WO2011097575A4 - Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same - Google Patents
Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same Download PDFInfo
- Publication number
- WO2011097575A4 WO2011097575A4 PCT/US2011/023922 US2011023922W WO2011097575A4 WO 2011097575 A4 WO2011097575 A4 WO 2011097575A4 US 2011023922 W US2011023922 W US 2011023922W WO 2011097575 A4 WO2011097575 A4 WO 2011097575A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- earth
- cutting element
- boring tool
- gouging
- shearing
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 9
- 238000010008 shearing Methods 0.000 claims abstract 28
- 239000000463 material Substances 0.000 claims abstract 13
- 230000015572 biosynthetic process Effects 0.000 claims abstract 12
- 229910003460 diamond Inorganic materials 0.000 claims 8
- 239000010432 diamond Substances 0.000 claims 8
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/56—Button-type inserts
- E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
- E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
- E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
- E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable
Abstract
Claims
30
STATEMENT UNDER ARTICLE 19(1) (RULE 46.4)
Applicant has amended claims 1 and 14, and added new claims 21 and 22. The amendments have no impact on the description and the drawings. The amendments to claim 1 recite that the at least one gouging cutting element has a forward rake angle. The amendments to claim 14 recite positioning the backup gouging cutting element to have a forward rake angle. New claim 21 recites that the at least one gouging cutting element has a forward rake angle greater than approximately 15°. New claim 22 recites that the at least one gouging cutting element is positioned to follow a path offset from a path of the at least one shearing cutting element.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP11740494.7A EP2531690B1 (en) | 2010-02-05 | 2011-02-07 | Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
CA2788816A CA2788816C (en) | 2010-02-05 | 2011-02-07 | Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
ZA2012/05714A ZA201205714B (en) | 2010-02-05 | 2012-07-27 | Shape cutting elements on drill bits and other earth-boring tolls, and methods of forming same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US30194610P | 2010-02-05 | 2010-02-05 | |
US61/301,946 | 2010-02-05 |
Publications (3)
Publication Number | Publication Date |
---|---|
WO2011097575A2 WO2011097575A2 (en) | 2011-08-11 |
WO2011097575A3 WO2011097575A3 (en) | 2011-11-10 |
WO2011097575A4 true WO2011097575A4 (en) | 2011-12-29 |
Family
ID=44352794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2011/023922 WO2011097575A2 (en) | 2010-02-05 | 2011-02-07 | Shaped cutting elements on drill bits and other earth-boring tools, and methods of forming same |
Country Status (5)
Country | Link |
---|---|
US (1) | US8794356B2 (en) |
EP (1) | EP2531690B1 (en) |
CA (1) | CA2788816C (en) |
WO (1) | WO2011097575A2 (en) |
ZA (1) | ZA201205714B (en) |
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-
2011
- 2011-02-07 US US13/022,288 patent/US8794356B2/en active Active
- 2011-02-07 EP EP11740494.7A patent/EP2531690B1/en active Active
- 2011-02-07 WO PCT/US2011/023922 patent/WO2011097575A2/en active Application Filing
- 2011-02-07 CA CA2788816A patent/CA2788816C/en active Active
-
2012
- 2012-07-27 ZA ZA2012/05714A patent/ZA201205714B/en unknown
Also Published As
Publication number | Publication date |
---|---|
ZA201205714B (en) | 2013-05-29 |
WO2011097575A3 (en) | 2011-11-10 |
CA2788816C (en) | 2015-11-24 |
EP2531690A4 (en) | 2017-06-14 |
WO2011097575A2 (en) | 2011-08-11 |
EP2531690B1 (en) | 2019-04-03 |
EP2531690A2 (en) | 2012-12-12 |
CA2788816A1 (en) | 2011-08-11 |
US8794356B2 (en) | 2014-08-05 |
US20110192651A1 (en) | 2011-08-11 |
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