Premium connection

Premium Connection is a high-performance, engineered thread connection system used primarily on OCTG (Oil Country Tubular Goods)—specifically, casing and tubing strings. They are designed to outperform standard API (American Petroleum Institute) threads in demanding well environments.

Key Features:

• Superior Gas Tightness: The core feature is its metal-to-metal seal mechanism. This independent sealing system ensures reliable containment of high-pressure fluids and gases, preventing leaks in critical applications like high-pressure gas wells. It does not rely solely on thread compounds for sealing8.

• High Strength: Premium connections are designed to maintain joint strength equal to or greater than the pipe body itself. This is crucial for withstanding the extreme tensile, compressive, and bending loads encountered in deep, deviated, or extended-reach wells.

• Enhanced Torque Performance: They are optimized for high torque during make-up (installation), which is essential for ensuring a proper seal and for running strings in challenging well paths.

• Application-Specific Designs: Various types are engineered for specific challenges:

  • High Pressure/High Temperature (HP/HT) Wells

  • Sour Service (environments containing H₂S and CO₂)

  • Deepwater and Ultra-Deepwater Wells

  • Extended-Reach Drilling (ERD) and Horizontal Wells

Examples of International Premium Connection Brands:

• VAM® (Vallourec)

• Hydril™ CS, Wedge Series (Tenaris)

• FOX®, BEAR (JFE)

• Blue™, TENERO (Tenaris)

Examples of Domestic Premium Connections (China):

• TP-CQ (EX), TP-JC, TP-G2 (TPCO - Tianjin Pipe Corporation)

• BGT2, BGT3 (Baosteel)

• BJC-2, HSM-2, CBS3