A part of the RaptR™ Liner Cleanup System the RaptR™ Relockable Safety Swivel is a downhole safety device which prevents twist-off of the drill pipe due to over-torque which can be relocked when desired.

Features

External shear pins can easily be removed or added on site to achieve the desired over-torque shear rating
Upper Bearing and Lower Bearing allow rotation in compression and tension
Internal circulation system keeps the Lower and Upper bearings cooled and lubricated when in use
Simple ball activated relocking method to relock the swivel during operations to allow full string rotation if required
Compatible with other OWS ArmRdilloTM WellBore Clean-up tools

Benefits

Cost savings
Maximize chemical clean-up and displacement efficiency by allowing high speed rotation inside the production liner
Increases Well Productivity
A properly executed wellbore clean-up removes fine debris which can block screens and pore throats reducing well productivity
Reducing Non-Productive Time
Prevents unnecessary fishing jobs

Applications

Allows circulation above a Packer or other similar type tool
Allows circulation above a packed off Wellbore Filter Tool
Jetting, Circulating, Tripping Dry Pipe
Drillstring BHA relief valve if bit gets plugged

Operational

Determine the torque protection setting of the RaptR™ Relockable Safety Swivel and add or remove the shear screws at surface as required
In the event of excessive torque in the lower string below the RaptR™ Relockable Safety Swivel the shear pins will shear which activates the swivel
With the swivel activate the internal impeller system continuously flushes the bearings to keep them cooled and lubricated. The swivel works in both tension and compression
If desired the RaptR™ Relockable Safety Swivel can be re-locked by dropping an activation ball and pumping down to a ball seat. By applying pressure the spring-loaded locking mechanism is cocked. Increasing the pressure blows the ball seat to re-establish flow to the bit and relocks the swivel