WO2010014725A4 - Earth boring drill bits with using opposed kerfing for cutters - Google Patents
Earth boring drill bits with using opposed kerfing for cutters Download PDFInfo
- Publication number
- WO2010014725A4 WO2010014725A4 PCT/US2009/052124 US2009052124W WO2010014725A4 WO 2010014725 A4 WO2010014725 A4 WO 2010014725A4 US 2009052124 W US2009052124 W US 2009052124W WO 2010014725 A4 WO2010014725 A4 WO 2010014725A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cutting elements
- blades
- primary
- drill bit
- disposed
- Prior art date
Links
- 229910003460 diamond Inorganic materials 0.000 claims 2
- 239000010432 diamond Substances 0.000 claims 2
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000000919 ceramic Substances 0.000 claims 1
- 238000005553 drilling Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A drill bit configured having eight blades thereon with secondary cutters on four blades using opposed kerfing for the secondary cutters located on four of the blades.
Claims
1. A drill bit for drilling a subterranean formation comprising: a bit body having a face, a plurality of primary blades, and a plurality of secondary blades, each secondary blade of the plurality of secondary blades located between two blades of the plurality of primary blades; a first plurality of cutting elements disposed on a first primary blade of the plurality of primary blades in radial positions thereon; a second plurality of cutting elements disposed on the first primary blade of the plurality of primary blades, the second plurality of cutting elements being disposed in radial positions behind the first plurality of cutting elements and being located in radial positions at one of substantially between the cutting elements of the first plurality disposed in front thereof and substantially behind the cutting elements of the first plurality disposed in front thereof; a third plurality of cutting elements disposed in radial positions on a first secondary blade of the plurality of secondary blades, the first secondary blade of the plurality of secondary blades located adjacent the first blade of the plurality of primary blades; a fourth plurality of cutting elements disposed on a second primary blade of the plurality of primary blades; and a fifth plurality of cutting elements disposed on the second primary blade of the plurality of primary blades in radial positions thereon, the fifth plurality of cutting elements being disposed in radial positions behind the fourth plurality of cutting elements and being located one of substantially behind the cutting elements of the fourth plurality disposed in front thereof and substantially between the cutting elements of the fourth plurality disposed in front thereof, at least some of the fifth plurality of cutting elements having substantially the same radial positions on the drill bit as the radial positions of cutting elements of the first plurality of cutting elements on the first primary blade of the plurality of primary blades.
2. The drill bit of claim 1 , wherein the drill bit includes one of an even number of blades thereon and an odd number of blades thereon. 15
3. The drill bit of claim 2, wherein a plurality of cutting elements of the at least one type and a plurality of cutting elements of at least another, different type are disposed on each blade.
4. The drill bit of claim 1, wherein the first, second, third, fourth, and fifth cutting elements are disposed in pockets formed in the blades.
5. The drill bit of claim 1, wherein the first, second, third, fourth, and fifth cutting elements comprise one of superabrasive cutting elements and abrasive cutting elements.
6. The drill bit of claim 5, wherein the superabrasive cutting elements comprise PDC cutting elements and the abrasive cutting elements comprise tungsten carbide cutting elements.
7. The drill bit of claim 1 , wherein a central portion of an outer profile of the face is configured as an inverted cone and is surrounded by a nose.
8. The drill bit of claim 1, wherein cutting elements are selected from the group consisting of a PDC cutting element, a thermally stable diamond cutting element, and a natural diamond cutting element.
9. The drill bit of claim 1 , wherein the cutting elements are selected from the group consisting of a tungsten carbide cutting element, another metal carbide cutting element and a ceramic.
