Directional drilling systems, apparatus, and methods
AssigneeHalliburton Energy Services, Inc.
InventorHossam Gharib
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Abstract
A directional drilling system comprises a driveshaft to couple to a drill string or a drill bit and an apparatus. The apparatus comprises an eccentric coupler disposed at the driveshaft and a coil coupled at one end to the eccentric coupler. In some embodiments, the coil comprises a fixed end and a rotating end. In response to a first transition temperature, the rotating end of the coil causes the eccentric coupler to rotate about the driveshaft, so as to move the driveshaft from a first orientation to a second orientation. Additional apparatus, methods, and systems are disclosed.
Claims20
An apparatus, comprising:
- an eccentric coupler to be disposed around a driveshaft;
- and
- a coil having a fixed end and a rotating end, wherein, responsive to a first transition temperature, the rotating end causes the eccentric coupler to rotate about the driveshaft, so as to move the driveshaft from a first orientation to a second orientation.
A system, comprising:
- a driveshaft to couple to a drill string or a drill bit;
- and
- an apparatus, comprising:
- an eccentric coupler disposed at the driveshaft;
- and
- a coil coupled at one end to the eccentric coupler.
A method, comprising:
- applying an electrical current to a coil having a fixed end and a rotating end,
- in response to heating of the coil caused by the electrical current, rotating an eccentric coupler attached to the coil about a driveshaft, so as to move the driveshaft from a first orientation to a second orientation.
Dependencies are inferred from the claim text.