Invention Grant
- Patent Title: Rolling cone drill bit having high density cutting elements
- Patent Title (中): 滚子钻头具有高密度切割元件
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Application No.: US12351188Application Date: 2009-01-09
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Publication No.: US09074431B2Publication Date: 2015-07-07
- Inventor: Gary Portwood , Luca Tedeschi , Giampaolo Ferrari , Josh Gatell , John Clunan , Allen D. White
- Applicant: Gary Portwood , Luca Tedeschi , Giampaolo Ferrari , Josh Gatell , John Clunan , Allen D. White
- Applicant Address: US TX Houston
- Assignee: Smith International, Inc.
- Current Assignee: Smith International, Inc.
- Current Assignee Address: US TX Houston
- Agency: Christie, Parker & Hale, LLP
- Main IPC: E21B10/16
- IPC: E21B10/16
Abstract:
A rolling cone drill bit for drilling in earthen formations having a plurality of rolling cone cutters. Each cone cutter includes a plurality of gage cutting elements, a first plurality of bottomhole cutting elements, and a second plurality of bottomhole cutter elements. Each of the first plurality of bottomhole cutting elements is staggered relative to the gage cutting elements on each cone cutter. Each of the second plurality of bottomhole cutting elements is staggered relative to the first plurality of bottomhole cutting elements on at least one cone cutter.
Public/Granted literature
- US20090188724A1 Rolling Cone Drill Bit Having High Density Cutting Elements Public/Granted day:2009-07-30
Information query
