Earth-boring tools and components thereof including methods of attaching a nozzle to a body of an earth-boring tool and tools and components formed by such methods
AssigneeBaker Hughes, A Ge Company, LLC
InventorOliver Matthews, III
Life of this patent
Estimating the term…
Abstract
Earth-boring drill bits include a bit body, an element having an attachment feature bonded to the bit body, and a shank assembly. Methods for assembling an earth-boring rotary drill bit include bonding a threaded element to the bit body of a drill bit and engaging the shank assembly to the threaded element. A nozzle assembly for an earth-boring rotary drill bit may include a cylindrical sleeve having a threaded surface and a threaded nozzle disposed at least partially in the cylindrical sleeve and engaged therewith. Methods of forming an earth-boring drill bit include providing a nozzle assembly including a tubular sleeve and nozzle at least partially within a nozzle port of a bit body.
Claims17
A nozzle assembly for a drill bit for subterranean drilling, the nozzle assembly comprising:
- a cylindrical sleeve having a threaded inner surface, an outer surface, a first longitudinal end, and
- a second, opposite longitudinal end, the cylindrical sleeve comprising:
- a plurality of slots extending from the first longitudinal end toward the second longitudinal end and defining a plurality of flexible fingers therebetween, and
- a plurality of protrusions, each protrusion disposed on an outer surface of a flexible finger of the plurality of flexible fingers;
- and
- a nozzle having a threaded outer surface configured to engage the threaded inner surface of the cylindrical sleeve.
An earth-boring drill bit, comprising:
- a bit body having at least one nozzle port and at least one recess within the at least one nozzle port;
- a substantially cylindrical sleeve disposed within the at least one nozzle port, the sleeve having an inner surface, an outer surface, a first longitudinal end, and a second, opposite longitudinal end, the cylindrical sleeve comprising a plurality of slots extending from the first longitudinal end toward the second longitudinal end and defining a plurality of flexible fingers therebetween, wherein at least one feature on an outer surface of at least one finger of the plurality of flexible fingers is disposed at least partially within the at least one recess, mechanical interference between the at least one feature on the outer surface of the at least one finger and a surface of the bit body defining the at least one recess securing the sleeve within the at least one nozzle port of the bit body;
- and
- a nozzle disposed at least partially within the cylindrical sleeve, the nozzle having an outer surface engaged with the inner surface of the cylindrical sleeve.
An earth-boring drill bit, comprising:
- a bit body comprising:
- at least one nozzle port;
- and
- at least one body feature within the at least one nozzle port;
- a sleeve disposed within the at least one nozzle port, the sleeve having an inner surface, an outer surface, a first longitudinal end, and a second, opposite longitudinal end, the sleeve comprising a plurality of slots extending from the first longitudinal end toward the second longitudinal end and defining a plurality of flexible fingers therebetween, wherein at least one sleeve feature on an outer surface of at least one finger of the plurality of flexible fingers is complementary to the at least one body feature within the at least one nozzle port, wherein mechanical interference between the at least one sleeve feature on the outer surface of the at least one finger and the at least one body feature securing the sleeve within the at least one nozzle port of the bit body;
- and
- a nozzle disposed at least partially within the sleeve, the nozzle having an outer surface engaged with the inner surface of the sleeve.
An earth-boring drill bit, comprising:
- a bit body comprising:
- at least one nozzle port;
- and
- at least one body feature within the at least one nozzle port;
- a sleeve disposed within the at least one nozzle port, the sleeve having an inner surface, an outer surface, a first longitudinal end, and a second, opposite longitudinal end, the sleeve comprising a plurality of slots extending to the second longitudinal end and defining a plurality of flexible fingers at the second longitudinal end, wherein the sleeve is disposed within the at least one nozzle port of the bit body with the first longitudinal end at an outer surface of the bit body and the second longitudinal end within the at least one nozzle port of the bit body;
- and
- a nozzle disposed at least partially within the sleeve, the nozzle having an outer surface engaged with the inner surface of the sleeve.
Dependencies are inferred from the claim text.