Positive displacement pump monitor
AssigneeSchlumberger Technology Corporation
InventorsToshimichi Wago, Jean-Louis Pessin, Nathan St. Michel
Life of this patent
Estimating the term…
Abstract
A positive displacement pump monitor. The monitor includes a sensor coupled to a housing of a pump for obtaining acoustic data therefrom. A proximity switch may be simultaneously used to keep real time timing information relative to the cycling of the pump. A data processor of the monitor may then be employed to analyze acoustic data and timing information to distinguish acceptable noise from leak information. An operator thereby may be warned of the presence of a leak in the pump.
Claims23
A monitor for a positive displacement pump, the monitor comprising:
- a sensor coupled to the pump to obtain acoustic data therefrom during operation of the pump, the acoustic data comprising strike acoustic data and non-strike acoustic data;
- and
- a data processor coupled to the sensor to use the acoustic data and timing information relative to the pump during operation to decipher acoustic data from the strike acoustic data and non-strike acoustic data that is leak information.
A positive displacement pump assembly comprising:
- a positive displacement pump having a plunger for effecting pressurization on a chamber of the pump for pushing a fluid therethrough during an operation;
- and
- a monitor having a sensor coupled to the pump to obtain acoustic data from the operation, the acoustic data comprising strike acoustic data and non-strike acoustic data, and a data processor coupled to the sensor to use timing information relative to the pump during the operation and the acoustic data to decipher acoustic data from the strike acoustic data and non-strike acoustic data that is leak information indicative of a leak of the fluid into the chamber.
A method of monitoring a positive displacement pump, the method comprising:
- operating the pump;
- obtaining acoustic data from the pump, the acoustic data comprising strike acoustic data and non-strike acoustic data;
- recording timing information relative to said operating of the pump;
- and
- analyzing the acoustic data in light of the timing information to decipher acoustic data from the strike acoustic data and non-strike acoustic data that is leak information.
A method of monitoring positive displacement pumps in a pressurized application, the method comprising:
- operating the pumps simultaneously;
- obtaining acoustic data from each of the pumps, the acoustic data comprising strike acoustic data and non-strike acoustic data;
- recording timing information relative to each of the pumps during said operating;
- and
- analyzing the acoustic data for each of the pumps in relation to the timing information for each pump to decipher acoustic data from the strike acoustic data and non-strike acoustic data that is leak information.
Dependencies are inferred from the claim text.