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根据近几年我国东海海域近岸段海底管线的使用经验,由于受东海沿岸潮汐作用影响,海底管道路由附近海流呈周期性变化规律,并且海床附近高流速导致悬跨处管道支撑结构被冲刷或侵蚀情况严重。由于海底管道输送是海洋油田油气运输的最佳方式,对海底管道的悬跨支撑形式设计便成为了重点。有效地解决海底管道的悬跨支撑问题,可以通过优化悬跨处理形式或提供更有效的悬跨支撑结构,来保证海底输送管道的安全,提高油气运输的效率。
According to the experience of using submarine pipelines in the coastal area of the East China Sea in recent years, due to the influence of the tides on the coast of the East China Sea, the current around the submarine pipelines changes cyclically periodically, and the high flow velocity near the sea floor causes the pipe support structure to be scoured Or serious erosion. Since submarine pipelines are the best way to transport oil and gas in offshore oilfields, the design of suspension supports for subsea pipelines becomes the focus of attention. To effectively solve the problem of suspension support of submarine pipelines, the safety of the submarine transmission pipelines can be ensured and the efficiency of oil and gas transportation can be improved by optimizing the suspension treatment form or providing a more effective suspension support structure.