Invention Grant
- Patent Title: Hybrid disc bit with optimized PDC cutter placement
- Patent Title (中): 具有优化的PDC刀具放置的混合盘片钻头
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Application No.: US11232434Application Date: 2005-09-21
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Publication No.: US09574405B2Publication Date: 2017-02-21
- Inventor: Peter Thomas Cariveau , Prabhakaran K. Centala , Zhehua Zhang
- Applicant: Peter Thomas Cariveau , Prabhakaran K. Centala , Zhehua Zhang
- Applicant Address: US TX Houston
- Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee Address: US TX Houston
- Main IPC: E21B10/12
- IPC: E21B10/12 ; E21B10/16
Abstract:
The invention provides an improved drill bit and a method for designing thereof. The drill bit includes a bit body, a journal depending from the bit body, and a disc rotatably mounted on the journal. The disc of the drill bit has PDC cutting elements disposed on it. Also provided is an improved cutting structure for the discs of the drill bit. The cutting structure includes a portion that is comprised from PDC.
Public/Granted literature
- US20070062736A1 Hybrid disc bit with optimized PDC cutter placement Public/Granted day:2007-03-22
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