AN UNBONDED FLEXIBLE PIPE AND PIPE SYSTEM

摘要

The invention relates to an unbonded flexible pipe having a length along a longitudinal axis, a first pipe end, and a second pipe end. The pipe comprises a plurality of whole length layers extending from the first pipe end to the second pipe end. The plurality of whole length layers comprises at least a tubular inner sealing sheath, at least one armour layer and an outer protective layer. The unbonded flexible pipe further comprises at least one thermally insulating layer arranged between the internal sealing sheath and the outer protective layer in an insulated length section. The flexible pipe comprises an inner part comprising at least the internal sealing sheath and any other whole length layers being internal to the thermally insulating layer. The flexible pipe further comprises an outer part comprising at least the outer protective layer and any other whole length layers being external to the thermally insulating layer. The at least one thermally insulating layer is terminated at a distal termination point. The distal termination point being in a distance from at least one of the first and the second pipe end of the unbonded flexible pipe. The invention further relates to a flexible pipe system and its use.