Patent ID: 8186445

Claim:
A system for supplying power to an electrical cable leading to a heater tool disposed in a borehole, comprising: a wellhead member having a bore with a longitudinal axis and a rim on an upper end, the wellhead member adapted to be installed at an upper end of the borehole with the longitudinal axis centered with the upper end of the borehole; a hanger that lands concentrically in the bore; a lower electrical connector mounted in the hanger on the longitudinal axis and having upward-facing contacts, the lower electrical connector adapted to be connected to an upper end of the electrical cable, the upward-facing contacts of the lower electrical connector having upper ends located in the bore of the wellhead member at an elevation below the rim; a bonnet mounted and sealed to the rim of the wellhead member; an upper electrical connector mounted concentrically to the bonnet and having downward-facing contacts that mate with the upward-facing contacts, the upper electrical connector adapted to be connected to a power source; and wherein the upper and lower electrical connectors are positioned such that securing the bonnet to the rim of the wellhead member simultaneously causes the downward-facing contacts to engage the upward-facing contacts.