The field proven WellPartner Constant Tension Table (CTT) system is designed for maintaining the Workover riser system in constant tension during subsea drilling operations from a jack-up rig.
The CTT is located on the rotary table and interfaces a Landout joint, being the integrated part to the workover riser system.
The upward force is provided by 4 hydraulic operated cylinders, which react against a load bearing plate in the work frame.
The hydraulic jacks are operated by a local control unit which records the CTT elevation height and applied top tension vs time. Alarms can be set and the operational data can be downloaded after the operation.