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19 February 2013, 00:00
The Vermeer D36x50DR Series II features a rod-in-rod design with dual threaded makeup. With a rated rotational torque of 2033.7 Nm, the inner rod powers the downhole tri-cone as the outer rod provides steering and backreaming rotation. The dual threaded rod design also enables a drilling fluid course between the inner and outer rod, as well as through the inner rod, to help meet the volume requirements needed for efficient removal of the cuttings. An automated rod makeup and breakout system can be utilized to reduce manual operator interface, though it is equipped with a manual override for operators who prefer it. The D36x50DR Series II also employs an onboard rod carrying capacity up to 152.4 m of Firestick drill rod. For downhole performance throughout the entire bore, the 104.4 kW D36x50DR Series II drill features 17,236.5 kg of thrust/pullback and 6779.1 Nm of rotational torque. All configurations are available with a rated 265 L/min drilling fluid pump.
Source: Vermeer Corporation
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