System for heating a hydrocarbon resource in a subterranean formation including a transformer and related methods

摘要

A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein may include a radio frequency (RF) source, an RF antenna to be positioned within the wellbore, and a transformer to be positioned in the wellbore and configured to couple the RF source to the RF antenna so that the RF antenna supplies RF power to the hydrocarbon resource in the subterranean formation.

主权项

1. A system for heating a hydrocarbon resource in a subterranean formation having a wellbore extending therein, the system comprising:
a radio frequency (RF) source; an RF antenna to be positioned within the wellbore; and a variable transformer to be positioned in the wellbore and configured to couple said RF source to said RF antenna so that said RF antenna supplies RF power to the hydrocarbon resource in the subterranean formation; said transformer comprising a core, a shield assembly surrounding said core, and an electromagnet surrounding said shield assembly.