The Improved SPOILER——A New Self-Burying Applied Technology in the Pipeline Laying for Submarine Pipeline

This paper introduces the SPOILER's application as a new self-burying applied technology in the pipeline laying for submarine pipeline. The SPOILER, designed by SPS Co. of Netherland, developed in America and tested in the North Sea in 1988, is an apparatus used in pipeline laying of submarine pipeline, by means of the flowing sea current to self-bury the welded pipeline. However, this apparatus is not suitable for the construction of submarine pipeline in Area sea area for its traditional design. After improvement, HHI Co. of Hyundai, Korea, use this apparatus in Hangzhou Bay Submarine Pipeline (Hangzhou-Shanghai-Nanjing Imported Crude Oil Pipeline, pipeline section in KP2. 4 to KP49. 25). The field application shows that installing the apparatus not only fast forms shallow ditch by the flowing sea current within the buried depth, but also saves the construction costs, and the pipeline self-burying way can ensure the safety of operating pipeline.