A down-the-hole hammer tool that is actuated by drilling mud has been tested recently in simulated borehole conditions. Improvements in drilling rate on the order of 20% to 300% have been noted during these tests, depending on drilling conditions. Further laboratory testing has shown a potential improvement in these benefits by changes to valve timing. In addition, bit design and component life issues are discussed.


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    Titel :

    Rotary-percussive drilling engine


    Beteiligte:
    Pixton, D.S. (Autor:in)


    Erscheinungsdatum :

    1998


    Format / Umfang :

    Seiten



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Datenträger


    Sprache :

    Englisch




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