Abstract: A system, method and apparatus for incorporating a fiber optic cable into a power cable for an electrical submersible pump is disclosed. The fiber optic components are protected from damage during handling of the cable with pump cable components, such as lead sheaths and jacketing materials. The optical fibers are protected from damage due to corrosive oil well chemicals and gasses, as well as protected from decompression damage.

Abstract: An improved cable and cable sheathing arrangement that affords protection for the conductive elements against corrosion, chemical and physical hazards. In exemplary embodiments described herein, the cable includes a plurality of copper conductors that are individually encased in a thermoplastic insulation. An extruded lead sheath surrounds the thermoplastic insulation. Finally, a thermoplastic jacket encloses the lead sheaths of the conductors in surrounding contact to provide a unitary cable. A cost effective cable is provided, and the need for an external metal armor is reduced or eliminated. Additionally, the cable provides substantial and adequate resistance to corrosion and physical hazards.

Abstract: An improved cable and cable sheathing arrangement that affords protection for the conductive elements against corrosion, chemical and physical hazards. In exemplary embodiments described herein, the cable includes a plurality of copper conductors that are individually encased in a thermoplastic insulation. An extruded lead sheath surrounds the thermoplastic insulation. Finally, a thermoplastic jacket encloses the lead sheaths of the conductors in surrounding contact to provide a unitary cable. A cost effective cable is provided, and the need for an external metal armor is reduced or eliminated. Additionally, the cable provides substantial and adequate resistance to corrosion and physical hazards.

Abstract: A power cable for an ESP is used also for heating well bores in cold climates. An electrical switch is located within a wellbore at a selected location in the power cable. The electrical switch is provided to selectively short out the conductors within the power cable, thereby allowing the power cable above the switch to be used as a resistive heating element to thaw the wellbore. While the switch is open, power supplied to power cable drives ESP in a normal manner.