胜利油田海堤风暴潮致损初始机制与过程分析  

Initial mechanism and process analysis of storm surge damage to the seawall in Shengli oilfield

作　　者：徐帅陵[1] XU Shuailing(Sinopec Petroleum Engineering Corporation,Dongying 257000,China)

机构地区：[1]中石化石油工程设计有限公司,山东东营257000

出　　处：《海洋湖沼通报》2023年第2期10-17,共8页Transactions of Oceanology and Limnology

摘　　要：海堤损毁严重威胁着沿海地区人民生命财产安全和油气田正常运行。台风风暴潮期间有越浪时,海堤损毁发生迅速,海堤致损初始机制和破坏过程难以掌握。本文依据“利奇马”台风风暴潮期间损毁的东营胜利油田桩12海堤,建立室内物理模型,对海堤破坏的致损初始机制和破坏过程进行研究。结果表明:在堤顶路面发生破坏和不发生破坏两种工况下,堤内掏蚀空洞的发育情况是台风风暴潮使海堤损毁的重要因素,波浪经空洞对斜坡护面的浮托和推动,使得下部堆积散体暴露并被波浪冲走。通过本次室内模型试验,明确海堤致损初始机制,直观展示海堤破坏过程,为后续油气田海堤修复、修建工作提供数据支撑和理论依据。Seawall damage threatens the safety of people's lives and properties in coastal areas and the normal operation of oil and gas fields.When wave overtopping takes place during a typhoon storm surge,the seawall damage happens quickly,which makes it difficult to grasp the initial mechanism and process of the damage.Based on the seawall damage took place at pile No.12 in Dongying Shengli oilfield during the storm surge caused by typhoon Lekima,this paper established an indoor physical model to study the initial mechanism and process of seawall damage.The experiment was conducted on two occasions,when the seawall surface was damaged and when it was not.The result showed that,on both occasions,the development of scour holes was an important factor of the seawall damage during typhoon storm surge.The wave floats and pushes the protection surface of the seawall slope through these holes,making the lower loose accumulation exposed and washed away by the wave.This indoor model experiment clarified the initial mechanism and visualizes the process of seawall damage,which provided data support and theoretical basis for subsequent repair and construction of seawalls in oil and gas fields.

关 键 词：油气田海堤 损毁机制 风暴潮 模型实验 

分 类 号：P649[天文地球—地质矿产勘探]