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  • 1.  wireline/slick line BOP reliability data

    Posted 20 days ago

    HI Community, 

    I am looking for wire line/slick line BOP reliability data for risk analysis on well intervention activity. Does anyone could address met o any data source? 



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    Carlo - Well eng manager UGS
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  • 2.  RE: wireline/slick line BOP reliability data

    Posted 15 days ago

    Hi Carlo,

    I don't know, but suspect that the Wellmaster/OREDA reliability data bases and/or their custodians may have looked at this for the North Sea.

    The Energy Safety Canada Drilling & Completion Committee and/or the Canadian Regulators may have some stats.

    The DACC issues excellent Industry Recommended Practices (IRPs) and I believe IRP 13 addresses Wireline Ops.

    In my opinion it is very high, provided that the SOPs are followed, especially with respect to maintenance, and the wireline crews are well trained.

    Most of the BOP leakage and failure problems that I have seen over my career have been with braided line and swabbing cable and/or related HPHT Operations &/or slickline breakages in extremely cold weather in highly corrosive or sour gas wells, when a remote blind ram operations are required.

    Input on this needs to be sought from the Production & Completions Community, who may/or may not see WITS notifications.

    I look forward to hearing more.

    Regards

    Bob



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    Bob Pearson
    Technical Director,
    Glynn Resources Ltd.
    Calgary, Alberta, Canada
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  • 3.  RE: wireline/slick line BOP reliability data

    Posted 15 days ago
    Firstly for correctness it is a wireline valve, ( often called a BOP, wrongly)
    Try searching under wireline valve failures
    This is also correctly recorded as a barrier failure when being pressure tested on a well but many times is actually stump tested so non operational time
    During normal operations when required as a barrier due to operational requirements slickline failures are less than 3%, this includes stripping, however when using the “multi line “ rams I have seen higher failure rates down to the softer appearance although quoted as 90 durometer
    Braided line ram failures are much higher given that most of the time the operations have already gone wrong, however the actual rams failing tend not to be accurately recorded as a barrier failure as the well ends up being killed or shut in until remedial operations take place

    Hope that helps somewhat
    Gordon Duncan
    Thailand
    Sent from my iPhone


    Original Message


  • 4.  RE: wireline/slick line BOP reliability data

    Posted 14 days ago

    Thanks Duncan for the support. That's will help for sure.

    Carlo


    Original Message


  • 5.  RE: wireline/slick line BOP reliability data

    Posted 14 days ago

    Thanks for the suggestion Bob. I contacted Sintef ;they should have something. There are also some statistics published by the norvegian Havitil authority but full dataset are available only to Operators in Norway.


    Original Message


  • 6.  RE: wireline/slick line BOP reliability data

    Posted 13 days ago
    Edited by Faisal Al-Nakeeb 13 days ago

    Hello Carlo,

    You can try the following (some already mentioned by others):

    EXIDA / FMEDA Databases

    TAP Report 779

    Oreda

    Thanks and regards,

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    FaisalAl-Nakeeb
    Well Integrity Team Leader

    TwinHorizon Solutions
    www.wellintegrity.org
    www.wellintegrity.ae
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