News & Events
The WWT Non-Rotating Silencer assembly is
placed in or near the BHA to dampen downhole vibrations, reduce
stick-slip, lower torque, and provide more efficient transfer of
mechanical energy from top drive to bit. The WWT Silencer provides
these benefits by using a non-rotating stabilizer with a low
friction fluid bearing design. The non-rotating sleeve is
manufacturing using a proprietary vibration absorbing polyurethane
material bearing encapsulated around the steel or non-mag mandrel.
The non-rotating sleeve is designed to be a sacrificial element,
absorbing vibration energy from the drill string, thereby
protecting critical BHA components. The WWT Silencer is designed
as a fail-safe product without any fastening hardware or metallic
parts within the non-rotating sleeve. The non-rotating
polyurethane sleeve is fully drillable with nearly any kind of
bit. If a non-rotating sleeve were to fail, the sub mandrel is
essentially a short piece of HWDP, which allows operators to
continue drilling ahead rather than tripping for a failed BHA
component.
BENEFITS:
Interior geometry provides hydraulic and
elastomeric dampening of axial and lateral vibrations.
Hydrodynamic bearing reduces torsional
friction, thereby mitigating torsional oscillations.
Combined benefits results in improved
drilling efficiency with increased BHA & bit life.