The TPS TOPSEAL threaded and coupled connection for Tubing & Casing is specifically addressing the challenges imposed by today ́s most severe downhole conditions. TPS TOPSEAL is compatible with Vallourec’s VAM TOP and features an enhanced premium connection design especially conceived for any kind of critical conditions where Well Integrity Assurance through fluid tightness under ex- treme combined loading is expected regardless of well profile (vertical, slanted or horizontal) or operating conditions (onshore, offshore) over the whole lifetime of the well.

While not exclusive to the mentioned below, the TPS Topseal T&C Connection is best suited for use as:

  • Production String for Oil and Gas Wells (Tubing/Casing)
  • ntermediate Casing
  • Work String (Well Testing, Fracturing Jobs, Well Interventions)
  • Sour and H2S Service (see Range of Applicability)

Main Features

  • By means of a metal-to-metal seal, the TPS Topseal Connection offers 100% PBYS rating for internal pressure, collapse and tensile capacity
  • 100% of compression capacity for tubing (2 7/8“ – 4 ½“ OD) and 60% for casing (5“ – 5 ½“ OD)
  • Improved coupling design with smooth internal profile that eliminates the risk of flow turbulences during produc- tion or cyclic operations (e.g. fracturing jobs)
  • Enhanced thread profile that improves connection per- formance under combined loading (no thread jump-outs, better connection stabbing)
  • Rugged seal design that ensures the sealing capacity of the connection even after repeated Make Up and Break Out on the rig floor


  • Standard API grades are available; further grades for special service upon request
  • Special options (special bevel/clearance, specific drift requirements)
  • Internal coating

The TPS TOPSEAL tubing can be produced in all API standard range lengths. Customer-specific lengths, pup- joints, X-overs and other accessories are also available. We keep the most frequently demanded sizes and grades on stock ready for immediate deliveries.

Overview of the available materials
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Care and Use

Running Procedure

Field Inspection

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