Pressure Control Equipment | Subsea | Schlumberger


Complete systems to maximize safety and efficiency

BOP controls, annular and ram-type BOPs, pipe and shear rams—ideal for drillships or semisubmersible rigs operating around the world.

Cameron Drilling service photo with subsea BOP stack

Annular BOPs

Choose from a variety of field-proven designs to fit your desired drilling application.


Annular BOP

Close on drillpipe or large tubulars without reducing operating pressure.

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Drill-Thru Connectors

Connectors for BOP stacks.


Adaptable collet connector

Combine the versatility and capacity of offshore drilling connectors with the ability to work on any wellhead.

HCH4 Collet Connector

Engineered specifically to fit mandrel-style hubs

Allows the HC-style connector to lock onto an H4 wellhead and maintain a direct load path.


High-capacity collet connector

Withstand separating forces in offshore drilling environments.


Deepwater, high-capacity collet connector

Stand up to the high loads encountered in ultradeepwater applications.

Model 70

Collet connector

Form a tight seal while withstanding bending stresses and separating forces.

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Deepwater Integrated MPD Riser Joint

Higher service quality and lower cost of ownership.

Marine Drilling Riser

Equip your offshore operation with complete riser systems—from the drillfloor to the BOP stack.


Direct wellbore fluids away from the immediate drilling area on offshore rigs.

BOP Control Systems

Drilling control systems for land, platform, and subsea applications.

Mark IV-HA

High-availability compact subsea multiplex control pod

Safeguard your operations against costly downtime with enhanced reliability and availability.

Subsea Pressure Intensifier

For new-build rigs or retrofit

Maximize the working pressure of subsea mounted accumulators.

Mark III

Subsea multiplex control pod

Increase modularity and simplify maintenance for greater subsea command.

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Shear Rams

Provide dependable isolation or sealing of the wellbore.


Off-center tool joint shear rams

Shear tool joint hardbanding and off-center tubulars.


Cable double-V shear rams

Increase shear blade width compared with standard version.

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Pipe Rams

Form a reliable seal on tubulars.

Pipe Rams

Fixed-size sealing of tubulars

Form one-half of a ram cavity's seal with the packer, top seal, and ram body acting in unison.

Variable-Bore Rams

Variable-bore rams that seal on a wide range of pipe diameters

Enable sealing a standard BOP on several different pipe diameters.

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Ram-Type BOPs

Contain wellbore pressure during critical control operations.


Offshore ram-type BOP

Extend proven high-quality, reliable BOP design expertise to a lighter-weight design.


Compact, offshore ram-type BOP

Combine engineering simplicity, footprint and operational savings, and superior reliability.

25,000-psi Ram-Type BOP

Ultrahigh-pressure BOP

High-pressure completion performance in 25K pressure environments.

Bonnet Assembly Options

Designed specifically for our equipment

Employ more closing force with greater certainty in a smaller footprint.

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Drilling Manifolds and Chokes

Improved pressure and flow control in onshore and offshore applications.

Cement Manifolds

Designed and manufactured to your requirements

Divert flow of cement slurry during cementing operations.

Choke and Kill Manifolds

From noncorrosive to extreme sour oil and gas

Manage well pressure fluctuations encountered during drilling.

Mud Standpipe Manifolds

Full certification to global standards

Bleed pressure, reduce shock, and divert drilling fluid flow.

MPD Manifolds

Customized manifolds

Take precise control of pressure and flow in any operation requiring a choke.


Drilling, subsea, and production

Manage wellbore pressure to maintain control in the event of a gas kick.

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