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Top Drive technology to drill oil and gas installations
Used to rotate the drill column during the process of drilling oil and gas wells , top drive east engine, which is usually suspended from the crane drilling facility . Being located in the cylinder instead of folding, it has the power to over 1,000 hp, turning an axle bolt drill pipe column. It replaces the rotary table, easing manual labor in the drilling process, also eliminating many of the risks associated with it. http://oilandgasroyalties.tumblr.com/
A top drive is composed of one or more engines, electrical or hydraulic connected to the column through a short section of pipe known as up. Suspended from a hook under the winch motor can move up or down along the crane.
Often, rotary table is equipped with pliers to prevent slipping column in the well drilling. Used for increased work safety and efficiency, top drive has a number of advantages: Top drive 3 can drill pipe sections connected simultaneously, instead of only one tube at a time. Top drive usually decreases the frequency of blocking pipes, which saves time and reduces the operating costs.
Top drive allows drillers to assemble or disassemble easier screed pumps or by screwing and faster dessurubarea column pipes. Top drive is preferable to operations with greater depth or drilling directional wells.
Top Drive eliminate much of the manual work that was necessary in the past for the drilling, thus reducing the risk of injury and increasing safety during drilling. Often, top drives are fully automatic, providing control of rotation and torque, and also controls the weight of the screed.
However there is some difference between top drives for onshore and offshore those like that onshore installations, top drive moves up and down on it to prevent rocking of the waves offshore. https://www.youtube.com/watch?v=iJv2HbeCwc8
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