TCO E-Trigger

The TCO E-trigger was developed to activate downhole devices, and can be utilized alone or in conjunction with a mechanical trigger system for redundancy and an extended operational window. The E-trigger can be activated through pressure cycles or by using a pre-set or pressure-activated timer. TCO's E-trigger has been developed to fit all plugs in the TDP-3 range, and is most commonly implemented with 833 x 575 and 833 x 500 plugs.

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The TCO E-trigger was developed to activate downhole devices, and can be utilized alone or in conjunction with a mechanical trigger system for redundancy and an extended operational window. The E-trigger can be activated through pressure cycles or by using a pre-set or pressure-activated timer. TCO's E-trigger has been developed to fit all plugs in the TDP-3 range, and is most commonly implemented with 833 x 575 and 833 x 500 plugs.

Functionality

  • The E-Trigger will establish the pressure at depth as reference zero when the pressure is stabilised within limits
  • The E-Trigger will pick up pressure changes in the wellbore through the plug communication sub
  • If the software recognizes the pressure pulse as a cycle, it will start the timer/counter
  • If the pressure and time parameters correspond to the pre-set values in the software, the trigger will activate
  • Activation is performed by unlocking the pressure activated firing pin

Technical Data 

  • The E-trigger consists of high-end components
    • Circuit board with fail-safe and redundant hardware
    • High temp micro controller
    • High temp power source
    • HPHT pressure sensor
  • Downhole life at 140 °C is 40 days
  • Downhole life at 125°C is 180 days

Benefits

  • Saves rig time
    • Plug can be cycled open more quickly than when using a conventional mechanical counter
  • Improved operating window
  • Less pressure required for cycling remote removal of plug
  • Easy to change trigger parameters by USB communication port
  • Flexible system
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