Internal-Locking Wellheads

Eliminate lockdown screws to reduce leak paths

Our wellheads lock into place with an internal locking mechanism (ILM) to provide superior isolation between casing strings. A feature on the packoff, the ILM also improves the efficiency of stackup operations for multibowl and unitized wellheads, reduces nonproductive time (NPT), and enhances safety.

The ILM Advantage

Make wellhead installation faster and easier

Installing wellhead systems with the ILM feature significantly reduces potential leak paths while isolating the annuli of multiple intermediate and production strings. The ILM also makes wellhead installation easy by enabling you to install the upper and lower packoff assembly from the rig floor.

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INCREASE EFFICIENCY

Conventional wellhead installations involve wait time for cement to cure and multiple steps for assembly. The ILM saves valuable rig time with features that enable efficient installation on the rig floor.

Expedites installation by eliminating wait time for cement to cure

Enables mandrel hanger installation from the rig floor, not the well bay

Facilitates quick assembly to BOP stack with Rapid-Lok®* design feature

*Rapid-Lok is a registered trademark of Meadow Burke.

IMPROVE OPERATIONS

Wellhead design affects overall operational performance. The ILM delivers design features that enable installing the wellhead without leaks and accommodating the desired connection types and casing sizes. 

Reduces potential leak paths from lockdown screws

Eliminates costly BOP separation to accommodate new casing sizes

Supports API and premium connections using a fluted mandrel hanger

ENHANCE SAFETY

In conventional wellheads, lockdown screws penetrate the wellhead bodies and introduce potential safety issues. The ILM locks the wellhead from the inside to achieve dependable pressure integrity and annular isolation in a variety of scenarios.

Isolates the annuli of multiple intermediate and production strings

Protects personnel by latching the wellhead from the inside and not the outside

Works in various environments, including high-pressure, high-temperature, and sour gas wells

Wellhead Installations with Integrity

Protect your well, workers, and the environment

Our ILM is designed in accordance with API standards for quality assurance. It is also pressure rated to withstand high pressures and high temperatures—and can even be applied in challenging environments, including sour service wells and shale formations.

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DESIGNED
IN ACCORDANCE
WITH API 6A

RATED FOR PRESSURES
UP TO 10,000 PSI (69 MPa)

RATED FOR TEMPERATURES RANGING FROM
−20° TO 250°F (−28° TO 121°C)

Find Out More

Eliminate lockdown screws to reduce leak paths

Our wellhead systems with the ILM feature deliver uncompromising pressure integrity by eliminating lockdown screws, reducing leak paths, and isolating the annuli of multiple intermediate and production strings. To learn how our services and technologies can enhance your operations, please complete the contact form below. One of our wellhead specialists will be in touch.