Well fracturing systems with electrical motors and methods of use
OwnerMark Payne, Haomin Lin +1inventors
InventorsMark Payne, Haomin Lin, Tom Robertson
Life of this patent
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Abstract
A system for stimulating oil or gas production from a wellbore includes a hydraulic fracturing pump unit having one or more hydraulic fracturing pumps driven by one or more electrical fracturing motors, a variable frequency drive (VFD) controlling the electrical fracturing motors, a fracturing pump blower unit driven by a blower motor, and a fracturing pump lubrication unit having a lubrication pump driven by a lubrication motor and a cooling fan driven by a cooling motor. The system may further include a blender unit and a hydration unit. A system control unit may control the operational parameters of the system.
Claims20
A system for stimulating oil or gas production from a wellbore, comprising:
- (a) a hydraulic fracturing pump unit having
- two or more fluid pumps, each fluid pump being driven by an alternating current (AC) electrical pump motor coupled to said fluid pump, and a variable frequency drive (VFD) controlling the electrical pump motor;
- (b) an electrically powered hydraulic blender unit configured to provide treatment fluid to at least one of said one or more fluid pumps for delivery to the wellbore, wherein the blender unit comprises at least one AC electrical blending motor;
- and
- (c) a system control unit communicating with each of said hydraulic fracturing pump unit and electrically powered hydraulic blender unit, for controlling operational parameters of each of said units,
- wherein the system control unit is configured to separately control parameters of each of said two or more fluid pumps of the hydraulic fracturing pump unit, and
- wherein at least two fluid pumps of the hydraulic fracturing pump unit have different pumping capacities, and the system control unit is configured to dynamically initialize and maintain operating parameters of the fluid pumps of the hydraulic fracturing pump unit based on information about the flow rate of each fluid pump and the flow rate of the electrically powered hydraulic blender unit.
A system for stimulating oil or gas production from a wellbore, comprising:
- a hydraulic fracturing pump unit having
- a hydraulic fracturing pump driven by an electrical fracturing motor;
- a variable frequency drive (VFD) controlling the electrical fracturing motor;
- a fracturing pump blower unit driven by an electrical blower motor;
- and
- a fracturing pump lubrication unit comprising a lubrication pump driven by an electrical lubrication motor, and
- a cooling fan driven by an electrical cooling motor;
- an electrically powered hydraulic blender unit configured to provide treatment fluid to the hydraulic fracturing pump unit for delivery to the wellbore, the blender unit comprising at least one electrical blending motor;
- and
- a system control unit comprising
- (i) a hydraulic fracturing pump unit controller configured to control the hydraulic fracturing pump unit;
- and
- (ii) a hydraulic blender unit controller configured to control the hydraulic blender unit,
- wherein the hydraulic fracturing pump unit comprises at least two fluid pumps having different pumping capacities, and the system control unit is configured to dynamically initialize and maintain operating parameters of the fluid pumps of the hydraulic fracturing pump unit based on information about the flow rate of each fluid pump and the flow rate of the electrically powered hydraulic blender unit.
Dependencies are inferred from the claim text.