Patent ID: 11867045
Assignee: BJ ENERGY SOLUTIONS, LLC
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC E  F | IPC E  F

Claim 16:
17. A method of operating a hydraulic fracturing pump associated with a high-pressure fracturing operation, the method comprising:
rotating a crankshaft of a hydraulic fracturing pump,
the hydraulic fracturing pump comprising a drive assembly including the crankshaft and at least one planetary gearbox arranged at an end of the hydraulic fracturing pump, such that rotating the crankshaft drives the crankshaft to cause movement of the at least one planetary gearbox, and
the crankshaft connected to a plurality of plunger pairs including a first plunger pair, a second plunger pair, a third plunger pair, and a fourth plunger pair arranged consecutively relative to a longitudinal axis of the crankshaft, thereby to engage the plurality of plunger pairs in a non-consecutive sequence including reciprocating the first plunger pair, then the third plunger pair, then the second plunger pair, and then the fourth plunger pair;

pumping a first fracturing fluid having a first fracturing fluid composition via a plurality of first plungers of the plurality of plunger pairs; and
pumping a second fracturing fluid having a second fracturing fluid composition via a plurality of second plungers of the plurality of plunger pairs, the first fracturing fluid composition being different than the second fracturing fluid composition.