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pipeline joining method and apparatus for producing subsea pipelines, and subsea pipeline launching vessel comprising such apparatus
pipeline joining method and apparatus for producing subsea pipelines, and subsea pipeline launching vessel comprising such apparatus
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机译:用于生产海底管道的管道连接方法和设备以及包括该设备的海底管道下水船
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摘要
A method of joining pipes (3) to produce an underwater pipeline (2) provides for rotating an extrusion outlet about a cutback (18) between two welded pipes (3) so as to wind and simultaneously extrude a protective sheet (22) about the cutback (18) from the extrusion outlet (38) close to and facing the cutback (18); and compressing the protective sheet (22) on the cutback (18) downstream from the extrusion outlet (38).
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