Improving fault detectability through controller reconfiguration
AssigneeHalliburton Energy Services, Inc.
InventorsJason D. Dykstra, Zhijie Sun
Life of this patent
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Abstract
A method of detecting a fault in an oil and gas apparatus controlled by a controller is provided. The method includes collecting a test set of data using a sensor proximate to an oil and gas apparatus during the operation of the oil and gas apparatus under test operating conditions, the test set of data being associated with an operating parameter of the controller, determining a percentage of the test set of data that falls outside a normal operation region of the oil and gas apparatus, and configuring the controller in response to the percentage being between a fault-free percentage threshold and a fault percentage threshold.
Claims20
A method of detecting a fault in an oil and gas apparatus controlled by a controller, the method comprising:
- collecting a test set of data using a sensor proximate to an oil and gas apparatus during the operation of the oil and gas apparatus under test operating conditions, the test set of data being associated with an operating parameter of the controller;
- determining a percentage of the test set of data that falls outside a normal operation region of the oil and gas apparatus;
- and
- configuring the controller in response to the percentage being between a fault-free percentage threshold and a fault percentage threshold, wherein the percentage being between the fault-free percentage threshold and the fault percentage threshold is indicative of an inconclusive finding of the oil and gas apparatus.
An oil and gas apparatus control system for detecting a fault in the oil and gas apparatus, the oil and gas apparatus control system comprising:
- a sensor that collects a test set of data during the operation of the oil and gas apparatus control system under test operating conditions, the test set of data being associated with an operating parameter;
- a controller that determines, using a processor, a percentage of the test set of data that falls outside a normal operation region, and configures the operating parameter of the controller in response to the percentage being between a fault-free percentage threshold and a fault percentage threshold, wherein the percentage being between the fault-free percentage threshold and the fault percentage threshold is indicative of an inconclusive finding of the oil and gas apparatus;
- and
- an oil and gas apparatus controlled by the controller from which the sensor collects the test set of data.
A controller configured to control an oil and gas apparatus and detect a fault in the oil and gas apparatus, the controller comprising:
- an input device that receives a test set of data during the operation of the system under test operating conditions, the test set of data being associated with an operating parameter of the controller;
- a data reservoir that stores the test set of data, a normal set of data, a normal operation region, a fault-free percentage threshold, and a fault percentage threshold;
- a processor that determines a percentage of the test set of data that falls outside the normal operation region, and configures the operating parameter of the controller in response to the percentage being between the fault-free percentage threshold and the fault percentage threshold, wherein the percentage being between the fault-free percentage threshold and the fault percentage threshold is indicative of an inconclusive finding of the oil and gas apparatus;
- and
- an output device that transmits the operating parameter to the system.
Dependencies are inferred from the claim text.