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1. (WO2016060764) DETECTION OF CAVITATION OR GAS LOCK

Pub. No.:    WO/2016/060764    International Application No.:    PCT/US2015/049943
Publication Date: Fri Apr 22 01:59:59 CEST 2016 International Filing Date: Tue Sep 15 01:59:59 CEST 2015
IPC: F04D 15/00
F04D 15/02
F04D 13/10
E21B 43/12
Applicants: BAKER HUGHES INCORPORATED
Inventors: PRATHER, Josh T.
KIEWIET, Justin T.
CUNNINGHAM, Stephen J.
Title: DETECTION OF CAVITATION OR GAS LOCK
Abstract:
A system and method to identify a condition of cavitation or gas lock in a pump configured to convey a liquid to a surface from a subsurface environment via tubing are described. The system includes a tool to create a binary event based on the condition, the binary event representing a change in state of a parameter. The system also includes a sensor to detect the binary event based on the parameter, and a processor to process output from the sensor to identify the condition.