Invention Grant
- Patent Title: Drilling systems and fixed cutter bits with adjustable depth-of-cut to control torque-on-bit
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Application No.: US14062006Application Date: 2013-10-24
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Publication No.: US09695641B2Publication Date: 2017-07-04
- Inventor: Aaron E. Schen , Curtis Clifford Lanning , Christopher C. Propes , Jacob D. Riddel
- Applicant: National Oilwell DHT, L.P.
- Applicant Address: US TX Conroe
- Assignee: NATIONAL OILWELL DHT, L.P.
- Current Assignee: NATIONAL OILWELL DHT, L.P.
- Current Assignee Address: US TX Conroe
- Agency: Conley Rose, P.C.
- Main IPC: E21B10/55
- IPC: E21B10/55 ; E21B10/43 ; E21B10/62

Abstract:
A drill bit for drilling a borehole in an earthen formation includes a connection member having a pin end. In addition, the drill bit includes a bit body coupled to the connection member and configured to rotate relative to the connection member about a central axis of the bit. The bit body includes a bit face. Further, the drill bit includes a blade extending radially along the bit face. Still further, the drill bit includes a plurality of cutter elements mounted to a cutter-supporting surface of the blade. Moreover, the drill bit includes a depth-of-cut limiting structure slidably disposed in a bore extending axially from the cutter-supporting surface. The depth-of-cut limiting structure is configured to move axially relative to the bit body in response to rotation of the bit body relative to the connection member.
Public/Granted literature
- US20140174827A1 Drilling Systems and Fixed Cutter Bits with Adjustable Depth-of-Cut to Control Torque-on-Bit Public/Granted day:2014-06-26
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