Abstract: An automatically controlled hydraulic fracturing pump system includes a hydraulic cylinder controlled via a hydraulic circuit; a sensor in communication with the hydraulic circuit; and a control module in data communication with the sensor. The control module has a memory storing computer-readable instructions; and a processor configured to execute said instructions to: (1) determine, via the sensor, an attribute about the hydraulic cylinder; (2) determine an attribute about the hydraulic fracturing pump system; (3) determine a value for correcting movement of the hydraulic cylinder; and (4) send a signal to the hydraulic circuit to adjust movement of the hydraulic cylinder.
Abstract: A method of controlling a high-pressure system having an engine, and a hydraulic pump having a swashplate includes inputting a maximum discharge pressure, a maximum allowable equipment pressure, a pressure relief valve (PRV) setting, a flowrate, and a maximum positive and negative rate of change of pressure; setting a work value to full power; setting a first position of the swashplate based on flowrate; determining: (a) if a discharge pressure is greater than the PRV setting; (b) if the discharge pressure is greater than the maximum allowable equipment pressure; and (c) if a rate of change of pressure is greater than the maximum positive rate of change of pressure or the maximum negative rate of change of pressure; and upon the occurrence of any of steps (a)-(c): (d) activating a PRV in the system; (e) setting the swashplate position to neutral; and (f) reducing the power to zero.
Type:
Grant
Filed:
August 23, 2019
Date of Patent:
September 14, 2021
Assignee:
Impact Solutions AS
Inventors:
Terje Stokkevåg, Oddgeir Husøy, Paul George