US 11,808,127 B2
Hybrid drive systems for well stimulation operations
Billy Don Coskrey, Duncan, OK (US); Timothy Holiman Hunter, Duncan, OK (US); and Stanley Vernon Stephenson, Duncan, OK (US)
Assigned to Halliburton Energy Services, Inc., Houston, TX (US)
Filed by Halliburton Energy Services, Inc., Houston, TX (US)
Filed on May 6, 2022, as Appl. No. 17/738,946.
Application 17/738,946 is a continuation of application No. 16/321,155, granted, now 11,421,673, previously published as PCT/US2016/050196, filed on Sep. 2, 2016.
Prior Publication US 2022/0260071 A1, Aug. 18, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. E21B 43/26 (2006.01); F04B 47/02 (2006.01); F04B 47/00 (2006.01); F04B 15/02 (2006.01); F04B 17/03 (2006.01); F04B 17/05 (2006.01); F04B 17/06 (2006.01); F04D 13/02 (2006.01); F04D 13/06 (2006.01); E21B 43/267 (2006.01)
CPC E21B 43/2607 (2020.05) [F04B 15/02 (2013.01); F04B 17/03 (2013.01); F04B 17/05 (2013.01); F04B 17/06 (2013.01); F04B 47/00 (2013.01); F04B 47/02 (2013.01); E21B 43/267 (2013.01); F04D 13/02 (2013.01); F04D 13/06 (2013.01)] 32 Claims
OG exemplary drawing
 
1. A method of performing an operation in a subterranean formation comprising:
outputting a first mechanical energy from at least one of a diesel engine, a spark-ignited natural gas engine, and a dual fuel engine;
using at least one of an electric motor and a hydraulic motor to provide a second mechanical energy;
combining the first and second mechanical energies;
using a drivetrain to output the combined first and second mechanical energies to directly power a pump; and
pumping a fluid into the subterranean formation using the pump.