US 11,920,449 B2
System for centralized monitoring and control of electric powered hydraulic fracturing fleet
Joel N. Broussard, Lafayette, LA (US); Jeff McPherson, Fairmont, WV (US); Robert Kurtz, Fairmont, WV (US); Jared Oehring, Houston, TX (US); and Brandon Hinderliter, Houston, TX (US)
Assigned to U.S. WELL SERVICES, LLC, Houston, TX (US)
Filed by U.S. Well Services, LLC, Houston, TX (US)
Filed on Aug. 16, 2021, as Appl. No. 17/402,752.
Application 17/402,752 is a continuation of application No. 15/978,838, filed on May 14, 2018, granted, now 11,091,992, issued on Aug. 17, 2021.
Application 15/978,838 is a continuation of application No. 14/884,363, filed on Oct. 15, 2015, granted, now 9,970,278, issued on May 15, 2018.
Application 14/884,363 is a continuation in part of application No. 13/679,689, filed on Nov. 16, 2012, granted, now 9,410,410, issued on Aug. 9, 2016.
Prior Publication US 2022/0213772 A1, Jul. 7, 2022
Int. Cl. E21B 43/26 (2006.01)
CPC E21B 43/2607 (2020.05) 17 Claims
OG exemplary drawing
 
1. A system for hydraulically fracturing an underground formation in an oil or gas well to extract oil or gas from the formation, the oil or gas well having a wellbore that permits passage of fluid from the wellbore into the formation, the system comprising:
an electric pump fluidly connected to the well, and configured to pump fluid into the wellbore; and
a centralized control unit coupled to the electric pump, wherein the centralized control unit is configured to:
monitor the electric pump;
a variable frequency drive that controls a speed of the electric pump; and
a generator electrically connected to the electric pump to provide power to the electric pump, wherein the generator is powered by natural gas, and wherein the centralized control unit is further configured to monitor and control compression of the natural gas;
wherein the centralized control unit is further configured to reset a fault occurring in the variable frequency drive.