2 / 2016-06-27 09:28:39

Key points of the environmental supervision on submarine pipeline installation

Submarine pipelines are indispensable for marine oil and gas transportation and water supply to islands. Common methods of subsea pipeline installation includes laybarge method, tow methods, horizontal directional drilling (HDD), shield tunneling, and mine tunneling. The environmental impact of pipeline construction will vary in scope and pattern with the construction method. The environmental supervision on submarine pipeline construction is featured by inaccessible construction sites, characteristic environmentally sensitive targets, and high demands on expertise and supervision level. The environmental supervision should pay more attention to whether the construction content conforms to its design and relevant requirements, and whether the construction pollution exceeds the corresponding standard. Besides, the implementation of various environmental protection and ecological compensation measures should be checked and the environmental monitoring be strengthened.