An important piece of equipment to transmit the torsional energy from the rotary table to the drillstring and ultimately to the bottom of the hole.
Most of the world’s drilling rigs rely on this important piece of equipment to transmit the torsional energy from the rotary table to the drillstring and ultimately to the bottom of the hole. The kelly’s ability to perform this function over a prolonged period of time is a result of the mechanical properties of the steel and the specifications to which it is manufactured. (more...)