US 11,719,230 B2
Well servicing pump with electric motor
Filiberto Garcia, Houston, TX (US); Chris Harvell, Houston, TX (US); Chad Joost, Houston, TX (US); Brian Sharp, Houston, TX (US); and Paul Smith, Houston, TX (US)
Assigned to STEWART & STEVENSON LLC, Houston, TX (US)
Filed by STEWART & STEVENSON LLC, Houston, TX (US)
Filed on Nov. 13, 2020, as Appl. No. 17/98,137.
Claims priority of provisional application 62/935,542, filed on Nov. 14, 2019.
Prior Publication US 2021/0148348 A1, May 20, 2021
Int. Cl. F04B 17/03 (2006.01); F04B 53/08 (2006.01); F04B 47/02 (2006.01); E21B 43/26 (2006.01); F04B 53/00 (2006.01)
CPC F04B 17/03 (2013.01) [E21B 43/2607 (2020.05); F04B 47/02 (2013.01); F04B 53/006 (2013.01); F04B 53/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A hydraulic fracturing system comprising:
a hydration system;
a blender system, the blender system configured to receive a fluid flow from the hydration system; and
a well servicing pump, the well servicing pump including:
a first permanent magnet motor, the first permanent magnet motor including a first rotor;
a second permanent magnet motor, the second permanent magnet motor including a second rotor;
a crankshaft positioned in a power section;
a first gearbox, the first gearbox operatively coupled between the first rotor of the first permanent magnet motor and the crankshaft at a first end of the crankshaft;
a second gearbox, the second gearbox operatively coupled between the second rotor of the second permanent magnet motor and the crankshaft at a second end of the crankshaft;
a third permanent magnet motor, the third permanent magnet motor including a third rotor, the third permanent magnet motor positioned adjacent to and abutting the first permanent magnet motor, the third rotor is mechanically coupled to the first rotor, the first gearbox, and the crankshaft such that the third rotor is directly coupled to the first rotor and such that rotation of the third rotor is coaxial with the rotation of the first rotor;
a fluid section, the fluid section including an inlet, a pressurization chamber, and an outlet, the inlet and outlet fluidly coupled to the pressurization chamber; and
a plunger, the plunger mechanically coupled to the crankshaft, the plunger at least partially positioned within the pressurization chamber;
wherein the inlet of the fluid section of the well servicing pump is configured to receive fracturing fluid from the blender system; and
wherein the outlet of the fluid section is fluidly coupled to a well.