US 12,404,756 B2
Torsional coupling for electric hydraulic fracturing fluid pumps
Joel N. Broussard, Lafayette, LA (US); Jeff McPherson, Spring, TX (US); Robert Kurtz, Fairmont, WV (US); and Jared Oehring, 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 Jan. 10, 2023, as Appl. No. 18/095,197.
Application 18/095,197 is a continuation of application No. 17/379,651, filed on Jul. 19, 2021, granted, now 11,549,346, issued on Jan. 10, 2023.
Application 17/379,651 is a continuation of application No. 15/581,625, filed on Apr. 28, 2017, granted, now 11,066,912, issued on Jul. 20, 2021.
Application 15/581,625 is a continuation of application No. 14/622,532, filed on Feb. 13, 2015, granted, now 9,650,879, issued on May 16, 2017.
Application 14/622,532 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 2023/0417131 A1, Dec. 28, 2023
Int. Cl. E21B 43/26 (2006.01); F04B 9/02 (2006.01); F04B 17/03 (2006.01); F04B 47/00 (2006.01); F04D 29/044 (2006.01); F04D 29/66 (2006.01)
CPC E21B 43/2607 (2020.05) [E21B 43/26 (2013.01); F04B 9/02 (2013.01); F04B 17/03 (2013.01); F04B 47/00 (2013.01); F04D 29/044 (2013.01); F04D 29/66 (2013.01)] 16 Claims
OG exemplary drawing
 
13. A system for conducting hydraulic fracturing operations in a well, comprising:
hydraulic fracturing equipment having a hydraulic fracturing equipment shaft;
an electric motor with a motor shaft coupled to and driving the hydraulic fracturing equipment;
a variable frequency drive and an alternating current console to control the speed of the electric motor to protect against overheating; and
a torsional coupling connecting the motor shaft to the hydraulic fracturing equipment shaft, the torsional coupling comprising:
a motor component coupled to the motor shaft of the electric motor; and
a hydraulic fracturing equipment component coupled to the hydraulic fracturing equipment shaft of the hydraulic fracturing equipment, the motor component engaging the hydraulic fracturing equipment component to drive operation of the hydraulic fracturing equipment when the electric motor shaft rotates; and
the system further comprising buffers between the hydraulic fracturing equipment component and the motor component.