Well Key Dimple 00000 JPG

Well Key®

Dimple tool


The Well Key® Dimple Tool is designed to permanently lock open surface controlled subsurface safety valves in a single run. Running into the hole in a slick configuration, it is opened at depth and automatically engages with the hardware for which it was set-up for. Once engaged, the Well Stroker® provides the force to shift the hardware in the required direction and position.

  • Challenge
    Downhole hardware
  • Applications
    Lock SSSV sleeve in position
Well Key 360 00000

Case highlight

Downhole hardware

An operator experienced several faulty subsurface safety valves in offshore Denmark wells. Specifically, they experienced problems locking open 5-1/2” downhole safety valves (DHSVs)...

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The Well Key brings a high degree of efficiency to completions as it is designed to shift multiple sliding sleeves and open / close valves in a single run. With pinpoint accuracy, the Well Key provides the flexibility to open any type of downhole completion valve. And its active hydraulic control and high expansion ratio ensures full integrity of downhole jewelry and reduced risk since the Well Key is only opened when the tool reaches target depth.
Well Key Vert 00000
Well Key Hori 00000


  • Locks SSSV sleeve in position


  • Allows transfer of high, controllable force
  • Passive fail-safe system
  • Rugged design allows for multiple repeated actuations
  • Bi-directional in same run
  • High expansion ratio
  • Ability to control position via surface read-out
  • Wide range of sizes
  • Universal


  • Force applied directly to target
  • Fewer runs
  • No jarring required
  • Large range of ID’s accessible
  • Accurate depth control
  • Reduced risk of damage to well hardware


Tool OD 3 1/8” 3 2/5”
Length 11 ft 12 ft
Completion ID 3.2” 6.2”
Weight in air 160 lbs
Max. well pressure 25,000 psi
Max. well temperature 302° F
Tensile strength 42,000 lbs
Compressive strength 50,000 lbs
* Dependent upon configuration