地面驱动螺杆泵选型软件设计

发布时间：2018-03-09 08:35

本文选题：地面驱动螺杆泵　切入点：选型　出处：《长江大学》2012年硕士论文　论文类型：学位论文

【摘要】：螺杆泵是一种旋转容积泵。作为一种新兴的人工举升方式,它具有结构简单、流量均匀、扰动小、携带能力强等优点,特别适宜于高含砂量、高粘度和高含气量原油的举升。在油田开采中,发挥着巨大的作用。随着螺杆泵技术的发展,现在螺杆泵在油田的使用越来越普遍了,相应的油田用螺杆泵的型号、规格越来越多,螺杆泵的选型问题就显得越来越重要了。通常情况下采用的是人工选型,根据泵的工作介质、工作压力、工作流量、电机安装型式等已知条件,从众多的样本数据中选出符合条件的螺杆泵。人工选型需要工作人员先列出原始的数据,然后估算出泵的流量和压头,再根据结果来选择泵的类型及型号,最后还要进行核算之后才能实际应用。这样的方法不仅效率低,而且容易出错。本文研究一种利用visual basic6.0和Microsoft Office Access2003作为开发平台,以地面驱动螺杆泵为选型对象,开发出地面驱动螺杆泵选型软件,该软件主要有以下几个模块：用户登录模块,该模块只允许特定的用户登录和使用本软件,保证了软件的保密性和安全性。数据库模块,该模块建立了各型号螺杆泵及油井参数的动态数据库,使用者可以随时增加、修改、删除数据库中的内容,并能备份和恢复修改后的数据库。设备选型模块,该模块能从井况数据库中调入油井参数,并运用已有的经验公式计算出螺杆泵的理论杨程和转排量,然后通过对比螺杆泵数据库,选出符合条件的型号,并导出该型号的具体参数及相关资料。杆柱校核模块,该模块通过导入已选定的螺杆泵的具体参数,计算出螺杆泵杆柱的轴向载荷和扭矩,并利用第四强度理论进行强度校核。故障诊断模块,该模块集成了生产实践中电流诊断、扭矩诊断、油井产液三大诊断方法,使用者只需要输入相应的表征,便可以选择出故障的形势和解决方法。利用该软件可以快速准确的选出合适的螺杆泵,既提高了工作效率又提高了选型的准确性,避免了由于泵选型不当而引发的问题,又省去了查阅样本的麻烦。尤其在复杂工况下,选择合适的型号,不仅可以降低成本,延长泵的使用寿命,还可以提高工作效率和系统的稳定性；同时利用该软件还可以对已选的螺杆泵进行杆柱校核和故障诊断,进一步确保了选出的泵型能满足油田现场的实际要求和无故障的正常采油。本文所介绍的方法也为实现计算机辅助生产管理提供了一条途径。
[Abstract]:Screw pump is a kind of rotary volumetric pump. As a new way of manual lifting, it has the advantages of simple structure, uniform flow rate, small disturbance, strong carrying capacity, etc. It is especially suitable for high sand content. Lifting of crude oil with high viscosity and high gas content. It plays a great role in oilfield production. With the development of screw pump technology, the use of screw pump in oil field is becoming more and more common. The corresponding type of screw pump used in oil field, With more and more specifications, the selection of screw pump is becoming more and more important. In general, manual selection is used, according to the known conditions of pump working medium, working pressure, working flow, motor installation type, etc. Select the suitable screw pump from a large number of sample data. The manual selection requires the staff to first list the original data, then estimate the flow rate and pressure head of the pump, and then select the type and type of the pump according to the results. This method is not only inefficient but also error-prone. In this paper, using visual basic6.0 and Microsoft Office Access2003 as the development platform and taking the ground driven screw pump as the selection object, the paper develops a software for the selection of the ground driven screw pump. The software has the following modules:. User login module, this module only allows specific users to log in and use the software, which ensures the confidentiality and security of the software. Database module, this module has established the dynamic database of the parameters of each type screw pump and oil well, the user can add, modify, delete the contents of the database at any time, and can backup and restore the modified database. Equipment selection module, this module can transfer well parameters from the well condition database, and use the existing empirical formula to calculate the theoretical poplar and displacement of screw pump, then by comparing the screw pump database, select the eligible model. The specific parameters and relevant data of the model are derived. By introducing the selected parameters of the screw pump, the axial load and torque of the screw pump are calculated, and the strength is checked by the 4th strength theory. The fault diagnosis module integrates three diagnostic methods of current diagnosis torque diagnosis and oil well liquid production in production practice. The user can select the fault situation and solution only by inputting the corresponding representation. By using this software, the suitable screw pump can be selected quickly and accurately, which not only improves the working efficiency but also improves the accuracy of the type selection, and avoids the problems caused by the improper selection of the pump. Especially under complex working conditions, choosing the appropriate model can not only reduce the cost, prolong the service life of the pump, but also improve the working efficiency and the stability of the system. At the same time, the software can also be used to check the rod column and diagnose the fault of the selected screw pump. It is further ensured that the selected pump type can meet the actual requirements of the oil field and the normal oil production without fault. The method introduced in this paper also provides a way to realize the computer-aided production management.
【学位授予单位】：长江大学
【学位级别】：硕士
【学位授予年份】：2012
【分类号】：TP311.52;TH327

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