Most recently, BP deployed the REDA double electric submersible pump (ESP) unit from Schlumberger Oilfield Services at the Waqifam Oilfield in the UK. This innovative system is designed to significantly reduce the frequency of workovers by extending the operational life of the ESPs, marking a major advancement in managing aging fields, especially in environmentally sensitive regions.
Considering the dynamic changes in reservoir conditions during oil recovery, the upper and lower ESPs are configured with different structural designs. These configurations were carefully planned to address potential future conversion challenges between the two pumps. The lower ESP was initially put into production with a 125-horsepower motor, while the upper ESP was equipped with an additional pump stage and a 150-horsepower motor to maintain the desired flow rate as water cut increased over time.
In addition, advanced gas handling procedures will help manage the gas-oil ratio effectively throughout the production lifecycle. To ensure optimal production performance as reservoir conditions evolve, BP plans to switch to the upper ESP for production after approximately two and a half years.
The system can also be integrated with a 24-hour monitoring solution—the Phoenix Multi-Sensor I Meter—which continuously measures and optimizes key parameters such as pump inlet and discharge pressure, inlet temperature, motor winding temperature, vibration levels, and potential leakage. This real-time data collection enables more informed decision-making and enhances overall operational efficiency.
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