注聚平台振动特性分析及阻尼基座隔振性能研究
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1.中石化石油工程设计有限公司;2.中国海洋大学

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基金项目:

山东省自然科学基金项目(ZR2021QE101), 东省重点研发计划(重大科技创新工程)项目(2021CXG010701), 国家自然科学基金项目(52088102, 51879249)


Study on the Vibration Characteristics of Polymer Injection Platform and Vibration Isolation Performance of the Damping Base
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Affiliation:

1.Sinopec Petroleum Engineering Corporation;2.Ocean University of China

Fund Project:

Shandong Provincial Natural Science Foundation of China (Grant No. ZR2021QE101), the Key Research and Development projects of Shandong Province (Grant No. 2021CXG010701),National Natural Science Foundation of China (Grant No. 52088102,51879249)

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    摘要:

    海上老旧油田注聚开发过程中大型注聚泵的持续低频、高幅值振动容易引发注聚平台局部疲劳损伤,严重影响了注聚平台的结构安全。本文基于Abaqus软件建立了大型注聚泵作用下注聚平台动力响应分析模型,探究了注聚泵布置方式、开启数量、启动间隔等参数对注聚平台振动特性的影响规律。基于被动隔振原理提出了一种迷宫式约束阻尼隔振基座用于降低平台的振动,并利用数值方法对该约束阻尼隔振基座的隔振效率进行了研究。结果表明,注聚平台的振动响应会随着注聚泵开启数量的增加呈现线性增长趋势,不同启动间隔可导致注聚泵机振动荷载相互抵消,从而导致注聚平台振动响应大幅降低,而迷宫式约束阻尼隔振基座可显著降低注聚平台多个自由度的振动响应,其隔振效率可达20%。

    Abstract:

    The polymer injection is often adopted to improve the recovery rate of the aged oil field. However, the continuous low-frequency and high-amplitude vibration of the polymer injection pumps will cause the cumulative fatigue damage of the polymer injection platform inevitably. Therefore, it is vital important to investigate the impact of polymer injection pumps on the platform and mitigate the vibration response of the platform. A dynamic analysis model of the polymer injection platform under the action of multiple polymer injection pumps is established with the Abaqus software, and the influence of pumps’ location, pump’s number and pump’s start instants on the vibration intensity of the platform are investigated in detail. In addition, a labyrinthine constrained damping isolation base is proposed according to the passive vibration isolation principle, and the performance of the damping base are numerically studied. Numerical results show that the vibration intensity of the platform increases linearly as the number of pumps increases. The vibration loads will cancel each other for the pumps start up at different instants, resulting in a significant reduction in the vibration intensity of the platform. In addition, the labyrinthine constrained damping isolation base can reduce the vibration intensity of the platform in multiple degree-of-freedoms significantly, and the isolation percentage can reach to 20%.

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  • 收稿日期:2022-08-11
  • 最后修改日期:2022-12-21
  • 录用日期:2022-12-29
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