ESP Operating Point Analysis
Spreadsheet
29 rows x 6 columns
| A | B | C | D | E | F | |
|---|---|---|---|---|---|---|
| 1 | ESP Operating Point Analysis | |||||
| 2 | Well Data | |||||
| 3 | Pump Setting Depth (TVD) | 6000 | ft | |||
| 4 | Wellhead Pressure (WHP) | 150 | psia | |||
| 5 | Reservoir Pressure (Pr) | 2500 | psia | |||
| 6 | Productivity Index (PI) | 3 | STB/D/psi | |||
| 7 | Fluid SG | 0.9 | dimensionless | |||
| 8 | Tubing ID | 2.992 | in | |||
| 9 | Tubing Length | 6200 | ft | |||
| 10 | ||||||
| 11 | Pump Curve Data | |||||
| 12 | Q (bbl/D) | 500 | 1000 | 1500 | 2000 | 2500 |
| 13 | Head (ft/stg) | 32 | 30 | 27 | 22 | 15 |
| 14 | Efficiency (frac) | 0.35 | 0.5 | 0.58 | 0.55 | 0.4 |
| 15 | ||||||
| 16 | System Analysis | |||||
| 17 | Q (bbl/D) | Hfric (ft) | TDH (ft) | Head/stg (ft) | Eff (frac) | Stages |
| 18 | 500 | 6.337816005 | 402.4489271 | 32 | 0.35 | 13 |
| 19 | 1000 | 22.84783843 | 846.7367273 | 30 | 0.5 | 29 |
| 20 | 1500 | 48.37421697 | 1300.040884 | 27 | 0.58 | 49 |
| 21 | 2000 | 82.36649981 | 1761.810944 | 22 | 0.55 | 81 |
| 22 | 2500 | 124.4612433 | 2231.683465 | 15 | 0.4 | 149 |
| 23 | ||||||
| 24 | Key Results | |||||
| 25 | BEP Rate (bbl/D) | 1638 | bbl/D | |||
| 26 | BEP Efficiency | 0.5843827041 | fraction | |||
| 27 | Hydraulic HP at BEP | 14.05959968 | HP | |||
| 28 | Brake HP at BEP | 24.05889082 | HP | |||
| 29 | Motor HP (1.1x safety) | 26.46477991 | HP |
Description
Determine the ESP operating point by intersecting the pump performance curve (head vs rate) with the system curve (TDH vs rate). Size the pump (number of stages), check BEP proximity, and calculate motor requirements. The operating point must fall within the pump's recommended range for reliable operation.
Design check: Operating rate should be 80-120% of BEP rate. Operating below minimum rate causes downthrust damage; above maximum causes upthrust and cavitation.
Workflow
- Inputs: Well data (TVD, WHP, Pr, PI), pump curve data (Q, Head, Efficiency)
- Step 1: Compute TDH at several flow rates using system curve
- Step 2: Find pump head per stage and efficiency at each rate from performance curve
- Step 3: Size pump (stages), calculate power, check operating range
- Output: Operating point, pump sizing, motor selection
How to use this blueprint
- In Excel, go to the Petroleum Office ribbon tab and click Blueprint Manager
- Search for ESP Operating Point Analysis
- Click on the blueprint to preview the spreadsheet template
- Click Insert to place it into your worksheet. Modify the input values to match your data.