FN Archimer Export Format
PT J
TI Life time prediction of polymer used as thermal insulation in offshore oil production conditions: Ageing on real structure and reliability of prediction
BT 
AF LE GAC, Pierre-Yves
   CHOQUEUSE, Dominique
   MELOT, D.
   MELVE, B.
   MENICONI, L.
AS 1:1;2:1;3:2;4:3;5:4;
FF 1:PDG-REM-RDT-LCSM;2:;3:;4:;5:;
C1 IFREMER, Ctr Brest, Lab Comportement Struct Mer, CS 10070, F-29280 Plouzane, France.
   TOTAL SA, DGEP DEV TEC COR 22D67, F-92078 Paris 6, France.
   STATOIL, RDI, N-7005 Trondheim, Norway.
   PETROBRAS CENPFS, Res 6 Dev Ctr, Rio De Janeiro, Brazil.
C2 IFREMER, FRANCE
   TOTAL, FRANCE
   STATOIL, NORWAY
   PETROBRAS CENPFS, BRAZIL
SI BREST
SE PDG-REM-RDT-LCSM
   PDG
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 2.24
TC 6
UR https://archimer.ifremer.fr/doc/00174/28572/26957.pdf
LA English
DT Article
DE ;Polyurethane;Life time prediction;Hydrolysis;Offshore;Thermal insulation;Durability
AB Polymers are widely used for passive thermal insulation coatings on steel pipe in offshore oil and gas production. In this industry, structures used in deep sea have to be reliable as they are in service for more than 20 years in a very severe environment: sea water, hydrostatic pressure, temperature. One of the main questions is how to test and predict the lifetime of such structures in the laboratory. This study presents one approach that has been developed to characterize and predict the degradation of polyurethanes used as thermal insulation materials.  Based on results obtained during accelerated ageing of the PU in sea water, a prediction of degradation through the thickness has been set up taking into account the temperature profile in the coating, water absorption and hydrolysis. Validity of this model has been investigated by comparing predictions with experimental data obtained on a real structure that has been aged for more than a year with an internal temperature up to 125°C in water under hydrostatic pressure. Using this prediction, the effect of different parameters (such as coating thickness, internal and external temperature) on the degradation level of a structure has been examined.
PY 2014
PD APR
SO Polymer Testing
SN 0142-9418
PU Elsevier Sci Ltd
VL 34
UT 000335426000022
BP 168
EP 174
DI 10.1016/j.polymertesting.2014.01.011
ID 28572
ER

EF