Patent ID: 6617556
Filing Date: 2003-09-09
Classification: E21B,F16L,Y10T

Abstract:
A hydrocarbon production system comprising:a central facility including a three-phase power supply and a single-phase power supply; a wellhead facility spaced from the central facility, said wellhead facility including powered equipment for producing hydrocarbons and a wellhead ground terminal electrically coupled to the ground; an electrically conductive pipeline extending between the central facility and the wellhead facility; and an electrical cable coupled to and extending alongside the pipeline, said central facility including a first electrical switch for electrically coupling and decoupling the three-phase power supply and the electrical cable, said central facility including a second electrical switch for electrically coupling and decoupling the single-phase power supply and the electrical cable, said wellhead facility including a third electrical switch for electrically coupling and decoupling the powered equipment and the electrical cable, said wellhead facility including a fourth electrical switch for electrically coupling and decoupling the wellhead ground terminal and the electrical cable.