Submarine piping section and process for production thereof

Details Submarine piping section and process for production thereof Submarine piping section and process for production thereof

F - Mech Eng,Light,Heat,Weapons

16

L

189/19, 26/74

F16L 9/08 (2006.01)

Patent

CA 1040557

ABSTRACT OF THE DISCLOSURE There is described a piping section for use in the construction of a submarine piping string, comprising an inner metal pipe having disposed around its outer surface over substantially its entire length, a concrete jacket formed from one or more preformed concrete hollow cylindrical sections, with a set grout composition dis- posed between the jacket and the pipe. In the produc- tion of the piping section, the inner metal pipe is placed within the section or sections making up the con- crete jacket with a spacing between the jacket and the inner metal pipe and the grout composition is injected into the space between the two. The internal diameter of the inner metal pipe is sufficient to allow the through-flow of oil or gas and the piping section will usually have an external diameter of from 0.5 to 1.5 metre.

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