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Drill string and components Table DS-1 - IADC.org

Drill string and components Table DS-1 - IADC.org

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NC Numbered Connection Figure DS-1: Weld-on tool joint. The flash-welded tool joint, introduced in 1938, was the industry’s first weld-on tool. Inertia welding was introduced in 1974 and continuous-drive friction welding in 1978. Table DS-3: Interchangeability chart for tool joints. NC NC26 NC31 NC38 NC40 NC46 NC50

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Download Drill string and components Table DS-1 - IADC.org


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