Drill bit
AssigneeUlterra Drilling Technologies, L.P.
InventorsCarl Aron Deen, Christopher M. Casad
Life of this patent
Estimating the term…
Abstract
A drill bit including a body having a face and a bit axis. The face includes a cone region disposed about the bit axis, a nose region disposed radially outward from the cone region, and a shoulder region disposed radially outward from the nose region. The drill bit further includes a first plurality of cutters defining a first cutting profile, and a second plurality of cutters defining a second cutting profile different from the first cutting profile. The second plurality of cutters are not back-up cutters to the first plurality of cutters.
Claims29
A drill bit, comprising:
- a body having a face and a bit axis, wherein the face comprises a cone region disposed about the bit axis, a nose region disposed radially outward from the cone region, and a shoulder region disposed radially outward from the nose region;
- a first plurality of cutters defining a first cutting profile;
- and
- a second plurality of cutters defining a second cutting profile different from the first cutting profile, wherein:
- at least a portion of the first cutting profile coincides with or intersects at least a portion of the second cutting profile;
- and
- the first cutting profile and the second cutting profile define different slopes in the cone region.
A drill bit:
- a bit body having a bit face and a bit axis;
- a first plurality of cutters defining a first cutting profile;
- and
- a second plurality of cutters defining a second cutting profile different from the first cutting profile, wherein:
- the first cutting profile and the second cutting profile define different slopes in a cone region of the bit face;
- and
- the second plurality of cutters are not back-up cutters to the first plurality of cutters.
A method of drilling a subterranean formation, comprising:
- engaging a subterranean formation with at least one cutter of a drill bit, wherein the drill bit comprises:
- a bit body having a bit face and a bit axis;
- a first plurality of cutters defining a first cutting profile;
- and
- a second plurality of cutters defining a second cutting profile different from the first cutting profile, wherein:
- at least a portion of the first cutting profile coincides with or intersects at least a portion of the second cutting profile;
- and
- the first cutting profile and the second cutting profile define different slopes in a cone region of the bit face.
A method of configuring a drill bit, comprising:
- configuring a bit body having a bit face and a bit axis;
- configuring a first plurality of cutters defining a first cutting profile;
- and
- configuring a second plurality of cutters defining a second cutting profile different from the first cutting profile such that:
- at least a portion of the first cutting profile coincides with or intersects at least a portion of the second cutting profile;
- and
- the second plurality of cutters are not back-up cutters to the first plurality of cutters.
A method of making a drill bit, comprising:
- providing a bit body having a bit face and a bit axis;
- providing a first plurality of cutters defining a first cutting profile;
- and
- proving a second plurality of cutters defining a second cutting profile different from the first cutting profile, wherein:
- the first cutting profile and the second cutting profile define different slopes in a cone region of the bit face;
- and
- the second plurality of cutters are not back-up cutters to the first plurality of cutters.
Dependencies are inferred from the claim text.