Insulating blocks and methods for installation in insulated conductor heaters

摘要

An insulated conductor heater may include an electrical conductor that produces heat when an electrical current is provided to the electrical conductor. An electrical insulator at least partially surrounds the electrical conductor. The electrical insulator comprises a resistivity that remains substantially constant, or increases, over time when the electrical conductor produces heat. An outer electrical conductor at least partially surrounds the electrical insulator.

主权项

1. An insulated conductor heater, comprising:
an elongated electrical conductor configured to produce heat when an electrical current is provided to the electrical conductor; an elongated electrical insulator at least partially surrounding the electrical conductor, wherein the electrical insulator comprises a plurality of blocks of electrical insulation horizontally displaced along a substantial length of the electrical conductor; and an outer electrical conductor at least partially surrounding the electrical insulator.