초록 ▼

The present invention relates to an arrangement in a pipe bundle, more specifically to a method and a system for heating subsea or on-shore pipelines, especially pipelines for transportation of substantially oil, gas and water, said pipelines (8, 108, 208) being arranged in a substantially cylindric

The present invention relates to an arrangement in a pipe bundle, more specifically to a method and a system for heating subsea or on-shore pipelines, especially pipelines for transportation of substantially oil, gas and water, said pipelines (8, 108, 208) being arranged in a substantially cylindrical outer carrier pipe (1, 101, 201), and for the purpose of providing an arrangement wherein the quantity of heating cable can be reduced, and wherein the manufacturing of such arrangement can be simplified, at the same time as the finished arrangement will provide appropriate heating of the pipelines and the contents thereof, it is according to the invention suggested an arrangement comprising:

대표청구항 ▼

[ What is claimed is:] [1.] Method for heating subsea or on-shore pipelines, especially pipelines for transportation of substantially oil, gas and water, said pipelines (8, 108, 208) being arranged in a substantially cylindrical outer carrier pipe (1, 101, 201), characterized in that for the heating

[ What is claimed is:] [1.] Method for heating subsea or on-shore pipelines, especially pipelines for transportation of substantially oil, gas and water, said pipelines (8, 108, 208) being arranged in a substantially cylindrical outer carrier pipe (1, 101, 201), characterized in that for the heating of said pipelines (8, 108, 208):providing for said carrier pipe (1, 101) an outer (2) and/or inner (102) thermal insulation (2; 102),providing in the longitudinal direction of and associated in close proximity with said carrier pipe (1, 101) one or more longitudinally extending energy carriers (3, 4, 5; 103, 104, 105) for the dissipation/transfer of heat indirectly to said pipelines (8, 108), respectively said pipe bundle or bundles, and thereby to the contents of said pipe bundles, said energy carriers not contacting the pipelines or the insulation thereon.