Pipeline oil leakage is a serious risk during pigging. Although there are various reasons for pipeline oil leakage. But generally speaking, it mainly includes the following two aspects: First, after long-term corrosion of the pipe body, there are thin parts in the severely corroded parts. The thin part of pipe wall may be broken during ball passing. There is also a risk of oil leakage from the pipeline.

The cleaning of the pipeline is to dredge the pipeline, clean up the sludge in the pipeline and keep it unblocked for a long time, so as to prevent waterlogging in the city. Water Treatment Pipeline cleaning has become an important work that Drainage Department should pay more attentions. In the drainage pipeline, a large number of sundries and cement sand at the infrastructure construction site will precipitate and deposit, which will cause pipeline blockage. Without the cleaning of pipelines, it will cause excessive flow of sewage, pollute the environment and bring trouble to people’s life.

Pig Scraper jamming is a serious problem that may occur during pigging. If it is not serious, it will cause the interruption of the oil transportation process. In severe cases, it may cause an abnormal increase in pipeline pressure. This may even lead to serious problems such as pipe leakage. There are various reasons for pig jamming.