Insulating blocks and methods for installation in insulated conductor heaters

摘要

INSULATING BLOCKS AND METHODS FOR INSTALLATION IN INSULATED CONDUCTOR HEATERS An insulated conductor heather (252) may include an electrical conductor (218) that produces heat when an electrical current is provided to the electrical conductor (218). An electrical insulator (214) at least partially surrounds the electrical conductor. The electrical insulator (214) comprises a resistivity that remains substantially constant, or increases, over time when the electrical conductor produces heat. An outer electrical conductor (216) at least partially surrounds the electrical insulator (214).