Combination coring bit and drill bit using fixed cutter PDC cutters
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 2, 2014
Issued Date -
N/A
app pub date -
Oct 24, 2008
filing date -
Oct 24, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A drill bit having fixed Polycrystalline Diamond Compact cutters is used to drill a borehole having a core stump therein. A plurality of additional fixed Polycrystalline Diamond Compact cutters are disposed in the dome of the bit and are usable to concentrate stresses in the top end of the core stump to facilitate the cutting down of the core stump.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully