Technical services for special inspection of Yangtze River pipeline of Fujian LNG gas transmission trunk line

Positioning, buried depth detection, plane and profile drawing of 6 underwater crossing pipelines in Jiulong River and Jinjiang River were carried out to test the cathodic protection potential and stray current of the pipelines. Sonar was used to image the underwater pipelines, and 50 meter contour lines on both sides of the underwater pipelines were mapped. Our company uses the DEEP SEE system based on fitting method to detect the underwater pipeline, and draws the pipeline direction and profile.