Splined Expansion Joint

 

Splined Expansion Joint-Model N-1

The splined expansion joint is designed for use in single-string

completions to compensate for tubing movement. The tool

provides 10 ft (3.045 m) of movement and uses rugged

bonded seals for reliable continuous service. The

telescopingaction permits the tool to be used as a bumper

subor jar when retrieving the installation.

 

 

Advantages

  •          Shear screws easily added or removed to adjust shear value
  •          Tool locks in fully extended, fully collapsed or mid-stroke position
  • with shear screws
  •          Full-length keys provide transmission of torque through
  • full length of travel
  • Metal goods suitable for H2S service per NACE Standard MR-01-75

 

 

Splined Expansion Joint Specification
Tubing Size Max. OD (in) Min. ID (in) Thread Connection Available Stroke (ft) Pressure Rating (Psi) Torque Rating (ft/lb) Tensile Rating (lb)
5 1/2 7.480 4.776 Premium 10-13-15-20 5000 5500 220000
4 1/2 5.736 3.920 Premium 10-12-15-20 5000 4000 170000
4 1/2 5.968 3.75 Premium 12-15-20 10000 4000 170000