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油气长输管道是油气储运系统的重要组成部分,腐蚀问题是影响油气长输管道使用寿命和可靠性的最重要因素,也是造成油气管道事故的主要原因之一。油气管道,特别是大口径、长距离、高压力油气管道的用钢量及投资巨大。因腐蚀引起的泄漏、管线破裂等事故不但损失重大,抢修困难,还可能引起火灾爆炸及环境污染。因此,对已有和新建的油气管道的腐蚀控制十分必要。
Oil and gas long-distance pipeline is an important part of oil and gas storage and transportation system. The corrosion problem is the most important factor that affects the service life and reliability of long-distance oil and gas pipelines and is also one of the main causes of oil and gas pipeline accidents. Oil and gas pipelines, especially large diameter, long distance, high pressure oil and gas pipelines and the huge investment in steel. Due to corrosion caused by leakage, pipeline rupture and other accidents not only significant loss, repair difficulties, but also may cause fire and explosion and environmental pollution. Therefore, it is necessary to control the corrosion of existing and new oil and gas pipelines.