Casing end tool
AssigneeVarel International, Inc.
InventorsWilliam W. King, Michael Reese, Steven W. Drews, Ian Alastair Kirk, Scott Buteaud
Life of this patent
Estimating the term…
Abstract
A casing end tool has a mandrel and a body that is defined by a wall having an outer surface and an inner surface opposite of the outer surface. The body is fabricated from crystalline tungsten powder and a binder material. The inner surface includes a set of raised bosses or land structures. The body includes a plurality of blades on the outer surface. Each blade has a plurality of cutters. Blade channels and cutter channels on the blades enhance fragmentation of the body during drill out of the casing end tool.
Claims33
A casing bit, comprising:
- a mandrel;
- and
- a bit body bonded to the mandrel, the bit body having an inner surface and an outer surface opposite the inner surface, the bit body consisting essentially of a matrix material of crystalline tungsten and a binder material.
A casing end tool, comprising:
- a tool body bonded to a mandrel, the tool body including a face portion having an inner surface, the face portion comprising a crystalline tungsten matrix material.
A casing end tool, comprising:
- a body bonded to a mandrel, the body having a plurality of blades, each blade having at least one channel having a channel depth less than a thickness of the blade.
Dependencies are inferred from the claim text.