Adjustment Sub
The Dril-Quip Adjustment Sub is a telescoping casing joint that precludes the need to set slip-type casing assemblies in platform wellhead systems. It is a solution for stuck pipe in subsea wellhead drilling applications while maintaining the pressure integrity of the casing string.
The Adjustment Sub features:
- Provides adjustment of the casing string length between two fixed points
- Allows transmission of left and right torque mudline equipment with wash-out operations
- Available in a wide range of sizes and with various adjustable strokes
- Engineering analyzed for strength and pressure integrity
- Metal-to-metal seals provide pressure capacity compatible with the casing
- Available for standard or H2S service
- Full bore design
- Sized for specific applications; Model ADJ-HP supplies high-pressure integrity while model ADJ-ST supplies a stronger load carrying capacity
- Field-proven performance
- Contact your Dril-Quip representative for the Adjustment Sub that best suits your application