
      Bona, A.; Dean, T.; Correa, J.; Pevzner, R.; Tertyshnikov, Konstantin; Van Zaanen, L. (2017)
      The emergence of distributed acoustic sensing (DAS) as a method for acquiring seismic data has inevitably resulted in comparisons between DAS and geophone data. Herein we present and analyse the differences between the ...
    • Tensile strength of pine needles and their feasibility as reinforcement in composite materials
      Dong, Jonathan; Parsons, D.; Davies, I. (2014)
      A feasibility study concerning the use of pine needles from Maritime Pine (Pinus pinaster) trees as reinforcement in composite materials has been presented in this paper with the tensile strength being investigated for a ...
    • Determination of the optimum gauge length for borehole seismic surveys acquired using distributed vibration sensing
      Dean, Tim; Cuny, T.; Hartog, A. (2015)
      Interest in the use of fibre-optic-based distibuted vibration sensing systems is rapidly expanding with users primarily drawn by its ability to make a large number of high-density strain measurements without the need for ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.