7LZ172金属螺杆马达研制
发布时间：2018-10-20 07:25
【摘要】：螺杆钻具作为一种容积式井下动力钻具,被广泛应用于钻井作业之中,具有良好的效果。然而当下随着钻井深度的不断增加,井底温度不断升高,对钻具的耐高温性能要求越来越高。常规螺杆钻具中,由于其核心部件马达中的定子由橡胶材料制成,由于橡胶材料自身的特性,越来越难以应对深井、超深井钻井工况中的高温、腐蚀、磨损工况,因此设计不含有橡胶部件的,金属材料制成的螺杆马达具有十分重要的意义。为设计金属螺杆马达,本文首先对螺杆马达的工作原理、工作特性进行了分析,特别是对实现其结构及功能的螺杆马达线型进行了分析,选用了普通内摆线等距线型作为所设计7LZ172单级金属螺杆马达的线型,计算了马达的关键参数。将金属螺杆马达定、转子间的配合关系由常规螺杆马达中的过盈配合改为间隙配合,完成了马达的设计并使用Creo Parametric软件建立了不同间隙值下马达的三维实体模型。通过对螺杆马达工作原理及工作特性的分析,选择压降为目标参数,使用ANSYS Fluent软件对所建立7LZ172单级金属螺杆马达三维实体模型进行流场仿真分析,分析了间隙值、钻井液性能等不同参数对马达性能的影响。分别采用电解加工工艺和数控机床螺旋铣削加工工艺分别进行了7LZ172单级金属螺杆马达定、转子样件的加工,通过交叉配合获得了多组不同间隙值的螺杆马达,设计并实施了常温增压测试试验,对试验结果进行了分析。
[Abstract]:As a kind of displacement downhole power drilling tool, screw drill tool is widely used in drilling operation and has good effect. However, with the increasing of drilling depth, the bottom hole temperature is increasing, and the high temperature resistance of drilling tools is becoming more and more important. In conventional screw drilling tools, because the stator in the motor, its core component, is made of rubber material, because of the characteristics of the rubber material itself, it is becoming more and more difficult to cope with the high temperature, corrosion and wear conditions in the drilling conditions of deep wells and ultra-deep wells. Therefore, it is very important to design screw motor made of metal material without rubber parts. In order to design the metal screw motor, the working principle and working characteristics of the screw motor are analyzed in this paper, especially the linear shape of the screw motor which realizes its structure and function. The general inner cycloid equidistant line is selected as the linear type of the 7LZ172 single stage metal screw motor. The key parameters of the motor are calculated. The fit relationship between rotor and stator of metal screw motor was changed from interference fit in conventional screw motor to clearance fit. The design of motor was completed and the 3D solid model of motor with different clearance values was established by using Creo Parametric software. Based on the analysis of the working principle and working characteristics of the screw motor, the pressure drop is selected as the target parameter, and the flow field simulation analysis of the 7LZ172 single-stage metal screw motor three-dimensional solid model is carried out by using ANSYS Fluent software, and the gap value is analyzed. Effects of drilling fluid performance and other parameters on motor performance. The 7LZ172 single-stage metal screw motor and rotor sample were machined by electrolytic machining and NC machine helical milling respectively, and many groups of screw motors with different clearance values were obtained by cross-matching. Design and implement the test of pressurization at room temperature, and analyze the test results.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE921
本文编号：2282457
[Abstract]:As a kind of displacement downhole power drilling tool, screw drill tool is widely used in drilling operation and has good effect. However, with the increasing of drilling depth, the bottom hole temperature is increasing, and the high temperature resistance of drilling tools is becoming more and more important. In conventional screw drilling tools, because the stator in the motor, its core component, is made of rubber material, because of the characteristics of the rubber material itself, it is becoming more and more difficult to cope with the high temperature, corrosion and wear conditions in the drilling conditions of deep wells and ultra-deep wells. Therefore, it is very important to design screw motor made of metal material without rubber parts. In order to design the metal screw motor, the working principle and working characteristics of the screw motor are analyzed in this paper, especially the linear shape of the screw motor which realizes its structure and function. The general inner cycloid equidistant line is selected as the linear type of the 7LZ172 single stage metal screw motor. The key parameters of the motor are calculated. The fit relationship between rotor and stator of metal screw motor was changed from interference fit in conventional screw motor to clearance fit. The design of motor was completed and the 3D solid model of motor with different clearance values was established by using Creo Parametric software. Based on the analysis of the working principle and working characteristics of the screw motor, the pressure drop is selected as the target parameter, and the flow field simulation analysis of the 7LZ172 single-stage metal screw motor three-dimensional solid model is carried out by using ANSYS Fluent software, and the gap value is analyzed. Effects of drilling fluid performance and other parameters on motor performance. The 7LZ172 single-stage metal screw motor and rotor sample were machined by electrolytic machining and NC machine helical milling respectively, and many groups of screw motors with different clearance values were obtained by cross-matching. Design and implement the test of pressurization at room temperature, and analyze the test results.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TE921
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相关硕士学位论文 前1条
1 刘思瀛;7LZ172金属螺杆马达研制[D];西安石油大学;2016年
，本文编号：2282457
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