| 摘要 |
A riser tension protector and coiled tubing lift frame assembly including same for use as a backup heave compensator is described. The assembly includes a frame having an upper frame section adapted for attachment to a top drive system and a lower frame section adapted to interface with a flowhead assembly; and a pair of pneumatic cylinders spaced apart from one another. The pneumatic cylinders have a respective cylinder barrel and a piston rod translatable therein, a free end of the piston rods being fixed to the upper frame section and a lower end of the cylinder barrels being fixed relative to the lower frame section. |
