Wide, flat bed trailer, mounted on pair of crawler treads, solves problem of location switch of derrick for relatively shallow drilling; stripped only of crown block and drawworks, derrick is lifted and centered by trailer, and towed to new site by same tractor which spots hauling unit below specially constructed derrick floor section.


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    Title :

    Special trailer speeds Derrick moves


    Additional title:

    World Oil


    Contributors:

    Published in:

    World Oil ; 127 , n 6


    Publication date :

    1947


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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