Design Of Temperature And Pressure Testing System For Submersible Electric Pump Units

The production of submersible electric pump is one of the main methods of oil field exploitation at home and abroad.In order to achieve the best effect of the oil well,it is necessary to know the production of the oil well at any time,to grasp the change of the pressure,temperature and other parameters in time,so as to take reasonable adjustment measures.At present,the corresponding test system is monopolized by a few foreign companies.It is of great significance to develop a set of temperature and pressure testing system for submersible pump unit.In order to fill the blank of this kind of products in our country,to solve the problem of difficult ordering and high price from foreign manufacturers,this paper develops a test system for the temperature and pressure of the submersible electric pump unit with independent intellectual property rights.The hardware circuit design of downhole data acquisition system is completed,sensor selection and signal conditioning circuit is designed,the voltage and current conversion circuit and the dual signal time division transmission circuit is designed.The design of the filter system and the design of insulation circuit are completed.Fully sealed impervious body for underground mining is invented and the mechanical mechanism of the device is designed.The ground system including the design of filter circuit,the design of power supply system,the design of data acquisition system,the design of display circuit,the design of current loop interface and the software system is completed.According to the indoor and field test,the temperature and pressure testing system can measure the temperature and pressure of the submersible electric pump stably and reliably,the measuring precision is within 0.5%,and the temperature deviation is less than 1.5?.The system can be used indoors or outdoors for a long time,and the operation is stable.The service life of system is basically equal to that of foreign companies,relative to imported equipment,the cost of test system is low,it can also provide the necessary accessories and aftersales service timely.