| Title | Advanced Electric Submersible Pump Design Tool for Geothermal Applications |
|---|---|
| Authors | Xuele Qi; Turnquist, Norman; Ghasripoor, Farshad |
| Year | 2012 |
| Conference | Geothermal Resources Council Transactions |
| Keywords | Electrical submersible pumps; Enhanced Geothermal Systems; design tool; mixed-flow centrifugal pump; impeller; diffuser; CFD |
| Abstract | Electrical Submersible Pumps (ESPs) present higher efficiency, larger production rate, and can be operated in deeper wells than the other geothermal artificial lifting systems. Enhanced Geothermal Systems (EGS) applications recommend lifting 300°C geothermal water at 80kg/s flow rate in a maximum 10- 5/8” diameter wellbore to improve the cost-effectiveness. In this paper, an advanced ESP design tool comprising a 1D theoretical model and a 3D CFD analysis has been developed to design ESPs for geothermal applications. Design of Experiments was also performed to optimize the geometry and performance. The designed mixed-flow type centrifugal impeller and diffuser exhibit high efficiency and head rise under simulated EGS conditions. The design tool has been validated by comparing the prediction to experimental data of an existing ESP product. |