Arrangement for protecting components

Details Arrangement for protecting components Arrangement for protecting components

E - Fixed Constructions

02

D

166/51

E02D 29/00 (2006.01) E21B 33/037 (2006.01) E21B 43/017 (2006.01)

Patent

CA 2000518

A B S T R A C T : Arrangement for protecting components such as valves and control units incorporated in subsea structures particularly for hydrocarbon production, comprising a template structure adapted to rest on the sea bed and provided with supporting members (8,18A-B) for a number of functional modules (21,22,23,30,40) each containing at least one of said components (33A,43A-C) each being adapted to be retrieved to the surface. Each of the modules (30,40) is provided with at least one fixed roof element (36,42,46) and at least one completely removable roof element, these fixed and removable roof elements together covering substantially the entire top area of the module (30,40), and the roof elements of all modules in the subsea structure together cover a major portion of the top area of the subsea structure to protect against objects falling from above or moving along the sea bed, such as trawls or the like. The roof elements are of a structure adapted to be permanently deformed or crushed when a falling object results in an impact force thereon exceeding a predetermined threshold value. The loads from the roof elements of the modules are transferred to the supporting members of the template structure through the modules. The roof elements of all modules are lying substantially in a common plane without any significant part of the subsea structure protruding above the flush roof elements.

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