Method and system for pressure regulation of well fluid from a hydrocarbon well
AssigneeVetco Gray Scandinavia AS
InventorsGiacomo Landi, Ashish Jain, Marius Rosvold
Life of this patent
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Abstract
A method and a system for pressure regulation of well fluid produced from a hydrocarbon well in a hydrocarbon production field. The system comprises a pump arranged on a well head in fluid communication with a process fluid passage from the well, the pump arranged for receiving well fluid produced from the well and to deliver the fluid to downstream piping or equipment. The pump comprises a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode, and wherein the pump is driven in power consumption mode by operation of the motor/generator unit as a motor.
Claims19
A system arranged for pressure regulation of well fluid recovered from a hydrocarbon well in a hydrocarbon production field, the system comprising:
- a pump arranged on a well head in fluid communication with a process fluid passage from the well and configured to receive well fluid produced from the well and deliver the fluid to downstream piping or equipment, the pump comprising a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode,
- wherein the pump is driven in power consumption mode by operation of the motor/generator unit as a motor, and is electrically connected to a power distribution unit configured to distribute recovered power to other power consumers in the system.
A system arranged for pressure regulation of well fluid recovered from a hydrocarbon well in a hydrocarbon production field, the system comprising:
- a pump arranged on a well head in fluid communication with a process fluid passage from the well and configured to receive well fluid produced from the well and deliver the fluid to downstream piping or equipment, the pump comprising a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode,
- wherein the pump is a helicon axial pump adapted for pressure boosting of multiphase fluid and is driven in power consumption mode by operation of the motor/generator unit as a motor.
A system arranged for pressure regulation of well fluid recovered from a hydrocarbon well in a hydrocarbon production field, the system comprising:
- a pump arranged on a well head in fluid communication with a process fluid passage from the well and configured to receive well fluid produced from the well and deliver the fluid to downstream piping or equipment, the pump comprising a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode,
- wherein the motor of the motor/generator unit is integrated in a power module and flow module, and the pump is driven in power consumption mode by operation of the motor/generator unit as a motor.
A system arranged for pressure regulation of well fluid recovered from a hydrocarbon well in a hydrocarbon production field, the system comprising:
- a pump arranged on a well head in fluid communication with a process fluid passage from the well and configured to receive well fluid produced from the well and deliver the fluid to downstream piping or equipment, the pump comprising a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode;
- and
- a subsea power distribution unit containing control logic to determine if the pump is to be operated in power consumption mode or in power generation mode,
- wherein the pump is driven in power consumption mode by operation of the motor/generator unit as a motor.
A system arranged for pressure regulation of well fluid recovered from a hydrocarbon well in a hydrocarbon production field, the system comprising:
- a pump arranged on a well head in fluid communication with a process fluid passage from the well and configured to receive well fluid produced from the well and deliver the fluid to downstream piping or equipment, the pump comprising a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode,
- wherein the pump is arranged on a well head, is operable for equalization of pressures in well fluid recovered from hydrocarbon wells producing at different well fluid pressures, and is driven in power consumption mode by operation of the motor/generator unit as a motor.
A system arranged for pressure regulation of well fluid recovered from a hydrocarbon well in a hydrocarbon production field, the system comprising:
- a pump in fluid communication with a process fluid passage from the well and configured to receive well fluid produced from the well and deliver the fluid to downstream piping or equipment, the pump comprising a motor/generator unit operable as a generator as the pump is driven by well fluid in power generation mode,
- wherein the pump is arranged on a pressure regulation module that is connectible to a well head or Christmas tree or surface tree and separately retrievable therefrom, and is driven in power consumption mode by operation of the motor/generator unit as a motor.
A method for regulation of well fluid pressure in well fluid produced from a hydrocarbon well in a hydrocarbon production field, the method comprising:
- arranging a pump on a well head in fluid communication with a well fluid passage from the well, wherein the pump comprises a motor/generator unit;
- and
- increasing pressure in well fluid by operating the pump as motor in power consumption mode, and reducing pressure in well fluid by operating the pump as generator in power generation mode;
- wherein pump data and fluid data are used in calculation of the actual flow through the pump.
Dependencies are inferred from the claim text.