The world production capacity on large-diameter welded pipe amounts to more than 12 million tons per year 20-25% are produced as spiral sub-arc welded (SAW) pipes, with the balance of 75-80% being longitudinal SAW pipes (from plates). For most spiral-weld producers, a sizeable portion of line pipe is for water transportation, rather than hydrocarbon. In the past, the relative structural weakness of spiral-welded pipe, due to larger welded area, limited the growth of its use in the oil industry. With the development of more advanced production technology, the acceptance of spiral-welded pipes in the oil and gas industry has increased significantly. In this paper, the principals of the spiral manufacturing technology from coil by the two-step-method are introduced and the innovations of Corinth Pipework's production facility are outlined in detail, including the sophisticated NDT techniques and the Quality Management System.
New technology spiral SAW pipes for onshore & offshore oil and gas pipelines
2002
5 Seiten, 2 Quellen
Aufsatz (Konferenz)
Englisch
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