Modular Reamer
AssigneeT. J. Technology Ltd.
InventorsLaurier E. Comeau, Jayson Russell
Life of this patent
Estimating the term…
Abstract
A modular reamer for use in a wellbore comprises an uphole end member, a center member, and a downhole member, with reamer sleeves that removably slides over a sleeve mounting portion of the center member or one of the end members, and are held between the end members and the center members when assembled into a downhole tool. The reamer sleeves may be positioned at any desired rotational angle relative to each other and are prevented from rotational movement relative to the center member by spines or keys formed on the mating surfaces of the reamer sleeves and corresponding members of the modular eccentric reamer.
Claims20
A downhole tool, comprising:
- a first end member;
- a center member, threadedly connected to the first end member;
- a second end member, threadedly connected to the center member;
- a first removable sleeve, held in place between a shoulder of the first end member and a first shoulder of the center member;
- and
- a second removable sleeve, held in place between a second shoulder of the center member and a shoulder of the second end member,
- wherein the first removable sleeve and the second removable sleeve are separately positionable at a plurality of rotational angles relative to the center member.
A removable reamer sleeve for a downhole tool, comprising:
- a sleeve body;
- a plurality of cutter blades formed on an outer surface of the sleeve body;
- and
- a plurality of splines formed longitudinally about an inner surface of the sleeve body, configured for slidable engagement with a corresponding plurality of spines formed on a member of the downhole tool.
A method of reaming a wellbore, comprising:
- rotating a first reamer sleeve to a first rotational angle relative to a center member of a modular reamer tool;
- sliding the first reamer sleeve onto a first end of the center member of the modular reamer tool;
- connecting the center member of the modular reamer tool with a first end member of the modular reamer tool, wherein the first reamer sleeve is disposed between a shoulder of the first end member and a first shoulder of the center member;
- coupling the modular reamer tool to a drill string;
- and
- rotating the drill string in the wellbore.
Dependencies are inferred from the claim text.