Subsea Syringe

The Oilenco subsea syringe is a downhole safety valve chemical treatment system that provides a method of precisely spotting a concentrated chemical solution between the upper and lower seal bores of a tubing retrievable subsurface safety valve (TRSSSV).


  • One run system
  • Helps restore functionality of a downhole safety valve
  • Ability to carry a large volume of fluid
  • Flow tube can be exercised whilst soaking
  • Dedicated for subsea operations

Setup and filling of the syringe takes place at surface. Run in via slickline, it lands off on the TRSSSV no-go before compression of the syringe deploys fluid across the safety valve.

Expelling enough chemical to fill to the top of the safety valve, the solution is left to soak. A further stroke down can be completed to expel more chemical, refreshing the solution. This can be completed multiple times in the same run.

Due to its ability to carry a large volume of chemical, the subsea syringe is designed as a one run solution ideal for subsea applications, minimising the number of runs in the well.

For more information on the Oilenco subsea syringe, contact the Oilenco team on +44 (0)1224 548700, email or click the 'Enquire Now' button below to complete the enquiry form.

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