Invention Grant
- Patent Title: Downhole tool with fixed cutters for removing rock
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Application No.: US15999039Application Date: 2018-08-17
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Publication No.: US10731421B2Publication Date: 2020-08-04
- Inventor: Christopher M. Casad
- Applicant: Ulterra Drilling Technologies, L.P.
- Applicant Address: US TX Fort Worth
- Assignee: Ulterra Drilling Technologies, L.P.
- Current Assignee: Ulterra Drilling Technologies, L.P.
- Current Assignee Address: US TX Fort Worth
- Agency: Kilpatrick Townsend & Stockton LLP
- Main IPC: E21B10/43
- IPC: E21B10/43 ; E21B10/60 ; E21B10/61

Abstract:
A drag bit includes a blade extending from the bit body and supporting inner cutters proximate the longitudinal axis and outer cutters spaced from the longitudinal axis. The inner cutters are rotationally offset from the outer cutters. During operation the inner cutters deposit cut material in a channel that is contiguous with a channel that receives material cut by the outer cutters. The cutters and the contiguous channels flush agglomerating material from the slots.
Public/Granted literature
- US20200048968A1 Downhole Tool with Fixed Cutters for Removing Rock Public/Granted day:2020-02-13
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