Page 390 - Pipelines and Risers

Date Location Length OD Wall Steel Source, Type Welding Method
(in) (mm)
1985* Germany, Megal I1 pipeline 3.2 km, trial Germany, UOE Manual welding as per 1993
section only Schliichtem to Wetter line
1986* Czechoslovakia 1.6 km 56 15.6 Germany, UOE
Alberta Canada, Empress East 50 km 42 10.6 Japan, UOE Part mechanized (126 welds)
Compressor Station
Germany, Schliichtem to Wetter, 260 km 48 18.3 Germany, UOE Mostly manual. Mechanized for 50
Ruhrgas km Weme to Sundem section.
1994 Alberta Canada, Mitzihwin project 53.8 km 48 12.1 Canada, spiral- ~ Mechanized for 53.8 km
DSAW.

Note: These projects involved use of X80 sections in X70 pipelines so operational stresses were reduced pro rata.