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    A feasibility study on adopting coiled tubing drilling technology for deep hard rock mining exploration

    Access Status
    Fulltext not available
    Authors
    Mokaramian, Amir
    Rasouli, Vamegh
    Cavanough, G.
    Date
    2012
    Type
    Conference Paper
    
    Metadata
    Show full item record
    Citation
    Mokaramian, A. and Rasouli, V. and Cavanough, G. 2012. A feasibility study on adopting coiled tubing drilling technology for deep hard rock mining exploration, in Y. Potvin (ed), Deep Mining 2012: Proceedings of the Sixth International Seminar on Deep and High Stress Mining, Mar 28-30 2012, pp. 487-499. Perth: Australian Centre for Geomechanics.
    Source Title
    Australian Centre for Geomechanics
    Source Conference
    Deep Mining 2012
    ISBN
    978-0-9806154-8-7
    School
    Department of Petroleum Engineering
    Remarks

    See the Related Links field for a link to information about the conference Proceedings.

    A copy of this paper may be available by contacting Australian Centre for Geomechanics, www.acg.uwa.edu.au

    URI
    http://hdl.handle.net/20.500.11937/15357
    Collection
    • Curtin Research Publications
    Abstract

    In mineral exploration, the main purpose of drilling is to acquire a large number of samples to test them in the lab and obtain information about the vertical and lateral distribution of the geological formations, the structural regime, ore and its grade. This would determine if the site is feasible for further investigations and studies. With this in mind, perhaps obtaining core samples over whole overburden is not always essential and having cuttings of small sizes could be used for the analyses needed during the exploration phase. If this is considered to be true, then drilling small size holes as fast as possible and obtaining the samples to the surface would be a good alternative with several advantages over conventional drilling methods for deep hard rock mineral exploration. Drilling deep wells of the order of a few kilometres is very common in oil and gas industry; this justifies the idea of adopting the existing technologies into mineral exploration drilling. The need to drill deep boreholes for mineral exploration purposes has raised the attention to investigate the feasibility of using the coiled tube (CT) drilling for such applications. CT is a continuous length of electric resistance welded (ERW) tubular pipe with no connection, in different lengths and is spooled onto a take-up reel during the first stage of manufacturing. While advances have been made in the CT technology in the oil and gas industry within the past few decades, introducing this system for mining applications is subjected to different challenges.In this paper a review of the CT system and its capabilities and limitations will be presented. Technical design parameters for a CT system will be listed and discussed in detail. This will enable us to identify the areas where modifications are required for the CT technology – had it been used for mining exploration drilling. Drilling fluid specifications and environmental impact are some of the parameters to be compared between a typical mining, and oil and gas drilling. This study will conclude possible adoption of CT system for mining exploration drilling and provide the range of modifications required for this purpose to the current CT technology. This study is part of the Deep Exploration Technologies (DET) programme which is a cooperative research centre (CRC) planning in providing research solutions for drilling deep mineral deposits.

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