Why is pipeline anticorrosion so necessary？

Protection technology to avoid corrosion of pipelines, soil, air and transport media (oil, natural gas, etc.). Most of the pipelines that transport oil and gas are in a complex soil environment, and the media transported are also corrosive, so the inner and outer walls of the pipeline may be corroded. Once the pipeline is corroded and perforated, it will cause oil and gas leakage, which will not only interrupt the transportation, but also pollute the environment, and may even cause fire and cause harm. According to statistics from the U.S. pipeline industry, direct losses due to corrosion in 1975 amounted to 600 million U.S. dollars. Therefore, preventing pipeline corrosion is an important part of pipeline engineering.