Marine oil and gas pipelines suffer severe marine organism fouling. Barnacles and oysters increase transmission resistance by 10%-20%, corrode pipe surfaces, shorten service life and raise maintenance costs. Uneven stress also triggers leakage and ocean pollution. Chemical anti-fouling coatings poison seawater with short service durability. Underwater manual cleaning costs highly and risks pipe damage. Biofouling contributes 15%-20% annual maintenance expenditure, and chemical pollution incidents occur hundreds of times yearly.

The Conductive SR anti-biofouling ring combines physical cleaning and electric field inhibition for eco-friendly solutions. It tightly adheres to pipe walls via material contraction without extra fixation, lifting installation efficiency by 50%. Daily seawater temperature fluctuation drives automatic stretching and contraction to wipe off juvenile organisms physically. 3-5V low voltage generates mild 0.5-1V/m surface electric fields harmless to marine creatures but restraining larval attachment, achieving over 90% anti-fouling efficiency with zero chemical pollution.

One-year field application on a submarine gas pipeline cuts biofouling quantity by 88%, limits efficiency decline merely to 2% and reduces annual maintenance costs by 75% without seawater contamination. Durable corrosion-resistant material serves 8-10 years accommodating thermal deformation. Marine engineering and oil-gas enterprises reduce operational costs while undertaking environmental protection responsibilities. Cooperate on anti-fouling solutions to advance green sustainable marine engineering.