Electric submersible pump and motor assembly
AssigneeArtificial Lift Company Limited
InventorPhilip Head
Life of this patent
Estimating the term…
Abstract
An assembly for downhole applications comprises has an electric motor, a pump driven by the electric motor and having a lower pump inlet and an upper pump outlet, and a deployment tube from which the assembly is suspended from and by means of which the assembly can be lowered through the well. A nonrotating hollow shaft forms a bore extending from the tube through the motor and the pump to an assembly opening at the bottom of the assembly such that a device suspended on a wireline or coiled tube may be lowered through the deployment tube and pass through the electric motor and pump to a part of the well below the pump inlet. The motor is linked outside the bore to the pump for driving the pump.
Claims8
An assembly for downhole applications, the assembly comprising
- an electric motor,
- a pump driven by the electric motor and having a lower pump inlet and an upper pump outlet,
- a nonrotating deployment tube from which the assembly is suspended from and by means of which the assembly can be lowered through the well,
- a nonrotating hollow shaft on the tube forming a bore extending from the tube through the motor and through the pump to an assembly opening at the bottom of the assembly such that a device suspended on a wireline or coiled tube lowered through the deployment tube and pass along the bore through the electric motor and pump to a part of the well below the pump inlet, and
- means outside the bore linking the motor to the pump for driving the pump from the motor.
Dependencies are inferred from the claim text.