DOWNHOLE MULTIPLIER FOR HIGH-FREQUENCY DIAMOND DRILLING OF DEEP EXPLORATORY WELLS
V. I. Sklyanov
Norilsk State Industrial Institute, Norilsk, Russia
Keywords: Горная порода, алмазный породоразрушающий инструмент, частота вращения, механическая скорость бурения, генератор механической энергии, синусошариковый роторно-мультипликаторный бур, заякоривающее устройство, Rock, diamond rock-cutting tool, rotational frequency, mechanical drilling speed, mechanical energy generator, sinusoid ball rotary multiplier drill, anchoring device
Abstract
The method of rock failure stimulation in diamond drilling of deep wells is considered. To increase the rotational frequency of a rock cutting tool, a fundamentally new kinematic diagram of a sinusoidal ball rotary multiplier drill is proposed. The resulting reactive moment and the required pressing force for the braking shoe are theoretically justified. Using the rotary multiplier drill, it is possible to drill in the conditions close to optimal and increase the mechanical speed by 1.5-2.0 times. Equipping the rotary multiplier drill with special removable units allows using it in drilling wells with removable core receivers.
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