Saturday, 13 February 2016

Downhole Motors - Positive Displacement Motors : Navi-Drill Mach 1 P/HF

Navi-Drill Mach 1 P/HF
The Navi-Drill Mach 1 P/HF (High Torque/High Flow) is a positive
displacement motor that develops high torque at the bit at relatively low to
medium speed range (80-310 RPM). This makes it ideal for directional
applications, drilling with high weight-on-bit, or in areas where formations
require high torque due to specialized PDC bits.
The Navi-Drill Mach 1 P/HF motor has a multi-lobe rotor/stator
configuration which generates more torque than other motors.
A unique bearing assembly and improved elastomer compounds have
increased the Mach 1 P/HF’s hydraulic horsepower and extended its
operating life. The rotor/stator design allows a larger than normal flow rate
to be pumped through the motor, generating the higher torques. There is a
rotor nozzling system that allows the motor to run over the higher
maximum flow rate without exceeding maximum recommended motor
speed. These higher flow rates offer improved hole cleaning and bit
hydraulics.
The Navi-Drill Mach 1 P/HF offers the AKO (adjustable kick off sub)
which is rig floor adjustable between 0° - 2.75°, giving a BUR up to
12°/100 ft. Included in the design is a unique U-joint assembly which
allows the higher torque to be transmitted from the motor section through
the bearing assembly and to the bit.
Although primarily a directional performance drilling motor, the Navi-
Drill Mach 1 P/HF can also be used for straight-hole drilling.

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