Borehole drill bit cutter indexing
First Claim
Patent Images
1. A method of drilling a subterranean formation, the method comprising:
- providing a drill bit, the drill bit including a body and at least one cutter coupled with the body;
engaging a subterranean formation with the drill bit including sequentially applying a first force to the at least one cutter, removing the first force from the at least one cutter, and applying a second force to the at least one cutter;
rotating the at least one cutter from the first indexed position to a second indexed position responsive to the removal of the first force and the application of the second force;
coupling the at least one cutter with the body by way of a housing member disposed at least partially between the at least one cutter and the body;
wherein rotating the at least one cutter includes engaging an indexing cog with a portion of the housing.
3 Assignments
0 Petitions
Accused Products
Abstract
For drill bit cutter indexing, a housing is disposed in a drill bit. An indexing cog is in physical communication with a cutter and interlocks with the housing in a first index position of a plurality of index positions in response to a first compressive load applied to the cutter. A motivator disengages the indexing cog from the housing and positions the indexing cog to interlock with the housing at an initial second index position in response to a removal of the compressive load from the cutter.
101 Citations
18 Claims
-
1. A method of drilling a subterranean formation, the method comprising:
-
providing a drill bit, the drill bit including a body and at least one cutter coupled with the body; engaging a subterranean formation with the drill bit including sequentially applying a first force to the at least one cutter, removing the first force from the at least one cutter, and applying a second force to the at least one cutter; rotating the at least one cutter from the first indexed position to a second indexed position responsive to the removal of the first force and the application of the second force; coupling the at least one cutter with the body by way of a housing member disposed at least partially between the at least one cutter and the body; wherein rotating the at least one cutter includes engaging an indexing cog with a portion of the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A method of drilling a subterranean formation, the method comprising:
-
providing a drill bit, the drill bit including a body and at least one cutter coupled with the body; engaging a subterranean formation with the drill bit including sequentially applying a first force to the at least one cutter, removing the first force from the at least one cutter, and applying a second force to the at least one cutter; rotating the at least one cutter from the first indexed position to a second indexed position responsive to the removal of the first force and the application of the second force, wherein rotating the at least one cutter includes engaging an indexing cog with a push cog.
-
-
12. A drill bit comprising:
-
a bit body; at least one cutter coupled with the body; a mechanism associated with the at least one cutter including an indexing cog coupled with the at least one cutter, the mechanism being configured to position the at least one cutter in a first indexed position relative to the bit body while a first force is applied to the at least one cutter, and enable the at least one cutter to rotate to a second indexed position relative to the bit body responsive to the release of the first force and application of a second force to the at least one cutter. - View Dependent Claims (13, 14, 15, 16, 17, 18)
-
Specification