双塔井架制造工艺分析

发布时间：2018-05-28 03:18

本文选题：双塔井架 + 制造工艺　；参考：《上海交通大学》2015年硕士论文

【摘要】：海洋井架是海洋钻井设备模块的关键设备,不仅承受着来自海洋工况的水平载荷,更承担着钻井过程中所有的垂直载荷,同时它又支撑安装着钻井提升装置、旋转装置以及立管装置和泥浆处理装置等设备。为保证井架主体有足够的强度、刚度和整体的稳定性,需要采用合适的制造工艺来控制井架的制造质量。本文通过对双塔井架结构特点和技术标准的研究,得出了一套适合井架制造的工艺。本文以钩载907吨/400吨的双塔井架为案例来研究海洋井架的制造工艺。海洋井架具有结构庞大,主梁跨度大,设备配置复杂等特点,一般采用单件制作、多件运输、船厂分面拼装、分段立装、整体吊装的方式组装。本课题研究的双塔井架为桁架结构,井架主体在车间内单件制造,车间外分段预装,通过预拼装检验制造质量和准确性。利用工厂的场地设备,顺利完成井架主体的建造工作。重点研究了双塔井架主体结构的焊接工艺和焊接裂纹及焊接变形的问题。通过理论及实践研究,得出了一套满足设计要求的海洋井架的焊接工艺和焊接质量控制的措施。海洋井架由于运输机起吊等条件的限制,井架主体不能整体安装。为了能确保海洋井架制造的整体性和准确性,根据井架的特点和技术要求,结合公司场地设备的具体情况,提出了合适的预拼装工艺。
[Abstract]:The offshore Derrick is the key equipment of the offshore drilling equipment module. It not only bears the horizontal load from the offshore working condition, but also bears all the vertical loads during the drilling process. At the same time, it supports and installs the drilling hoisting device. Rotating devices and risers and mud handling devices and other equipment. In order to ensure sufficient strength, stiffness and overall stability of the Derrick body, it is necessary to adopt appropriate manufacturing process to control the manufacturing quality of the Derrick. Based on the study of the structural characteristics and technical standards of the double tower Derrick, a set of technology suitable for the manufacture of the Derrick is obtained in this paper. In this paper, a double tower Derrick with a hook load of 907 tons / 400 tons is taken as an example to study the manufacturing process of the marine Derrick. The offshore Derrick has the characteristics of large structure, large span of main beam and complex equipment configuration. It is generally composed of single piece manufacture, multi-piece transportation, shipyard split-face assembly, piecewise erection and integral hoisting. The double tower Derrick studied in this paper is a truss structure. The main body of the Derrick is manufactured in a single piece in the workshop, and the preassembly outside the workshop is used to verify the quality and accuracy of the manufacture. Make use of the site equipment of the factory, complete the construction work of Derrick main body smoothly. The welding process, welding crack and welding deformation of the main structure of double tower Derrick are studied. Through theoretical and practical research, a set of welding technology and welding quality control measures for offshore Derrick which meet the design requirements are obtained. The main body of the Derrick can not be installed as a whole due to the hoisting condition of the conveyer. In order to ensure the integrity and accuracy of the marine Derrick manufacture, according to the characteristics and technical requirements of the Derrick, combined with the specific conditions of the company's site equipment, a suitable pre-assembly process is put forward.
【学位授予单位】：上海交通大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：U671;U674.381

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