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US 10,047,563 B2Granted
Methods of forming earth-boring tools utilizing expandable reamer blades
AssigneeBaker Hughes Incorporated
InventorsMarcus Oesterberg, James D. Enterline
Life of this patent
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Abstract
An earth-boring tool includes a tool body of a fixed-blade reaming apparatus configured to be coupled within the drilling assembly. The tool body has a longitudinal axis and at least one reamer blade configured to be outwardly extendable for use in an expandable reamer and attachable on a fixed-blade reamer. The at least one reamer blade is attached to the tool body in an immovable manner relative to the tool body during use of the earth-boring tool in the formation of a subterranean wellbore.
Claims20
A method of forming an earth-boring tool, comprising:
- removing at least one reamer blade from an expandable reaming apparatus;
- and
- attaching the at least one reamer blade to a tool body to render the at least one reamer blade immovable in relation to the tool body.
A method of forming an earth-boring tool, comprising:
- positioning at least one reamer blade on a tool body such that a mounting surface of the at least one reamer blade is radially inward of an exterior surface of the tool body and a cutting surface of the at least one reamer blade is radially outward of the exterior surface of the tool body, wherein the mounting surface is radially inclined at an acute angle relative to a longitudinal axis of the tool body;
- and
- attaching the at least one reamer blade to the tool body such that the at least one reamer blade is immovable relative to the tool body, the at least one reamer blade configured for use in an expandable reaming apparatus and having at least one feature configured to engage a complementary feature of the expandable reaming apparatus while allowing movement of the at least one reamer blade between a retracted position and an extended position with respect to the expandable reaming apparatus.
Dependencies are inferred from the claim text.