土崎沖人工島および海底管の陰極防食

抄録

Two boring platforms were constructed at Tsuchizaki offshore by S Oil Co. There are three oil well casings in each boring platform. Crude oil from oil wells is delivered to the tank yard by one submerged pipe line (O. D. 3.5 in). Oil well casings and boring platform jackets have been protected by zinc anodes. Impressed cathodic protection is applied for protection of submerged pipe line. Current and potential distributions along the pipe line are investigated.