Dual ESP With Single Y-Tool & Pump Support - Redundancy
System 05: Y-Tool Only Completions
- ESP Gauge
- ESP Motor
- MLE Protector
- MLE Cable
- ESP Seal Protector
- ESP Pump Intake
- ESP Pump
- Discharge Pressure Sub
- Discharge Head
- Handling Sub
- Spear
- Pump Support Block
- Flush Joint Bypass Tubing
- Bypass Tubing Clamp
- Pump Sub
- Telescopic Swivel
- Bypass Nipple & Blanking Plug
- Y-Tool
- Top Nipple
- Handling Sub
- Production Tubing Connection
Normally the upper ESP is run until failure. Once failed, production can be resumed by starting the lower ESP. This extends production time and allows a workover to be planned to eliminate deferred production.
Switch over between ESPs can be done in a variety of ways. Automatic switch-over is achieved by either having ESP check valves above each pump, or incorporating a Y-valve.
Slickline switch-over is achieved by having a blanking plug in the Y-tool for producing the upper ESP, and replacing the blanking plug with an isolation sleeve for producing with the lower ESP.
Advantages
- Extends production by having redundancy in the event of primary ESP failure
Disadvantages
- No access to the reservoir below with the ESPs installed

