Subsea Well Intervention Equipment

The EIA series subsea well control equipment (WCE) is an integral component of the lower wellhead riser package.


EIA actuators are well-control components used during a subsea well intervention.

It features a single-line hydraulic system and an automatic, wedge-type, "autolock" actuator system. The autolock system secures the rams in the closed position in the event of a hydraulic failure or an emergency situation that requires disconnecting from the subsea wellhead.

There are two sets of rams: blind shear rams and grip seal rams. Blind shear rams are designed to cut the coiled tubing and/or wireline to form a blind seal. Grip seal rams are designed to grab, hold, and seal around the coiled tubing.

Each EIA BOP can be built to your specific design requirements, including a dual-bore valve block with a combination of blind shear and grip seal ram assemblies. The combi rams offer increased functionality and the ability to use a wide range of coiled tubing and wireline sizes in a field-proven, compact design. All pressure ratings and service applications are available, including certification for use in the North Sea.


  • SSR or GSR configuration for coiled tubing and wireline
  • 3,000- to 5,000-psi hydraulic operating pressure
  • Single or dual circuit
  • Hydraulic-ram change (quick-change rods)
  • Metal-to-metal bonnet gaskets
  • Hydraulic wedgelock
  • Ram- and wedgelock-position indicators
  • Hyperbaric tested to 10,000 ft
  • Actuators and seals qualified from 32 to 311 °F

Subsea Well Control Equipment Specifications

Model Bore Working Pressure Tubing Range
EIA56 5.12 in. 15,000 psi 1.25 to 3.50 in.
EIA74 7.06 in. 10,000 psi 1.25 to 3.50 in.
EIA74 7.38 in. 10,000 psi 1.25 to 3.50 in.
  • Texas Oil Tools Subsea Well Intervention Equipment Catalog

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