自由站立式立管顶部及底部连接装置试验系统的研制与数值模型优化  

Development of a model test system and numerical model optimization for upper and lower connector assemblies of a free standing hybrid riser

作　　者：谭瑞龙 段梦兰[2] 汪志明[1] 何宁[3] 雍倩文 TAN Ruilong1, DUAN Menglan, WANG Zhiming1 ,HE Ning3 ,YONG Qianwen2(1. School of Petroleum Engineering, China University of Petroleum, Beijing 102249, China;2. Institute for Ocean Engineering Research, China University of Petroleum, Beijing 102249, China;3. Offshore Oil Engineering Co. , Ltd. , Tianjin 300451, Chin)

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]中国石油大学(北京)海洋工程研究院,北京102249 [3]海洋石油工程股份有限公司,天津300451

出　　处：《中国海上油气》2018年第2期158-166,共9页China Offshore Oil and Gas

基　　金："十二五"国家科技重大专项"海外大陆边缘盆地勘探开发实用新技术研究(编号:2011ZX05030)"部分研究成果

摘　　要：基于相似理论及弹塑性力学相关理论与方法,自主建立了自由站立式立管顶部连接装置和底部连接装置的模型试验系统,包括加载装置、原理样机角度调节装置、鹅颈管张力角度调节装置、恒张力装置、弯矩加载装置及边界固定装置。通过整体数值模拟得到最危险工况作为试验工况并给出试验加载边界,分别利用试验系统和局部数值模拟得到顶部连接装置和底部连接装置在最危险工况下的响应,并进行了对比分析,结果表明:该试验系统能够有效地测量自由站立式立管顶部及底部连接装置不同位置的静态及动态响应,利用试验结果验证后的数值模型能够很好地反映自由站立式立管顶部及底部结构静态及动态响应;在不同工况下,自由站立式立管顶部连接装置及底部连接装置最大应力出现在顶部连接装置与立管连接处,表明该顶部及底部连接装置还有进一步的优化空间。该试验装置的成功研制为深入研究自由站立式立管顶部结构及底部结构响应提供了一种新的手段和方法,有利于保障自由站立式立管系统的作业安全。Based on similarity criterion and correlative elastic-plastic mechanics theories and methods,a model test system for upper assembly and lower assembly of the free standing hybrid riser is developed independently.The test system includes loading device,angle adjustment device for assembly prototype,angle adjusting device for tension of gooseneck,constant tension device and fixed boundary conditions.The most dangerous condition and the test load boundary are given by the whole numerical simulation,and the response of upper and lower connector assemblies under the most dangerous conditions is analyzed by usingthe test system and the local numerical simulation respectively.The result shows that the model test device system can realize the measurement for the static and dynamic responses of upper assembly and lower assembly in different locations.The numerical results of a numerical calculation model verified by experiments are consistent with the results of a model test of the upper assembly and lower assembly.Under different conditions,the maximum stress of the upper and lower connector assemblies occurs at the joint of the upper assembly and riser,and further optimization is required for upper and lower connector assemblies of a free standing hybrid riser.The above study demonstrates that the model test system could provide a new method for the response of upper assembly and lower assembly of free standing hybrid riser,which is of great significance for the safe operations of free-standing hybrid risers.

关 键 词：自由站立式立管 顶部连接装置 底部连接装置 模型试验系统 数值模型优化 试验工况 

分 类 号：TE952[石油与天然气工程—石油机械设备]