FPSO offshore Reel hose applications

Solutions for Marine Breakaway Coupling operational handling on Reel applications using nipple hoses.

Reeling considerations

During the process of handling and winding the hose on a FPSO reel, the MBC is subject to high bending moments and axial loads.
Whether the MBC is connected to single or double carcass hoses, the MBC will be exposed to regular increased axial and bending moments. PetalC is designed to manage these scenarios.
Gall Thomson has supplied more than 50 MBCs to FPSOs - each possessing specific operational and design parameters within Reel applications. Certain FPSO systems have dictated the use of transit bolts. PetalC removes the need for transit bolts in many of these situations. *

These loads will vary, depending on the hose data, the reel design and operating parameters.

Parameters include purging pressure, offloading flow rate, crude characteristics and the offshore conditions during deployment or storage of the hose string.

Shown: 16” Controlled Double Closure ANSI 150lb Gall Thomson Petal 17 Type MBC on an FPSO reel with Double Carcass hoses. This MBC is fitted with transit bolts.

Solution 1 – Transit Bolts

To ensure integrity during the reeling and un-reeling process, the MBC can be designed with titanium Transit Bolts. The suitability of Transit Bolts will depend on certain details within the required specification for the operation.
Transit Bolts need to be removed during the deployment of the hoses and re-installed prior to reeling the hoses with MBC on the FPSO reel.

Solution 2 – PetalC

Marine Breakaway Coupling PetalC for reel applications

Shown: 16” Controlled Double Closure ANSI 150lb Gall Thomson PetalC Type MBC on an FPSO reel with Single Carcass hoses. This MBC is not fitted with transit bolts.

The reduced installed length and optimised geometry of the PetalC caters for the high bending moments generated by these operational parameters and removes the need for Transit Bolts*.

This means PetalC can be used within established offshore operational parameters.

*There may be occasions when the specifics of an operation may determine the use of Transit Bolts.

Contact the Gall Thomson team for a detailed presentation on PetalC

Configuration and specification options are also available from the Gall Thomson team.
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