10. The drill bit of claim 1, wherein the second primary blade of the plurality of primary blades is located approximately 180° circumferentially from the first primary blade of the plurality of primary blades. 16
11. The drill bit of claim 1, wherein the second primary blade of the plurality of primary blades is located less than approximately 180° circumferentially from the first primary blade of the plurality of primary blades.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US8481108P | 2008-07-30 | 2008-07-30 | |
| US61/084,811 | 2008-07-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2010014725A2 WO2010014725A2 (en) | 2010-02-04 |
| WO2010014725A3 WO2010014725A3 (en) | 2010-04-01 |
| WO2010014725A4 true WO2010014725A4 (en) | 2010-06-10 |
Family
ID=41607183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2009/052124 WO2010014725A2 (en) | 2008-07-30 | 2009-07-29 | Earth boring drill bits with using opposed kerfing for cutters |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US20100025121A1 (en) |
| WO (1) | WO2010014725A2 (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8887839B2 (en) * | 2009-06-25 | 2014-11-18 | Baker Hughes Incorporated | Drill bit for use in drilling subterranean formations |
| US8327957B2 (en) * | 2010-06-24 | 2012-12-11 | Baker Hughes Incorporated | Downhole cutting tool having center beveled mill blade |
| US8936109B2 (en) | 2010-06-24 | 2015-01-20 | Baker Hughes Incorporated | Cutting elements for cutting tools |
| GB2537250A (en) | 2013-12-06 | 2016-10-12 | Halliburton Energy Services Inc | Rotary drill bit including multi-layer cutting elements |
| WO2016081807A1 (en) * | 2014-11-21 | 2016-05-26 | Smith International, Inc. | Rolling cutter assemblies and components incorporated therein |
| US20220074270A1 (en) * | 2019-03-07 | 2022-03-10 | Halliburton Energy Services, Inc. | Shaped cutter arrangements |
| USD941373S1 (en) * | 2019-09-16 | 2022-01-18 | Kyocera Sgs Precision Tools, Inc. | Rougher tool |
| USD941374S1 (en) * | 2020-03-16 | 2022-01-18 | Kyocera Sgs Precision Tools, Inc. | Finisher tool |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9314954D0 (en) * | 1993-07-16 | 1993-09-01 | Camco Drilling Group Ltd | Improvements in or relating to torary drill bits |
| US5595252A (en) * | 1994-07-28 | 1997-01-21 | Flowdril Corporation | Fixed-cutter drill bit assembly and method |
| US5549171A (en) * | 1994-08-10 | 1996-08-27 | Smith International, Inc. | Drill bit with performance-improving cutting structure |
| GB9421924D0 (en) * | 1994-11-01 | 1994-12-21 | Camco Drilling Group Ltd | Improvements in or relating to rotary drill bits |
| US6089336A (en) * | 1995-10-10 | 2000-07-18 | Camco International (Uk) Limited | Rotary drill bits |
| US5816346A (en) * | 1996-06-06 | 1998-10-06 | Camco International, Inc. | Rotary drill bits and methods of designing such drill bits |
| US6164394A (en) * | 1996-09-25 | 2000-12-26 | Smith International, Inc. | Drill bit with rows of cutters mounted to present a serrated cutting edge |
| GB9712342D0 (en) * | 1997-06-14 | 1997-08-13 | Camco Int Uk Ltd | Improvements in or relating to rotary drill bits |
| US6672406B2 (en) * | 1997-09-08 | 2004-01-06 | Baker Hughes Incorporated | Multi-aggressiveness cuttting face on PDC cutters and method of drilling subterranean formations |
| US6321862B1 (en) * | 1997-09-08 | 2001-11-27 | Baker Hughes Incorporated | Rotary drill bits for directional drilling employing tandem gage pad arrangement with cutting elements and up-drill capability |
| US6125947A (en) * | 1997-09-19 | 2000-10-03 | Baker Hughes Incorporated | Earth-boring drill bits with enhanced formation cuttings removal features and methods of drilling |
| US6568492B2 (en) * | 2001-03-02 | 2003-05-27 | Varel International, Inc. | Drag-type casing mill/drill bit |
| US6883623B2 (en) * | 2002-10-09 | 2005-04-26 | Baker Hughes Incorporated | Earth boring apparatus and method offering improved gage trimmer protection |
| US7954570B2 (en) * | 2004-02-19 | 2011-06-07 | Baker Hughes Incorporated | Cutting elements configured for casing component drillout and earth boring drill bits including same |
| US20060278442A1 (en) * | 2005-06-13 | 2006-12-14 | Kristensen Henry L | Drill bit |
| US20070261890A1 (en) * | 2006-05-10 | 2007-11-15 | Smith International, Inc. | Fixed Cutter Bit With Centrally Positioned Backup Cutter Elements |
| US7896106B2 (en) * | 2006-12-07 | 2011-03-01 | Baker Hughes Incorporated | Rotary drag bits having a pilot cutter configuraton and method to pre-fracture subterranean formations therewith |
| CN101622421A (en) * | 2007-01-25 | 2010-01-06 | 贝克休斯公司 | Rotary drag bit |
-
2009
- 2009-07-29 WO PCT/US2009/052124 patent/WO2010014725A2/en active Application Filing
- 2009-07-29 US US12/511,233 patent/US20100025121A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20100025121A1 (en) | 2010-02-04 |
| WO2010014725A2 (en) | 2010-02-04 |
| WO2010014725A3 (en) | 2010-04-01 |
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| Date | Code | Title | Description |
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