Rod-pump controller
AssigneeWilliams NR Automation LLC
InventorJason Williams
Life of this patent
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Abstract
A rod-pump control device is disclosed. The claimed rod-pump control device uses fuel or air usage for gas units, and can use pressure. The sensors work as the primary trigger to indicate a pump-off condition on an oil and gas well. These sensors can be used as stand-alone triggers or in conjunction with other sensors to more accurately monitor pump efficiency. When the pump-controller starts to indicate an inefficient pump condition, it will remove power to disengage an electric clutch or send a signal to an engine controller to stop. An adjustable algorithm will use percentage change of off time, dependent on actual run time compared to a user definable target time to keep the pump operating at peak efficiency.
Claims17
A rod-pump control device comprising:
- (a) a power sensor configured to measure a power used by a rod pump, wherein the power sensor includes at least one of the group consisting of a fuel-consumption sensor configured to monitor fuel consumed by a gas-powered rod pump and an air-consumption sensor configured to monitor air consumed by a gas-power rod pump;
- and
- (b) a control circuit connected to the power sensor and configured to read a power measurement from the power sensor and to selectively disable the rod pump based on the power measurement.
A method for controlling operation of a gas-powered rod pump, the method comprising:
- (a) measuring a power used by the gas-powered rod pump using a power sensor that includes at least one of the group consisting of a fuel-consumption sensor configured to monitor fuel consumed by the gas-powered rod pump and an air-consumption sensor configured to monitor air consumed by the gas-power rod pump;
- and
- (b) disabling the rod pump based on the measured power.
Dependencies are inferred from the claim text.