Loading...

Design, Analysis and Prototyping of Cylindrical Electropump with Radial Space Limit

Modarressi, Vala | 2022

211 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 54997 (08)
  4. University: Sharif University of Technology
  5. Department: Mechanical Engineering
  6. Advisor(s): Arghavani Hadi, Jamal
  7. Abstract:
  8. Inflatable packers are a class of downhole equipments that are used for oilwell pluging operations. To set the packer inside the well, it is necessary to apply hydraulic pressure to it. By using the setting tool and installing an electropump in it, it is possible to transfer the fluid into the packer and supply the required pressure. In this research, an electropump has been designed and built that, firstly, is dimensionally suitable for the conditions of oil wells and, secondly, can have a good performance in the environmental conditions inside the well. This electropump, which can be used in a 2.125-inch setting tool, consists of a brushless direct current motor and a piston pump. To test the electropump, a setup is made to measure the amount of pump outlet pressure. Electropump performance test is performed in three steps; First, the no-load test of the motor was performed at a temperature of 95° C for 5 hours, then the fluidless test of the electropump was performed with the aim of accurately checking the performance of the pump mechanisms, and finally the pressure test of the electropump was performed. Due to the fact that in the setting tool, the battery is used as the power supply of the electromotor, the amount of input current to the motor is limited, which leads to a decrease in motor torque. Therefore, the outlet pressure of the pump has finally reached 27 bar, which is equivalent to 63% of the pressure that can ideally be achieved using the limited motor torque. With the use of hydraulic pressure intensifier, the amount of pressure applied to the packer is increased to more than 240 bar, which will be enough to set 2.125 inch packers
  9. Keywords:
  10. Oil Wells ; Inflatable Packer ; Coiled Tube ; Brushless Direct Current (BLDC)Motor ; Piston Pump ; Setting Tool

 Digital Object List

 Bookmark

No TOC