Due to their fully concentric drive train design, Neyrfor turbodrills minimize damage to downhole equipment from adverse drilling dynamics and thus reduce unscheduled/unplanned events duch as tripping to replace the damaged BHA component (e.g. MWD and LWD sensors)

In turbodrilling the bit is isolated from damaging drill string dynamics/vibrations by the turbodrill itself.  The turbodrill is designed with low friction bearings such that, although mechanically coupled, the system allows near perfect hydraulic decoupling of the bit from the drillstring.  This unique feature also allows the turbine RPM to slow and even stall should the bit-formation interaction create fleeting torque surges. 

The polycrystalline diamond compact (PDC) bearing system is capable of absorbing tremendous loads for long periods of time and allows the turbodrill to deliver maximum mechanical power at enhanced level of efficiency due to low frictional loss within the tool.

With options for all-metallic construction, the Neyrfor turbodrill is able to withstand the extreme demands of HPHT environments and maintain optimum power output throughout the run.  With elastomer components replaced by all-metallic components within the drive train and bearing sections, there are no environmental or temperature constraints.  Further, this metal construction allows the use of exotic and chemically enhanced drilling fluid systems, such as acid washes, two-phase gaseous fluids and natural crude based system without deterioration in output mechanical power, reliability or resultant performance.