BUOYANCY - DISTRIBUTED BUOYANCY MODULES

distributed buoyancy modules

GENERAL

Flexible Pipes in offshore Oil and Gas production require specific geometric configuration to reduce tension loads.
Bardot Distributed Buoyancy Modules allow achieving and maintaining these particular configurations by being fixed to the outside of the riser.

DESIGN

Bardot Distributed Buoyancy Modules are composed of two buoyancy elements (half shells) and an internal clamp which maintains the modules onto the riser. They are designed to provide the required uplift.

BUOYANCY ELEMENT

Buoyancy Element is made of syntactic foam encapsulated in a polyethylene external skin.
Syntactic foam properties are optimized to reach the required buoyancy at operating water depth.
The external skin provides external impact and marine growth protection.
The skin is made from high performance polymer and designed for permanent applications in seawater.
The two half shells are fastened to each other by stainlesssteel or Kevlar straps depending on loads applied and customer requirements.

INTERNAL CLAMP

Bardot Internal Clamp is made of three or four casted polyurethane parts. A rubber pad is placed between the Clamp and the riser in order to prevent from any slippage and to provide a smooth interface contact.
The clamping pressure is generated by a strap all around the Clamp parts.

MANUFACTURING

BARDOT Group manufacturing site works with an advanced in-line process to guarantee the constant best quality. Recipes are monitored by sensors during all the production.

TESTS

distributed buyoancy modules photo

HYDROSTATIC TESTING

All Bardot syntactic foams are tested in our hyperbaric chambers capable of simulating up to 6000m water depth.
Crush test and Instrumented Buoyancy Loss test are performed as per most critical standards.

CLAMP TESTING

A special test bench for Clamp has been designed by our engineers and allows us to test our clamps on customer’s flexible/cables/umbilicals samples or on mock ups.

MATERIAL TESTING

All the materials are tested in our laboratory to qualify their thermal and mechanical properties.