Discussion Of Change Pipeline For Shallow Sea Oil Submarine Pipeline

China is going to win the first import oil country in the world and china count on oil more and more . Oil long distance transportation have two main method,one is oil tanker transportation ,the other is pipeline transportation.Duration Oil pipeline transportation,when time is going ,pipeline aging, pipeline distortion ,corrosion thinner,rust, penetration ,more and more pipelines need to be change or repair every year.In order to keep away from affecting for pipeline safety and continue supply ,stopple technology with pressure is more and more popular.Stopple technology with pressure to be mature on land,but to be use for submarine is more difficult. In recent years,more and more offshore oil and gas project began, and more and more submarine pipe to be laid down. Oil and gas production and transportion to land termination through submarine pipeline,and off-loading oil yard transport oil to land oil storage from shallow sea submarine pipeline.Such submarine pipeline is more difficult to maintenance and change pipeline.This article introduced stopple technology with pressure company which in oversea and domestic firstly. And then we introduce stopple technology with pressure and dry tanker technology .We introduce shallow sea submarine pipeline project construction and attention from Huade oil pipeline change pipeline project .At last,we introduce stopple with pressure and dry tanker risk identification and safety measures.We hope to give some suggestion for stopple with pressure project of shallow sea oil pipeline in the world.