·Welded :  ERW,    LSAW,  SAW

Sizes (Inch)

5" 5 1/2" 6 5/8"7"^14"

Features

·Designed for high performance and versatility.

·Minimizes galling risk   while improves sealing performance stability.

Application Condition

· Hostile environments

· Great depths

· Highly deviated holes

 Benefits

·Excellent gas-tight sealing under combined loads

                Main advantage_Energized metal-to-metal   seal

a. The seal geometry   protects against galling.

b. The seal integrity   remains constant after repeated make-ups and break-outs.

c. It offers excellent   gas-tight sealing, under even the most severe combined loads, as encountered   in deviated or

Long horizontal wells.

               Main advantage_ Reverse Angle Torque   Shoulder

a. The positive torque stop   which allows for accurate power-tight make-up and minimizes hoop stresses in   the connection.

b. The "wedge"   effect caused by the reverse angle gives the connection superior structural   strength.

c. The shoulder design is   optimized in order to resist adverse conditions such as combined compression   and external pressure or combined bending, compression, and torque (see the   corresponding gas-tight VME performance envelopes for tubing and casing   sizes).

               Main advantage_Improved hook thread design

a. A modified hook thread   profile with 3° reverse angle on the load flank not only provides the   connection with superior tension strength but also increases its resistance   to compression.

b. The excellent structural   strength including increased bending and compression resistance makes this   connection especially suited for highly deviated and long horizontal wells'.

c. Optimized thread geometry minimizes the risk of galling, even when   thread lubricants are poorly applied.

              Main advantage_Coupling design

The 100% efficient connection performance has been engineered through   factors such as: the coverage of the vanishing threads, long internal   shoulder, and coupling critical cross sections greater than those of the pipe   body

             Main   advantage_Streamlined internal profile

A pin ID chamfer, tight   tolerances on the coupling center and a long shoulder combine to minimize   turbulence and energy loss inside the connection for high-velocity gas flows.