A quick les­son in drilling en­gi­neer­ing ter­mi­nol­ogy

The Shed - - News — A Shed Invention -

A ‘drill string’ on a drilling rig is a col­umn, or string, of drill pipe that trans­mits drilling fluid (via the mud or foam pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely ap­plied to the as­sem­bled col­lec­tion of the drill pipe, drill col­lars, tools, and drill bit.

In the oil and gas in­dus­try, the term ‘wire­line’ usu­ally refers to a ca­bling tech­nol­ogy used by op­er­a­tors of oil and gas wells to lower equip­ment or mea­sure­ment de­vices into the well for the pur­poses of well in­ter­ven­tion, reser­voir eval­u­a­tion, or pipe re­cov­ery. There’s a lot of pres­sure in­volved. The drill pipes are screwed to­gether at a torque of 40,650Nm.

Be­low: Tools be­ing low­ered through the valves

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