A man wearing a welding helmet is focused on welding a metal pipe in a workshop setting.

Tieback liner

Combat wear, corrosion, and pressure anomalies to extend the life of your well casings

Tieback liner

A tieback liner is a section of liner that is run from a liner hanger back to the wellhead after the initial liner and hanger system have been installed and cemented.

Tieback liner applications are:

  • to repair damaged or worn casing above the existing liner
  • to ensure casing integrity upon completion of drilling operations - Installing a tieback casing liner at completion of drilling operations provides a casing within the well that has not been exposed to rigorous of drilling operations
  • to provide added casing protection against corrosion or pressure anomalies

Utilizing the WEA for Tieback Liner provides a robust and reliable solution for tieback liner applications compared to traditional solutions. It enhances well integrity, reinforces the existing casing string, and ensures the stability and integrity of the wellbore, ultimately optimizing well performance.

Close up of a Welltec completion tool showing slotted metal sections and precision engineered components for zonal isolation in a wellbore.

Welltec® Expandable Anchor (WEA) for Tieback Liner

The design of the WEA for Tieback Liner minimizes subcomponents, ensuring reliability and efficiency while simplifying well construction. The WEA enables reciprocation, circulation, and/or rotation during deployment.

The Welltec Expandable Anchor (WEA) for Tieback Liner can be run as a standalone, or in combination with our proven metal expandable packer technology.

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Pedro Henrique Garcia Bazan, Sales Director – Well Completions, standing in front of a Welltec display on innovative energy technology.
Pedro Henrique Garcia Bazan
Sales Director - Well Completions

With 15 years experience in completions, pre-salt projects, R&D and business development. Based in Brazil, Pedro is dedicated to support the clients responding quickly, and providing solutions and engineering in Interventions and Completions intending to add value to the customer needs.

Gary Lawson, Global Sales Director for Well Completions Solutions, standing in front of a Welltec display with a professional smile.
Gary Lawson
Global Sales Director, Well Completions Solutions

With over 22 years’ experience in well intervention, completion operations and industry leading technologies. Gary has held various management roles within operations, sales and business development and utilises his experience to support our clients to deliver solutions by taking a collaborative approach to identify the correct technology needed for each specific application and always ensuring to maximise efficiencies when delivering the solution.

Cross-section of subsurface rock layers showing a Welltec tool deployed in the wellbore, highlighted with green rings for zone isolation.
Cross-section of subsurface rock layers showing a Welltec tool deployed in the wellbore, highlighted with green rings for zone isolation.

Maximizing reservoir contact

We help maximize reservoir contact to optimize productivity and maintain maximum well delivery. Our unique completion technologies provide a new perspective to drilling and completing wells, adopting a holistic approach which adds value continuously over the life cycle of a well.