US 12,253,075 B2
Detecting events in progressing cavity pump operation and maintenance based on anomaly and drift detection
Bartosz Boguslawski, Grenoble (FR); Loryne Bissuel-Beauvais, Montréal (CA); and Matthieu Boujonnier, Boston, MA (US)
Assigned to Schneider Electric Systems USA, Inc., Foxborough, MA (US)
Filed by Schneider Electric Systems USA, Inc., Foxborough, MA (US)
Filed on Dec. 28, 2021, as Appl. No. 17/564,095.
Prior Publication US 2023/0272792 A1, Aug. 31, 2023
Int. Cl. F04B 49/06 (2006.01); E21B 47/008 (2012.01); F04B 47/00 (2006.01); F04B 49/10 (2006.01)
CPC F04B 49/065 (2013.01) [E21B 47/008 (2020.05); F04B 47/00 (2013.01); F04B 49/103 (2013.01); F04B 2203/0209 (2013.01); F04B 2207/70 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for monitoring a progressing cavity pump (PCP) at a well site, comprising:
a processor; and
a storage device coupled to the processor and storing computer-readable instructions for an event monitor and detector thereon;
wherein the event monitor and detector, when executed by the processor, causes the processor to:
sample data relating to operation of the PCP at the well site, the data representing parameters that affect PCP operation at the well site;
convert each set of sampled data to a data point, except for sampled data indicating that the PCP was non-operational;
compute a novelty score for each data point that falls outside a normal operating space for the PCP, the novelty score indicating a distance between the data point and the normal operating space;
obtain a count of data points where the novelty score exceeds a threshold novelty score within a rolling detection window; and
initiate a responsive action in response to the count exceeding an event threshold count, the responsive action including at least one of: issuing an alert message to a control system notifying that an event has occurred, logging a date and time for the event, adjusting a motor speed of the PCP, or shutting off power to the PCP.