Invention Grant
- Patent Title: Drill bits and tools for subterranean drilling including rubbing zones and related methods
-
Application No.: US15095538Application Date: 2016-04-11
-
Publication No.: US09890597B2Publication Date: 2018-02-13
- Inventor: Thorsten Schwefe , Cara D. Weinheimer
- Applicant: Baker Hughes Incorporated
- Applicant Address: US TX Houston
- Assignee: Baker Hughes Incorporated
- Current Assignee: Baker Hughes Incorporated
- Current Assignee Address: US TX Houston
- Agency: TraskBritt
- Main IPC: E21B10/43
- IPC: E21B10/43 ; E21B10/42 ; E21B10/62 ; E21B7/04 ; E21B10/54

Abstract:
A drill bit may include a bit body including at least one blade extending at least partially over a cone region of the bit body. Additionally, the drill bit may include a plurality of cutting structures mounted to the at least one blade and a rubbing zone within the cone region of the at least one blade, wherein cutting structures within the rubbing zone have a reduced average exposure. Additionally, a method of directional drilling may include positioning a depth-of-cut controlling feature of a drill bit away from a formation to prevent substantial contact between the depth-of-cut controlling feature and rotating the drill bit off-center to form a substantially straight borehole segment. The method may also include positioning the depth-of-cut controlling feature of the drill bit into contact with the formation to control the depth-of-cut and rotating the drill bit on-center to form a substantially nonlinear borehole segment.
Public/Granted literature
- US20170022763A1 DRILL BITS AND TOOLS FOR SUBTERRANEAN DRILLING INCLUDING RUBBING ZONES AND RELATED METHODS Public/Granted day:2017-01-26
Information query