Research And Application Of Parametric Technology On Completion Column

As the most important stage of CAD,parametric technology can avoid repeated modeling of the analogous products,improve the efficiency of product design,and then the whole construction cycle can be shortened.At present,the application of parametric technology on the well completion project is mainly limited to the solid modeling,finite element analysis of single downhole tool.Overall the research of parametric design on the whole column and the composite design of downhole tools is still at the beginning.Beginning with the principle and method of parametric technology, this paper researches the technology of developing a parametric system. Based on Pro/Engineer software,it builds the parametric design system of completion well column, by the two steps of building parametric modeling library and parametric assembling models.Firstly,the paper analyses the system,and divides parametric design modular to four submodulars:part parametric design modular, assembly modular,database modular and data interface modular;then using UDF to complete parametric modeling of the part.It builds the model database of downhole tools and the assembly relation database,and realizes the downholes' parametric assemble design. A user-friend interface is developed by using technique of menu and UI dialog-box.The development of completion column' parametric design system changes traditional 2D-design method.It will not only improve the quality and efficiency of completion design,but also can be referenced to further more research on dynamical analysis of completion column.All that fulfils the need of modern well completion engineer.