SUBSEA UMBILICALS & SEALS
FEATURE SPONSOR
Subsea Umbilicals Advice
As many of our readers know we visit relevant industry events and discuss areas of interest which would help our readership and therefore the industry. The subject of Subsea Umbilicals has often been brought up and so we welcome Subsea Innovation as sponsors of the feature and experts in the field to give us some much needed information.
We let Chris Wann, Subsea Innovation’s Business Development Manager give us his expert advice…
UMBILICALS AND SEALS Subsea Innovation, formed in 1985 by a team of experienced engineers and diving professionals, has proved itself as a company dedicated to delivering state of the art engineering products to the offshore oil & gas and energy industries throughout the world.
From seabed to topside the company and its staff have forged a track record for the supply of sealing, hang off and clamping solutions for all sizes of flexible along with machinery required to manufacture and install these systems.
Our most popular system achieves this via a structural clamping element fitted with our SIGrip high integrity collet system. The system is pre activated during the hang off operation to provide the required clamping force to prevent movement. Any further changes in hang off load, both in tension or compression, cause the clamping system to increase the clamping pressure and as such it is self- energising under use.
Our proven SISeal sealing elements are provided above the supporting section and are energised following successful hang-off via the interface plate on the top of the unit. Double seals with a testable annulus ensure that a seal is achieved prior to the completion of installation.
We can also provide T’s for fluid filling the tubes, electrically insulating hang off systems and also design to account for seismic loads as required by the client.
HANG-OFF ASSEMBLIES
At the topside the main purpose of a riser hang-off system is to provide a structural support between the riser or umbilical and the J or I-tube. Sealing elements are also used to ensure a pressure tight seal is provided against the medium inside the tube.
Collet sections are sized during the design phase to ensure that the maximum clamping load on the product cannot be exceeded within the design parameters. Structural support can also be achieved by resin potting, armour wire clamping and specific fittings required for Grayloc type connectors amongst others.
Temporary hang-off clamps, custom designed to be compatible with the full assembly, can be provided to ensure a safe hang-off operation when a crane cannot be used to support the flexible following pull in. These systems are all FAT tested with the final assembly to ensure total piece of mind for the client.
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www.windenergynetwork.co.uk
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