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Flowline Buoyancy
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There is a growing requirement in deepwater applications for rigid flowlines to perform under high temperature/high pressure conditions. Large cyclic changes in temperature and pressure cause expansion of the flowline that can result in the occurence of lateral or upheaval buckling. Flowline system engineers therefore need to consider this potentially damaging phenomenon in their analysis and ways of mitigation.
Distributed Buoyancy Modules
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In floating production scenarios, dynamic risers and rigid steel export risers, cables and umbilicals are often required to be held subsea in a geometric configuration known as a stable catenary from vessel or platform to the riser base or export tanker, to achieve this shape a distributed buoyant load must be applied to the relevant riser section. This buoyant load can be applied using Distributed Buoyancy Modules (DBM).

ROV Buoyancy
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We have been manufacturing syntactic foam buoyancy modules for Remotely Operated Vehicles (ROVs) since the late 1980s. During this time, the size and complexity of modules has increased significantly, with modules of up to 10,000kg of nett buoyancy now required and with water depth requirement up from 1000m to 3000m as standard.

Pipeline Installation Buoys
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When installing heavy, large diameter pipelines offshore especially in deepwater, the tensions generated on the installation vessel can be extremely high.

Modular Subsea Buoys
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Safe mooring of floating structures can be required in both shallow and deep water. In most cases this will include chains, wire ropes and one or more subsea mooring or spring buoys. Mooring buoys generally consist of buoyancy element(s) mounted on a steel through member which interfaces with the mooring system.
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