Abstract: The invention relates to an offshore system for transferring fluid at least partly below sea surface. The offshore system comprises a flexible transporting unit and a first movable structure fix-point with a nominal position and a second structure fix-point arranged at a distance to seabed and at a lower position relative to the sea surface than the first structure fix-point. The flexible transporting unit is fixed to respectively the first structure fix-point and the second structure fix-point to provide a catenary liftable length section of the flexible transporting unit extending between the first structure fix-point and the second structure fix-point, wherein the catenary liftable length section has a touch down point at seabed at nominal position and where the distance to the second structure fix-point can be increased sufficiently to lift the catenary liftable length section from the seabed to form a catenary.

Abstract: The invention relates to an unbonded, flexible pipe having a length and comprising from inside out, a tubular inner sealing sheath, at least one metal armor layer and an outer sealing sheath of a sealing material. The unbonded, flexible pipe comprises at least one stiffened length section comprising a stiffening cover partially or totally surrounding the outer sealing sheath in the stiffened length section. The stiffening cover comprises a layer of a stiffening material having a flexural modulus which is higher than the flexural modulus of the sealing material, wherein the flexural modulus is determined according to ISO 178.

Abstract: The invention relates to an offshore system for transferring fluid at least partly below sea surface. The offshore system comprises a flexible transporting unit and a first movable structure fix-point with a nominal position and a second structure fix-point arranged at a distance to seabed and at a lower position relative to the sea surface than the first structure fix-point. The flexible transporting unit is fixed to respectively the first structure fix-point and the second structure fix-point to provide a catenary liftable length section of the flexible transporting unit extending between the first structure fix-point and the second structure fix-point, wherein the catenary liftable length section has a touch down point at seabed at nominal position and where the distance to the second structure fix-point can be increased sufficiently to lift the catenary liftable length section from the seabed to form a catenary.

Abstract: The invention relates to an unbonded, flexible pipe having a length and comprising from inside out, a tubular inner sealing sheath, at least one metal armor layer and an outer sealing sheath of a sealing material. The unbonded, flexible pipe comprises at least one stiffened length section comprising a stiffening cover partially or totally surrounding the outer sealing sheath in the stiffened length section. The stiffening cover comprises a layer of a stiffening material having a flexural modulus which is higher than the flexural modulus of the sealing material, wherein the flexural modulus is determined according to ISO 178.