Outstanding Deepwater Flowline Protection

'Hyperlast Syntactic'® polyurethane is providing outstanding protection and insulation to goosenecks, Xmas Trees, spools, pipelines and anchor blocks in the deepwater fields off the coast of West Africa, and in the Gulf of Mexico.

Girassol
Nearly 5km of production spools from tower-to-bundle, bundle-to-bundle, and bundle-to-manifold are coated with 'Hyperlast Syntactic' DW512-300® in the Girassol oil and gas field, situated 210kms north-west of Luanda, West Africa, where 40 wells (23 production) are sited in 1350m (4,400ft) of water.
On the surface, buoyancy tanks use Hyperlast 7850265 insulated anchor blocks, as do the risers that form the goosenecks. The Hyperlast materials were applied to the spools, goosenecks and production bundles, all to a just-in-time (JIT) production schedule.
High impact strength, thermal insulation and corrosion protection are the proved and essential 'Hyperlast Syntactic' properties necessary for a coating that will last the lifetime of a flowline.

La Ceiba
The 37.5km long La Ceiba Phase #2, 10 inch pipeline, coated by Bredero, with 48mm (2 inch approx) of 'Hyperlast Syntactic' DW512-150 polyurethane, lays at a depth of 717m (2,330ft), nearly 35km off Equatorial Guinea.
Operating at 80°C, this pipeline relies heavily on the 'Hyperlast Syntactic' properties of exceptional insulation and high protection - essential in maintaining a successful flowline.

BP King
Located some 600kms east of New Orleans in the Gulf of Mexico, two pipelines with a combined length of 55kms and coated with 'Hyperlast Syntactic' DW512 polyurethane, have been layed at depths varying from 1006m to 1677m (5,450ft).
The pipe-in-pipe configuration at BP King is a 12¾-inch outer sleeve containing hot water that surrounds an 8-inch, 82°C flowline. The outer sleeve is coated in 'Hyperlast Syntactic' DW512-150 and DW512-300 dependent on depth of use. The pipe jointing was completed using Hyperlast 2874016 as primer, and Hyperlast 2851239 as the top coat.

The 'Hyperlast Syntactic' polyurethane outer coating easily resists the hydrostatic pressure at these depths (1677m) and far beyond, with the first class thermal insulation and abrasion resistance also unimpaired. Additionally, simulated tests recently carried out in partnership with Heriot Watt University, confirm that water ingression at this depth, is minimal over a 20-year period.

 

Ref: 22-1406   May 2002