EVALUATIONS, INSPECTIONS REVEAL NORTH SEA PIPELINE FREE OF CORROSION

Ian Frazer Conoco (UK) Ltd. Aberdeen Michael W. Joosten, Erwin Buck, Juri Kolts Conoco Inc. Ponca City, Okla. Glyn Jones Conoco Inc. Houston A variety of corrosion-evaluation techniques applied to the 28-in., 86-mile Viking wet-gas line in the U.K. North Sea has shown the line to be essentially corrosion free after 18 years of service. Internal corrosion rates over the period are estimated to be less than 0.05 mils per year (mpy).

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