| 李文升,冯耀荣,张西宁,朱文军,王广明.海洋油田水下集输-立管内两相流冲击力预测模型[J].装备环境工程,2020,17(4):34-38. LI Wen-sheng,FENG Yao-rong,ZHANG Xi-ning,ZHU Wen-jun,WANG Guang-ming.A Prediction Model for Impact Force of Two-phase Flow in Underwater Pipeline-riser System of Offshore Oilfield[J].Equipment Environmental Engineering,2020,17(4):34-38. |
| 海洋油田水下集输-立管内两相流冲击力预测模型 |
| A Prediction Model for Impact Force of Two-phase Flow in Underwater Pipeline-riser System of Offshore Oilfield |
| 投稿时间：2019-10-21 修订日期：2019-12-11 |
| DOI：10.7643/issn.1672-9242.2020.04.006 |
| 中文关键词: 海洋油田 流固耦合 振动 严重段塞流 冲击力 |
| 英文关键词:offshore oil filed fluid-solid coupling vibration severe slugging impact force |
| 基金项目: |
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| Author | Institution |
| LI Wen-sheng | CNPC Tubular Goods Research Institute, Xi′an 710077, China;Xi’an Jiaotong University, Xi′an 710049, China |
| FENG Yao-rong | CNPC Tubular Goods Research Institute, Xi′an 710077, China |
| ZHANG Xi-ning | Xi’an Jiaotong University, Xi′an 710049, China |
| ZHU Wen-jun | Oil Pumping Machinery Manufacturing Plant, Bohai Equipment Tianjin New Century Machinery Manufacturing Co., Ltd, Tianjin 300280, China |
| WANG Guang-ming | Oil Pumping Machinery Manufacturing Plant, Bohai Equipment Tianjin New Century Machinery Manufacturing Co., Ltd, Tianjin 300280, China |
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| 摘要点击次数: |
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| 中文摘要: |
| 目的 分析两相流引起的冲击力与管道固有频率的流固耦合特性。方法 针对海洋油田水下集输-立管系统内严重段塞流这一不稳定流动，通过构建气液两相流固耦合预测模型，分析管内段塞频率、管外涡街频率等流动特性与管道固有频率的关系，获取严重段塞流不同阶段对管道的冲击力特性。结果 在水平方向上，管道所受冲击力最大部位为水平管与下倾管连接处，约为703.3 N；在垂直方向上，管道所受冲击力最大部位为下倾管底部与立管连接处，约为-993.5 N。管道所受冲击力与管内两相流引发的压力波动存在明显的一致性，在液塞喷发阶段，会引起整个管道冲击力的剧增。结论 严重段塞流同一周期内，不同流动阶段所引发的管道振动特性不同，且不可忽视，在实际海管设计及使用过程中，需要结合管道运行工况对海管振动特性进行综合评估。 |
| 英文摘要: |
| The paper aims to analyze the fluid-solid coupling characteristics between the impact force caused by two-phase flow and the natural frequency of the pipeline. In this paper, a fluid-solid coupling prediction model for severe slugging in pipeline-riser system was developed to analyze the relationship between the flow characteristics such as slug frequency, vortex street frequency and the natural frequency of the pipe and obtain the impact characteristics at different stages of severe slugging. It was found that the maximum impact force in the horizontal direction was at the junction of the horizontal pipe and the downward inclined pipe (which was about 703.3 N). The maximum impact force in the vertical direction was at the bottom of the riser (which was about -993.5 N). The impact fore on the pipeline was consistent with the pressure fluctuation caused by the two-phase flow. The impact force on the pipe wall increased fiercely at the blow-out stage. Vibration characteristics caused by different stage of severe slugging cannot be ignored. In the actual design and use of sea pipelines, the vibration characteristics of pipelines need to be comprehensively evaluated in combination with the operation conditions. |
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