SolutionsThe cross section of oil and gas pipeline
General
The crossing section construction is very important. It divides into two parts: casing crossing and exposed pipeline crossing

As for casing crossing, there exists annulus between the outside steel casing and main pipeline. The special environment will lead to difficulty in cathodic protection. Therefore the main pipeline are always bare pipes. The stones in the soil will exert damage to the anticorrosive coating of pipeline. When the crossing section is a long distance, the corrosion control of pipeline will be influenced. Zhejiang Yuxi provides the below solution to this problem:
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