HG-R - Retrofit Wellhead Tubing Hanger Neck Seal

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Leaking Wellhead? Fix it fast & permanently with the HG-R

Page last modified
February 22 2024
  • Failures on Elastomeric Tubing Hanger Neck Seals on Wellhead systems are commonplace.
  • Seals are either re energized or injected with special materials in the hope of repairing the failing seal.
  • Failures cause hydrocarbon production to be reduced or stopped completely.
  • Expensive workovers required to replace Tubing Hanger and Head Adapter with alternative designs.
  • POS GRIP® “ Technology used to replace existing failing seals with a metal to metal sealing solution.
  • Repair provides much better integrity and long term sealing capability against exiting elastomeric.


  • Retrofit system providing metal sealing solution to leaking Tubing Hanger Neck Seals
  • No need for expensive Full Workovers
  • Production can be increased or restarted following retrofit.
  • Seal can be tailored to suit specific requirements, i.e. no control lines, 1 or 2 control lines.
  • Designed to suit specific pressure requirements.
Pros & Limitations
No need to stop production
No need for expensive full workover
Fast and simple installation
Using proven sealing technology
Modular set-up
Short wellhead maintenance to install
Specification Title Specification Description
Can be designed to fit a range of sizes & pressure
Modular technology
Extend the life of production
Long life sealing technology
Reduce cost repairs
No requirement for expensive repairs to eliminate leak


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Technology Readiness Level


Development Technology demonstration Mature / Proven
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Plexus specialises in the design and supply of wellhead products to the global oil and gas industry. We believe innovative technology needs to work hand in hand with outstanding service. We do what it takes to deliver wellhead equipment which is safer, and is proven to save time and money. Operating in more than 20 locations, with four global offices, we have the capability and capacity to deliver and install our wellhead systems in any location worldwide.

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