Schlumberger’s New Electric Surface Actuator

The all-electric actuator lowers your opex by up to 30% via reliable, long-term remote control of surface valves as well as condition-based monitoring and money-saving predictive maintenance. By eliminating unnecessary site visits and personnel on location, these actuators enable you to rethink platform design, potentially removing costly structures such as helidecks, living quarters, and control rooms. Reducing maintenance visits also decreases CO2 emissions. Asset field crews can run leaner because technicians are better informed about the maintenance required.

Hydraulic actuators require periodic control fluid replacement and disposal and are sensitive to control fluid contamination. They must be monitored for leaking control lines, consume more energy, and require bulky generators and pump motors, which occupy additional space and create higher CO2 emissions. The all-electric actuator can use alternative energy sources (including solar or wind) or electric umbilical or battery power.

Integrated sensors track actuator position and current in real time, and smart actuator controls enable dynamic monitoring and control of parameters such as the drive motor condition, winding temperature, housing fluid pressure, motor torque, stem leakage, and other associated alarm and health conditions.

Actuator designs are fail-close, using a clutch to disengage the valve from the electrical system and enable a mechanical spring to rapidly close the valve.

Courtesy of Schlumberger.
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