| US 7,600,586 B2 | ||
| System for steering a drill string | ||
| David R. Hall, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US); and Jim Shumway, 2185 S. Larsen Pkwy., Provo, Utah 84606 (US) | ||
| Filed on Dec. 15, 2006, as Appl. No. 11/611,310. | ||
| Prior Publication US 2008/0142264 A1, Jun. 19, 2008 | ||
| Int. Cl. E21B 7/04 (2006.01) | ||
| U.S. Cl. 175—61 [175/73; 175/106] | 26 Claims |
| 1. A downhole tool string component, comprising:
a first rotor secured within a bore of the component and connected to a gear assembly;
the gear assembly being connected to a second rotor;
the gear assembly comprising a gear ratio adapted to rotate the second rotor faster than the first rotor;
the second rotor being in magnetic communication with a stator which comprises an electrically conductive coil; and
the electrically conductive coil being in communication with a load.
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