Multi-stage gas separator
AssigneeWood Group ESP, Inc.
InventorChengbao Wang
Life of this patent
Estimating the term…
Abstract
A gas separator is configured to separate gas from a two-phase fluid. The gas separator includes a rotatable shaft, a plurality of separation stages and an outer housing. Each of the plurality of separation stages includes a rotor connected to the rotatable shaft, a diffuser downstream from the rotor and a crossover downstream from the diffuser. Each crossover is configured to remove gas from its respective separation stage. The outer housing includes a separate group of discharge ports for each separation stage to permit the removal of gas from each separation stage.
Claims13
A gas separator configured to separate gas from a two-phase fluid, the gas separator comprising:
- a rotatable shaft;
- a plurality of separation stages, wherein each separation stage comprises:
- a rotor connected to the rotatable shaft;
- a diffuser downstream from the rotor;
- and
- a crossover downstream from the diffuser, wherein each crossover is configured to remove gas from its respective separation stage;
- an outer housing, wherein the outer housing includes a separate group of discharge ports for each separation stage to permit the removal of gas from each separation stage
- a base;
- a head;
- intake ports adjacent the base;
- and
- a flow-through bearing downstream from the intake ports and upstream from the plurality of separation stages.
A gas separator configured to remove gas from a two-phase fluid, the gas separator comprising:
- an outer housing;
- a flow-through bearing;
- and
- a diffuser, wherein the diffuser comprises:
- a diffuser rim;
- a plurality of diffuser vanes, wherein each of the plurality of diffuser vanes has a first end connected to the diffuser rim and a free-floating second end.
A submersible pumping system for use in a wellbore having two-phase fluids, the pumping system comprising:
- a pump assembly;
- a motor assembly;
- a gas separator disposed between the pump assembly and the motor assembly;
- a seal section disposed between the motor assembly and the gas separator;
- and
- wherein the gas separator comprises:
- a base connected to the seal section;
- a head connected to the pump assembly;
- intake ports adjacent the base;
- a rotatable shaft driven by the motor assembly;
- a plurality of separation stages, wherein each separation stage comprises:
- a rotor connected to the rotatable shaft, wherein the rotor includes an inducer and an impeller;
- a diffuser downstream from the rotor;
- and
- a crossover downstream from the diffuser, wherein each crossover is configured to remove gas from its respective separation stage;
- and
- an outer housing, wherein the outer housing includes a separate group of discharge ports for each separation stage to permit the removal of gas from each separation stage.
Dependencies are inferred from the claim text.