Power cable for cable deployed electric submersible pumping system
AssigneeSchlumberger Technology Corporation
InventorsJason HOLZMUELLER, William GOERTZEN, Gregory Howard MANKE
Life of this patent
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Abstract
A technique facilitates construction and operation of a power cable which may be used to deploy an electric submersible pumping system downhole into a wellbore. The power cable is constructed to provide structural support of the electric submersible pumping system while also providing electric power to the electric submersible pumping system when located downhole in the wellbore. The power cable comprises at least one conductor and a plurality of layers selected and arranged to ensure long-term support and delivery of electrical power in the relatively harsh downhole environment.
Claims20
A system for conducting electricity in a wellbore, comprising:
- an electric submersible pumping system;
- a power cable coupled to the electric submersible pumping system and supporting the weight of the electric submersible pumping system during deployment into the wellbore, the power cable comprising:
- a conductor;
- an insulation layer in contact with the conductor;
- a fluid barrier layer in contact with the insulation layer;
- a jacket layer covering the fluid barrier layer;
- a wire armor layer disposed along an outer surface of the jacket layer;
- a second jacket layer covering the wire armor layer;
- and
- an armor layer in contact with the second jacket layer.
A system for supplying electricity, comprising:
- an electric cable having:
- a plurality of conductors for conducting electricity, each conductor being surrounded by an insulation layer and a fluid barrier layer;
- a jacket covering the plurality of conductors;
- a wire armor layer disposed along an outer surface of the jacket layer, the wire armor layer being arranged to establish a support member capable of supporting the weight of an electric submersible pumping system;
- a second jacket layer covering the wire armor layer;
- and
- an armor layer in contact with the second jacket layer.
A method for ensuring a dependable supply of electricity in a wellbore, comprising:
- placing an insulation layer in contact with each conductor of a plurality of conductors for conducting electricity;
- covering each of the insulation layers with a fluid barrier layer;
- providing a jacket of elastomeric material to collectively surround the fluid barrier layers;
- disposing a wire armor support layer along an outer surface of the jacket;
- positioning a second jacket over the wire armor support layer;
- and
- locating an armor layer around the second jacket and in contact with the second jacket to form an electrical cable.
Dependencies are inferred from the claim text.