UniLOT - Universal Lockout Tool

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The Oilenco UniLOT (Universal Lockout Tool) provides a means to permanently lock-open a tubing retrievable subsurface safety valve (TRSSSV) so that it remains open with no obstruction from the flapper.


The mechanical UniLOT locks the flow tube in a position that prevents the flapper from closing once the control line pressure is bled off.

By running the Oilenco UniLOT, downward jarring is used to deform the walls of the flow tube, which permanently prevents travel back to the original position and keeps the bore of the TRSSSV clear.


  • Does not rely on existing lockout profiles
  • Versatile - suits a wide range of safety valve models from different manufacturers
  • Incorporates a flapper check tool providing verification that the flow tube is permanently locked open
  • Deformation and verification status of the flow tube completed in one run


For more information regarding the UniLOT universal lockout tool, call Oilenco on +44 (0)1224 548700, email info@oilenco.com or click the 'Enquire Now' button below to complete the enquiry form.