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US 12,577,838 B2Granted
Downhole reamer with rotating sleeve
OwnerCorey Cipperley, Erin Venables +1inventors
InventorsCorey Cipperley, Erin Venables, Pete Vanderveen
Life of this patent
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Abstract
A drill string reaming tool for reaming a wellbore while drilling as part of the bottom hole assembly on a drill string comprises a reaming sleeve having teeth or cutters thereon. In some embodiments, the reaming sleeve rotates around the longitudinal axis of the tool unpowered. In some embodiments, the rotation of the reaming sleeve is powered by a turbine driven by mud flowing through the drill string.
Claims20
A downhole tool comprising:
- a lower housing;
- a tension mandrel for connection to the lower housing;
- an interior passageway at the center of the longitudinal axis of the tool, said passageway spanning the lower housing and the tension mandrel and the full length of the tool;
- a rotating sleeve;
- and a mud turbine for rotating the rotating sleeve.
2 more elements
A downhole tool comprising:
- a lower housing;
- a tension mandrel for connection to the lower housing;
- an interior passageway at the center of the longitudinal axis of the tool, said passageway spanning the lower housing and the tension mandrel and the full length of the tool;
- at least a first and a second rotating sleeve;
- and
- a first and a second mud turbine, said first mud turbine for rotating the first sleeve and the second mud turbine for rotating the second sleeve.
3 more elements
A downhole tool comprising:
- a lower housing;
- a tension mandrel for connection to the lower housing;
- an interior passageway at the center of the longitudinal axis of the tool, said passageway spanning the lower housing and the tension mandrel and the full length of the tool;
- at least a first and a second rotating sleeve;
- a spacer between the first and second rotating sleeves;
- and
- at least one mud turbine for rotating at least one of the two rotating sleeves.
4 more elements
Dependencies are inferred from the claim text.