Invention Application
US20110031029A1 CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE
有权
切割元件放置在固定的切割钻头上，以减少钻石表的碎片
- Patent Title: CUTTING ELEMENT PLACEMENT ON A FIXED CUTTER DRILL BIT TO REDUCE DIAMOND TABLE FRACTURE
- Patent Title (中): 切割元件放置在固定的切割钻头上，以减少钻石表的碎片
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Application No.: US12537899Application Date: 2009-08-07
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Publication No.: US20110031029A1Publication Date: 2011-02-10
- Inventor: David Gavia , Floyd C. Felderhoff , Matthew R. Isbell , Michael L. Doster
- Applicant: David Gavia , Floyd C. Felderhoff , Matthew R. Isbell , Michael L. Doster
- Main IPC: E21B10/55
- IPC: E21B10/55 ; E21B10/42 ; E21B10/54
Abstract:
A rotary drag bit includes a primary cutter row comprising at least one primary cutter mounted on a blade, at least some cutters in the primary cutter row having a portion of a cutting surface thereof covered by a portion of the blade. A backup cutter row comprising at least one cutter may also be included, and at least a portion of a cutting surface of at least some cutters in the backup cutter row is covered by a portion of the blade. Enhanced support for cutters is provided against impact loading.
Public/Granted literature
- US09359825B2 Cutting element placement on a fixed cutter drill bit to reduce diamond table fracture Public/Granted day:2016-06-07
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