Usage : the centralizer makes the casing pipe at the center of the well . such can make cement ring even and better quality 产品说明用途:扶正套管使套管在井眼内居中,使水泥环均匀,提高固井质量。
Petroleum and natural gas industries - equipment for well cementing - part 2 : centralizer placement and stop - collar testing iso 10427 - 2 : 2004 ; english version en iso 10427 - 2 : 2004 石油和天然气工业.固井用设备.第2部分:扶正器的放置
Using the - threshold , some definitions of the anti - fuzzy subgroups , anti - fuzzy normal subgroups , anti - fuzzy normalize and anti - fuzzy centralizer are introduced . some properties of anti - fuzzy subgroups are discussed 摘要本文利用-截集引入了反模糊子群、反模糊正规子群、反模糊正规化子及反模糊中心化子的概念,并讨论了它们的性质。
Rough and fine cutting , drilling and boring can be conducted for petroleum drill devices such as drill collar , integral heavy wall drill pipe , centralizer as well as other large - sized and super long axis parts with diameter less than 1600mm and length less than 18000mm 在此可以对钻铤、加重钻杆、扶正器等石油钻具和其他直径小于1600毫米、长度小于18000毫米的大型、超长轴类零件进行粗、精车削和钻、镗加工。
At the foundation of analysing the principium and process of centralizer very well , the paper makes the research for the centralizer more perfect for applying the mothod of optimal design of mechine and simulation of vpt ( virtual prototyping technology ) 本文在深入分析水平井牵引机器人扶正器的工作原理和工作过程的基础上,应用机械优化设计的方法和虚拟样机技术仿真的手段,完善了对水平井牵引机器人扶正器的研究。
First of all , it introduces the process of applying pro / e and adams to simulate . whereafter , it builds the three - dimensional model of centralizer in pro / e , and transmits it to adams by the interface software mechanism / pro . and then , it tests and validates the virtual prototyping and performaces the kinematic simulation 对扶正器在进行虚拟样机技术仿真时,本文完成了如下的工作:首先介绍了利用pro / e和adams联合仿真的流程,然后按照仿真流程在pro / e环境下建立了扶正器的三维模型,将其通过接口软件mechanism / pro处理后导入到adams环境中,接着在adams中对虚拟样机进行了调整和验证,并对扶正器虚拟样机进行了运动学仿真。
First of all , it introduces and analyses the principium and process of the centralizer . whereafter , it builds the physical model and mathematic model for the centraliser . finally , it programs in matlab optimization toolbox to optimize the length of arms and the parameters of springs , gets the results and even analyses the capability of the centralizer before and after the optimization 对扶正器进行机械优化设计时,本文完成了如下的工作:首先介绍和分析了扶正器的工作原理和工作过程,然后建立了扶正器的物理模型和数学模型,最后用matlab优化工具箱编程对扶正器支撑臂长度和弹簧参数进行了优化,得出了优化结果,并分析了优化前后的扶正器的性能。