Premium OCTG Casing Tubing Connection / RTT-16h6

Structure

• Connection is designed with extreme-line thread without coupling.

• Joint external upset

• WSP-IF adopts straight, non-interference thread style. Loading surface angle is 7.5°, stabbing surface angle is 20°. WSP-IF8 is 8TPI, IF6 is 6TPI, IF4 is 4TPI.

• Metal-to-metal internal pressure seal is rated at 100% of the pipe body. The 100% external pressure seal is created at the torque shoulder.

• External shoulder designed with -60°negative angle shoulder, internal shoulder is rectangle shoulder.
• Surface treatment: internal and external thread needs phosphate treatment.

Performance

• The two-step, non-interference thread style provides WSP-IF with very good

galling resistance.

• H2S service suitability is ensured by combining the low stress profile of non-interference threads with fixed make-up position control of a shouldered connection.

• The 100% external pressure seal is created at the torque shoulder. Metal-to-metal internal pressure seal is rated at 100% of the pipe body.

• 100% pipe body tension strength is produced by machining pin and box on a hot-forged upset. Connection critical areas exceed the pipe body area.

• High torque strength is provided by the reverse angle shoulder. The shoulder

also provides excellent resistance to compression and bending loads.