Electrical submersible pump and gas compressor
First Claim
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1. A method of producing a two phase gas liquid mixture of wellbore fluid, the method comprising:
- connecting a motor into an assembly along with a rotary gas separator, a gas compressor and a pump, and placing the assembly within a conduit, the assembly having a longitudinal axis with the pump being located axially between the gas separator and the compressor;
operating the motor to drive the gas separator, the gas compressor and the pump, and communicating a two phase gas liquid mixture of wellbore fluid in the conduit to the gas separator, and with the as separator, separating the gas and liquid mixture into a substantially mono-phase gas component and a substantially mono-phase liquid component;
flowing the liquid component from the gas separator to the pump and pumping the liquid component into a liquid flow passage;
without releasing the gas component into the conduit, flowing the gas component from the gas separator past the pump to the compressor, compressing the as component and delivering the gas component into a gas flow passage, which is separate from the liquid flow passage; and
wherein flowing the liquid, component from the pump into the liquid flow passage comprises flowing the liquid component through a liquid component bypass line alongside and past the compressor to avoid communicating the liquid component to the conduit.
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Abstract
A wellbore fluid production system that is disposable in a wellbore comprising a separator, a pump, a compressor, and a motor. The separator segregates the gas and liquid and delivers the gas to the compressor inlet and the liquid to the pump inlet. The pump pressurizes the liquid for delivery to the surface. The compressor pressurizes the gas for reinjection into the wellbore, injection into another subterranean formation, or for delivery to the surface.
25 Citations
13 Claims
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1. A method of producing a two phase gas liquid mixture of wellbore fluid, the method comprising:
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connecting a motor into an assembly along with a rotary gas separator, a gas compressor and a pump, and placing the assembly within a conduit, the assembly having a longitudinal axis with the pump being located axially between the gas separator and the compressor; operating the motor to drive the gas separator, the gas compressor and the pump, and communicating a two phase gas liquid mixture of wellbore fluid in the conduit to the gas separator, and with the as separator, separating the gas and liquid mixture into a substantially mono-phase gas component and a substantially mono-phase liquid component; flowing the liquid component from the gas separator to the pump and pumping the liquid component into a liquid flow passage; without releasing the gas component into the conduit, flowing the gas component from the gas separator past the pump to the compressor, compressing the as component and delivering the gas component into a gas flow passage, which is separate from the liquid flow passage; and wherein flowing the liquid, component from the pump into the liquid flow passage comprises flowing the liquid component through a liquid component bypass line alongside and past the compressor to avoid communicating the liquid component to the conduit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A fluid production system for delivering wellbore fluids comprising:
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a subsea flowline jumper having an in adapted to receive wellbore fluid from a subsea well and an outlet for connection to a subsea manifold for delivery of the wellbore fluid to a surface platform; a gas liquid separator located within the jumper and haying an inlet configured to receive the wellbore fluid flowing into the inlet of the jumper, a gas exit configured to discharge gas from within the fluid from the separator, and a liquid exit configured to discharge liquid within the fluid from the separator, a pump located within the jumper and having an inlet formed to receive liquid from the liquid exit, the pump having an inlet end mounted to the separator; a compressor located within the jumper and having an inlet formed to receive gas from the gas exit; a gas outlet conduit connected to an outlet of the compressor for delivering gas compressed by the compressor to the subsea manifold; a motor mechanically coupled within the jumper in an assembly with the separator, pump, and compressor for rotating the separator, the pump and the compressor, the assembly having a longitudinal axis, with the pump being located axially between the separator and the compressor; gas bypass line leading from the gas exit of the separator past the pump to the inlet of the compressor, and wherein the pump has an outlet that discharges liquid within the jumper, which flows around the compressor to the outlet of the jumper. - View Dependent Claims (8, 9, 10)
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11. A system for delivering wellbore fluids, comprising:
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an electrical motor; a rotary gas liquid separator mounted to the motor, the separator having a wellbore fluid inlet, a gas component exit, and a liquid component exit; a centrifugal pump driven by the motor, mounted to an exit end of the separator and having a liquid component inlet in fluid communication with the separator liquid component exit; a rotary compressor assembly driven by the motor, having an inlet end mounted to an outlet end of the pump, having a gas component inlet and a gas component outlet for connection to a gas flow line; a liquid component bypass line extending from an outlet of the pump past the compressor assembly for connection to a liquid flow line; and a gas component bypass line extending from the separator gas component exit past the pump to the gas component inlet of the compressor assembly. - View Dependent Claims (12, 13)
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Specification