US 11,732,563 B2
Hydraulic fracturing pumps to enhance flow of fracturing fluid into wellheads and related methods
Tony Yeung, Houston, TX (US)
Assigned to BJ Energy Solutions, LLC, The Woodlands, TX (US)
Filed by BJ Energy Solutions, LLC, Houston, TX (US)
Filed on Nov. 17, 2022, as Appl. No. 17/989,607.
Application 17/989,607 is a continuation of application No. 17/664,578, filed on May 23, 2022.
Claims priority of provisional application 63/202,031, filed on May 24, 2021.
Prior Publication US 2023/0082868 A1, Mar. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 43/26 (2006.01); F04B 53/00 (2006.01); F04B 19/04 (2006.01); F04B 1/04 (2020.01); F04B 1/0404 (2020.01); F04B 1/0413 (2020.01)
CPC E21B 43/2607 (2020.05) [F04B 1/04 (2013.01); F04B 1/0404 (2013.01); F04B 1/0413 (2013.01); F04B 19/04 (2013.01); F04B 53/006 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A hydraulic fracturing pump to enhance flow of fracturing fluid into a wellhead during a high-pressure fracturing operation, the hydraulic fracturing pump comprising:
a pump frame at least partially defining a shaft aperture;
a crankshaft extending through the shaft aperture, the crankshaft comprising a plurality of crankpins, each of the crankpins being offset from a longitudinal rotation axis of the crankshaft;
a plurality of first plungers and a plurality of second plungers connected to the crankshaft via the plurality of crankpins to define a plurality of plunger pairs arranged adjacent one another along the longitudinal rotation axis such that rotation of the crankshaft about the longitudinal rotation axis is to engage the plurality of plunger pairs in a non-consecutive sequence along the longitudinal rotation axis, thereby to at least partially cancel forces generated by the plurality of plunger pairs during operation, each of the plurality of plunger pairs including a corresponding one of the plurality of first plungers and a corresponding one of the plurality of second plungers, and each crankpin connected to a corresponding one of the plurality of plunger pairs; and
a first fluid end connected to the pump frame such that, during operation, each of the plurality of first plungers reciprocates in first and second directions within the first fluid end when the crankshaft rotates about the longitudinal rotation axis, the first direction opposite the second direction, so that movement of each of the plurality of first plungers in the first direction causes the fracturing fluid to be both drawn into the first fluid end and discharged from the first fluid end, and movement of each of the plurality of first plungers in the second direction causes the fracturing fluid to be both drawn into the first fluid end and discharged from the first fluid end.