Cold weather package for oil field hydraulics
AssigneeU.S. Well Services, LLC
InventorJared Oehring
Life of this patent
Estimating the term…
Abstract
A hydraulic fracturing system includes an electrically powered pump that pressurizes fluid, which is piped into a wellbore to fracture a subterranean formation. System components include a fluid source, an additive source, a hydration unit, a blending unit, a proppant source, and a fracturing pump. The system includes heaters for warming hydraulic fluid and/or lube oil. The hydraulic fluid is used for operating devices on the blending and hydration units. The lube oil lubricates and cools various moving parts on the fracturing pump.
Claims13
A hydraulic fracturing system for fracturing a subterranean formation comprising:
- a plurality of electric pumps fluidly connected to the well and powered by at least one electric motor, and configured to pump fluid into the wellbore at high pressure so that the fluid passes from the wellbore into the formation, and fractures the formation;
- a variable frequency drive connected to the electric motor to control the speed of the motor, wherein the variable frequency drive frequently performs electric motor diagnostics to prevent damage to the at least one electric motor;
- and
- a working fluid system comprising working fluid, and a heater that is in thermal contact with the working fluid;
- wherein the heater comprises a tank having working fluid and a heating element in thermal contact with the working fluid.
A hydraulic fracturing system for fracturing a subterranean formation comprising:
- a pump having a discharge in communication with a wellbore that intersects the formation;
- an electric motor coupled to and that drives the pump;
- a variable frequency drive connected to the electric motor that controls a speed of the motor and performs electric motor diagnostics;
- and
- a working fluid system comprising a piping circuit having working fluid, and a heater that is in thermal contact with the working fluid;
- wherein the working fluid comprises one of lube oil and hydraulic fluid.
Dependencies are inferred from the claim text.