Coupling for junction of pipe-in-pipe pipeline
AssigneeItp SA
InventorsJean-Aurélien Damour, Christian Geertsen
Life of this patent
Estimating the term…
Abstract
A coupling for pipe-in-pipe pipeline tubing formed of an assembly of sections each incorporating an inner pipe and an outer pipe butt-welded to the inner pipe, two successive sections being joined together by the welding of respective inner pipes delimiting a segment of inner pipe. The coupling is formed by a sleeve arranged perpendicularly to the segment and a filler material constituted by a quick-set mortar based on aluminous cement and sand, the filler material being arranged in the free space delimited by the sleeve, the segment and the outer pipes of two successive sections.
Claims13
A coupling system for pipe-in-pipe pipeline tubing, the coupling system comprising:
- pipe-in-pipe pipeline tubing comprising an assembly of sections each incorporating an inner pipe and an outer pipe butt-welded to the inner pipe, two successive sections being joined together by the welding of the respective inner pipes delimiting a segment of the joined inner pipe;
- a sleeve arranged perpendicularly to the segment of the joined inner pipe;
- and
- a filler material constituted by a quick-set mortar based on aluminous cement and sand, the filler material being arranged in a free space delimited by the sleeve, the segment of the joined inner pipe, and the respective outer pipes of the two successive sections.
Dependencies are inferred from the claim text.