The Kelly is a major component of a drilling rig. It makes everything jell. You can kind of think of it as the spine of the drill rig. It joins the above ground equipment with the drill string below. Without the Kelly, the drill rig simply couldn’t do its job properly. Now, let’s find out more about what the Kelly really does!
The Kelly is a long pipe with a hollow center. It transmit power from the rotary table to the drill string. The drill string is rotated by the rotary table as it digs down. The Kelly also allows drilling fluid to be pumped down into the drill string and back up to the surface. This fluid brings rock fragments along with it.
When it’s time to begin drilling, the Kelly bar attaches to the top drive or kelly bushing on a drill rig. The kelly curves to the rear and hangs off the drilling rig in the kelly bushing when the Kelly is raised. As the drill rig begins its rotation, the Kelly bar transmits that rotation down to the drill string. That helps it burrow into the ground. The Kelly bar also prevents the drill string from being rotated into a corkscrew shape during the drilling.
Like a machine, the Kelly bar requires maintenance to achieve peak performance. Check frequently to determine if it is worn or bent. Any worn or damaged parts should be promptly replaced to prevent accidents. These steps allow the Kelly bar to last longer and function properly.
S afety and Efficiency in DrillingIMPLEMENTATION OF SAFE DRILLING AND EFFECTIVECompilation of information byRunning Title: Safedrilling - How it Could BeIngredients of safe and efficient drilling 1. SPEED Drilling in well Windows SedcoForex#, 1997 Ingredients of safe andKeywords: safe drilling, effective drilling, wellWindows, real time monitoringEXECUTION OF SAFE AND EFFICIENT DRILLINGIn addition to meeting the requirements for speedydrilling in the well windows, real time monitoringof well conditions is used during the drillingoperation to ensure such operations are not onlyfast, but also safe.
The appropriate drill rig Kelly parts can help it to work better and more safely. Items such as shock subs, stabilizers and lifting plugs, are used to extend the life of the Kelly bar. In addition, they keep the drill string from buckling and make drilling easier. A correct size and type of parts are essential to protect against accidents during drilling.
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