Title:
METHOD AND APPARATUS TO PREDICT FAILURE AND CONTROL VIBRATIONS IN A SUBSURFACE ARTIFICIAL LIFT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/136554
Kind Code:
A1
Abstract:
A monitoring and control apparatus communicates with an electrical drive of a subsurface artificial lift system to identify, predict and mitigate against failure of the artificial lift system. A monitoring and control apparatus: reads torque signals from the electrical drive or from a measurement device, produces a filtered torque signal; identifies frequency components of the filtered torque signal; compares the frequency components of the filtered torque signal with frequency components of a reference torque signal indicative of a healthy state of a pump motor of the artificial lift system to identify harmful frequencies in the filtered torque signal and generate a failure prediction index representing the likelihood of failure in comparison to a stable operation status; and then send a control signal to the electrical drive to adjust a frequency response of the pump motor so that the identified harmful frequency component is dampened.
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Inventors:
BADKOUBEH, Amir (Suite 900, 520 - 5th Avenue SWCalgary, Alberta T2P 3R7, T2P 3R7, CA)
MAHDI, Abbas (Suite 900, 520 - 5th Avenue SWCalgary, Alberta T2P 3R7, T2P 3R7, CA)
SCRUPA, Chris (Suite 900, 520 - 5th Avenue SWCalgary, Alberta T2P 3R7, T2P 3R7, CA)
MAHDI, Abbas (Suite 900, 520 - 5th Avenue SWCalgary, Alberta T2P 3R7, T2P 3R7, CA)
SCRUPA, Chris (Suite 900, 520 - 5th Avenue SWCalgary, Alberta T2P 3R7, T2P 3R7, CA)
Application Number:
CA2019/050021
Publication Date:
July 18, 2019
Filing Date:
January 07, 2019
Export Citation:
Assignee:
PSI TECHNOLOGIES INC. (Suite 900, 520-5th Avenue SWCalgary, Alberta T2P 3R7, T2P 3R7, CA)
International Classes:
E21B47/008; F04B49/06; F04C14/28; F04D15/00
Foreign References:
| US6709240B1 | 2004-03-23 | |||
| US7308322B1 | 2007-12-11 | |||
| US20070078614A1 | 2007-04-05 | |||
| US5629870A | 1997-05-13 | |||
| US20070005291A1 | 2007-01-04 |
Other References:
YIN LUO: "Induction motor current signature for centrifugal pump load", JOURNAL OF MECHANICAL ENGINEERING SCIENCE, 2015
ERNESTO WIEDENBRUG: "Predictive Maintenance of Mechanical Failures, using Electrical Measurements for Instantaneous Torque", A MODERN APPROACH, 2006, XP055626307
ERNESTO WIEDENBRUG: "Predictive Maintenance of Mechanical Failures, using Electrical Measurements for Instantaneous Torque", A MODERN APPROACH, 2006, XP055626307
Attorney, Agent or Firm:
LEE, Brian et al. (Gowling WLG LLP, Suite 2300 - 550 Burrard StreetVancouver, British Columbia V6C 2B5, V6C 2B5, CA)
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