管中管流体流动与管柱变形测量实验平台设计与测试  

Design and testing of an experimental platform for fluid flow and pipe deformation measurement in pipe-in-pipe structures

作　　者：孙巧雷[1,2] 田杰 刘语维 金雨杰 冯定 SUN Qiaolei;TIAN Jie;LIU Yuwei;JIN Yujie;FENG Ding(School of Mechanical Engineering,Yangtze University,Jingzhou 434020,China;Hubei Engineering Research Center for Oil&Gas Drilling and Completion Tools,Jingzhou 434020,China)

机构地区：[1]长江大学机械工程学院,湖北荆州434020 [2]湖北省油气钻完井工具工程技术研究中心,湖北荆州434020

出　　处：《实验技术与管理》2024年第6期64-69,共6页Experimental Technology and Management

基　　金：湖北省高等学校省级教学研究项目(2021276);湖北省教育科学规划2023年度重点课题(2023GA036);油气藏地质及开发工程国家重点实验室(西南石油大学)研究项目(PLN2022-16);湖北省自然科学基金项目(2021CFB180);湖北省中央引导地方科技发展专项(2017ZYYD006)。

摘　　要：基于海上管中管结构承载特性设计了管中管流体流动与管柱变形测量实验平台。该实验平台可更换不同的内管尺寸,研究不同管柱组合的变形和海水流动响应,能够通过调节外管外流速度、内管内流速度、顶部张紧力大小及水深等模拟海上管中管流体流动和变形特性。该实验平台可帮助学生加深对海上管中管的结构、原理及其作用的理解,提高专业兴趣,还可以进行管中管结构动态响应创新性实验研究,培养创新意识,提高解决复杂工程问题的能力。[Objective]With a distinctive structural configuration,the“pipe-in-pipe”structure can protect the inner pipe transmission,isolate seawater,and effectively prevent heat dissipation during the production process,thus providing vital support for offshore oil and gas extraction.However,the pipe-in-pipe structure faces intricate loads stemming from environmental factors such as external wind,waves,currents,internal oil and gas pressure,and platform drift.Hence,it is imperative to develop an experimental platform for examining the mechanical and fluid flow characteristics of the pipe-in-pipe structure.Such an initiative lays the groundwork for further theoretical and simulation research on the mechanical and fluid mechanics of the pipe-in-pipe structure while broadening the scope of education regarding the structure’s load-bearing capacity.[Methods]Drawing from the load-bearing attributes of the offshore pipe-in-pipe configuration,this article proposes an experimental platform to gauge fluid flow and pipe deformation within the structure.It investigates the deformation and seawater flow reactions of various pipe combinations,simulating the fluid flow and deformation dynamics of the offshore pipe-in-pipe structure under diverse influences.To accentuate the dynamic response traits of the inner and outer pipes and bolster the effectiveness of teaching and research,PVC piping is chosen as the primary material for the pipe-in-pipe structure.To account for the deformation traits of both inner and outer pipes and ensure data acquisition from upper and lower“1/3”points,eight strain gauges are evenly positioned on the water-facing surfaces of both pipes for deformation measurements.The constructed data acquisition system can provide a real-time display of test curves and parameters while also storing and recording test results.According to operational scenarios of deepwater pipe-in-pipe structures,an experimental procedure and its steps are designed to replicate the structure’s deformation under varied influences,su

关 键 词：管中管 流体流动 变形 实验平台 测试 

分 类 号：TE52[石油与天然气工程—油气田开发工程]