CP300海洋钻井平台井架理论计算与试验分析

发布时间：2018-04-13 10:02

  本文选题：海洋钻井平台 + 井架　； 参考：《东北石油大学》2017年硕士论文

【摘要】：CP300海洋钻井平台是渤海装备辽河重工有限公司自主研发的新产品,JJ675/52-T井架是CP300海洋钻井平台的重要组成部分,是海洋钻井平台工作中的重要承重和受力部件。井架在设计过程中,需要对井架结构进行强度、刚度和稳定性的受力分析,计算其在各种工况下杆件的受力情况,判断其强度、刚度和稳定性能否满足设计要求。但由于实际井架结构较为复杂,建立有限元模型时无法模拟所有细节,井架制造过程也存在着材料有缺陷的可能。而理想有限元模型无法不能真实描述井架受力特征。因此,井架安装完成后,一般需要对新井架进行应力测试,验证井架是否满足要求。本文的研究内容主要是对CP-300自升式海洋钻井平台井架依据相关标准进行受力分析,考虑各种工作要求和海洋作业环境对井架的影响,对井架承受的各种载荷进行组合,建立井架分析的载荷数据模型;利用SACS有限元分析软件,建立有限元分析模型,对有限元模型输入单元特性数据,进行井架的强度和稳定性计算。通过对井架各杆件受力结果进行分析,校核井架的强度、刚度和稳定性,使井架满足设计要求。井架组装完成后,再对井架进行最大静钩载试验,通过电测法对主要构件进行应力应变测试。利用实际测试数据对井架进行分析计算,验证井架是否满足设计要求。从理论计算和实验测试两个角度对井架进行相互验证,确保井架结构能满足设计要求。
[Abstract]:CP300 offshore drilling platform is a new product developed independently by Bohai equipment Liaohe heavy Industry Co., Ltd. JJ675 / 52-T Derrick is an important part of CP300 offshore drilling platform and an important load-bearing and load-bearing part in the work of offshore drilling platform.In the process of Derrick design, it is necessary to analyze the strength, stiffness and stability of the Derrick structure, calculate the stress of the member under various working conditions, and judge whether the strength, stiffness and stability of the Derrick can meet the design requirements.However, due to the complexity of the actual Derrick structure, it is impossible to simulate all the details when the finite element model is established, and there is the possibility of material defects in the manufacturing process of the Derrick.But the ideal finite element model can not truly describe the mechanical characteristics of Derrick.Therefore, after the Derrick installation is completed, it is generally necessary to test the stress of the new Derrick to verify whether the Derrick meets the requirements.The main research content of this paper is to carry on the force analysis to the Derrick of CP-300 jack-up offshore drilling platform according to the relevant standard, considering the influence of various working requirements and the marine working environment on the Derrick, and combining the various loads which the Derrick bears.The load data model of Derrick analysis is established, and the finite element analysis model is established by using SACS finite element analysis software. The strength and stability of Derrick are calculated by inputting the characteristic data of element to the finite element model.The strength, stiffness and stability of the Derrick are checked by analyzing the stress results of each member of the Derrick, so that the Derrick can meet the design requirements.After the Derrick assembly is completed, the maximum static hook load test is carried out on the Derrick, and the stress and strain of the main components are measured by electrical measurement method.The Derrick is analyzed and calculated with actual test data to verify whether the Derrick meets the design requirements.The Derrick is verified by theoretical calculation and experimental test to ensure that the Derrick structure can meet the design requirements.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE951
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本文编号：1744013