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US 10,221,856 B2Granted
Pump system and method of starting pump
AssigneeBJ Services Company
InventorsJennifer Hernandez, Bruce A. Vicknair, Blake C. Burnette, Pierce Dehring
Life of this patent
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Abstract
A pump system positionable at a surface of a well site for downhole operations includes a pump assembly having a pump and a starting assist. The pump includes a crankshaft and is operable by a first motor. The starting assist includes a second motor and a gear system.
Claims21
A pump system comprising:
- a pump having a crankshaft;
- a pump motor selectively engaged with an end of the crankshaft;
- and
- a starting assist comprising a starting assist motor, a starting assist drive shaft coupled with the starting assist motor, and a gear set having an end coupled to the starting assist drive shaft and an opposing end coupled to and disposed adjacent an end of the crankshaft distal from the end of the crankshaft engaged with the pump motor, so that when the starting assist motor is energized, rotational power from the starting assist motor is transferred through the gear set and to the crankshaft.
1 more element
A method of operating a pump used in downhole operations comprising:
- obtaining a pump system comprising,
- a pump having a crankshaft,
- a pump motor selectively engaged with an end of the crankshaft, and
- a starting assist comprising,
- a starting assist motor,
- a starting assist drive shaft coupled with the starting assist motor,
- and
- a gear set having an end coupled to the starting assist drive shaft and an opposing end coupled to and disposed adjacent an end of the crankshaft distal from the end of the crankshaft engaged with the pump motor;
- and
- rotating an end of the crankshaft opposite from where the crankshaft is engaged with the pump motor by energizing the starting assist motor.
7 more elements
Dependencies are inferred from the claim text.