深水立管严重段塞流控制方法及其模拟分析

深水立管中常会出现严重段塞流，如果不加以控制，会带来严重的流动安全问题。为此，对国内外深水立管严重段塞流控制方法进行了全面调研和分析，总结了每种控制方法的优缺点、现场应用情况和适用范围。在此基础上利用某深水油气田的海管和立管资料，采用多相流瞬态模拟软件OLGA模拟了典型年份的流动状况，对段塞流最严重年份分别采用节流法、气举法、节流和气举结合法等方法进行了模拟，并探讨了管径与段塞流的关系。结论认为：该油气田生产后期会出现严重段塞流；在管径优化和设计阶段要充分考虑严重段塞流的影响；不同的段塞流控制方法适用于不同的工况，针对具体深水工程项目，应在开展软件模拟分析时综合考虑各种因素，最终选取经济、有效的段塞流控制方法。

Methods for severe slugging control in a deepwater riser and their simulation analysis

Severe slugging will easily occur in a deepwater riser.If not controlled,it will cause serious safety problems.Accordingly,a comprehensive research has been performed on the deepwater riser severe slugging control methods at home and abroad.The advantages,disadvantages,field application and application scope of them are summarized.The flow regimes of typical years are simulated by means of OLGA,a kind of multi-phase transient software,based on the submarine pipe and riser data of a certain deepwater oil and...