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Multi‐Layer Pipes for Hydrocarbons Conveyance
Author(s) -
Bulleri Barbara,
Gei Massimo,
Gallone Giuseppe,
Marchetti Augusto
Publication year - 2004
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200451437
Subject(s) - piping , materials science , polymer , refining (metallurgy) , layer (electronics) , extrusion , chemical resistance , composite material , petroleum engineering , mechanical engineering , metallurgy , engineering
The replacement of metals with plastics in piping systems is a well established practice in a vast range of public and industrial applications. However, difficulties still exist, mainly related to the limited chemical resistance of the polymers commonly used in pipe manufacturing to some conveyed fluids. This prevents using plastic pipes in important applications such as the transport of liquid hydrocarbons, particularly in oil fields. The use of chemically resistant polymers, such as fluorinated polyolefins, is precluded by high cost and poor mechanical properties. Co‐extrusion of multi‐layer pipes carrying an internal chemically resistant liner can be a viable alternative capable to extend the use of plastic pipes to refining and chemical industries. An experimental PE/PA multi‐layer pipe has been developed whose resistance to diffusion and mechanical properties have been tested. Tests in real oil fields confirm the good performance of the new pipes.