subsea pipeline

The inspection and maintenance unit for subsea pipeline and cable is a kind of multifunction and new-type special offshore installation submerging into the sea to detect and maintain the pipeline, which is composed of main hull, deck cabin and channel.

海底管线电缆检测与维修装置是一种能潜入海底进行管线检测和维修的多功能、新型特种海上装备，主要由主船体、甲板室和通道三部分组成。

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Development of a combined and mechanical tee branch for subsea pipeline repair

用于海底管道维修的组合式机械三通研制

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Seventeen subsea pipelines with total length of more than 100 kilometers have been constructed in Bohai since the year of 1985. Periodical inspection and special inspection will be made in accordance with rules for subsea pipeline system used both in domestic and abroad and international practice.

渤海自1985年以来，已建成了17条海底管道，总长达100多km。

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