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What is an upset and do you ne ...

Posted on: May 25, 2012 By: admin | 2 Comments
If you are drilling deep with a mud rotary or perhaps drilling 5,000 feet for natural gas, then you are familiar with the term “upset”. Sometimes elevator shouldered drill pipe, where the tool joints are larger in diameter than the tubes, are referred to as upset drill pipe. In reality, drill pipe is considered upset when the tubes are upset prior to welding. Upsetting is a forging process that makes for a thicker wall on the tube ends. The tube ends are heated to a near liquid state. The heated end is then placed in the upsetter ... Read More