WO2010126817A4 - Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods - Google Patents
Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods Download PDFInfo
- Publication number
- WO2010126817A4 WO2010126817A4 PCT/US2010/032370 US2010032370W WO2010126817A4 WO 2010126817 A4 WO2010126817 A4 WO 2010126817A4 US 2010032370 W US2010032370 W US 2010032370W WO 2010126817 A4 WO2010126817 A4 WO 2010126817A4
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bearing block
- drill bit
- forming
- drilling
- wear
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract 14
- 230000000712 assembly Effects 0.000 title abstract 2
- 238000000429 assembly Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 claims abstract 41
- 238000005553 drilling Methods 0.000 claims abstract 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract 12
- 230000001747 exhibiting effect Effects 0.000 claims abstract 4
- 230000008878 coupling Effects 0.000 claims abstract 3
- 238000010168 coupling process Methods 0.000 claims abstract 3
- 238000005859 coupling reaction Methods 0.000 claims abstract 3
- 229910000831 Steel Inorganic materials 0.000 claims 3
- 239000000956 alloy Substances 0.000 claims 3
- 239000002131 composite material Substances 0.000 claims 3
- 239000011159 matrix material Substances 0.000 claims 3
- 239000010959 steel Substances 0.000 claims 3
- 229910010293 ceramic material Inorganic materials 0.000 claims 2
- 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
- 229910001092 metal group alloy Inorganic materials 0.000 claims 1
- 238000005755 formation reaction Methods 0.000 abstract 4
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
-
- 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
- E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
- E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
- E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed 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)
Abstract
Methods of drilling subterranean formations include coupling at least one bearing block having an initial thickness to a drill bit, engaging a formation with the drill bit within an initial depth of cut range, and reducing the initial thickness of the bearing block by contacting the formation to cause the initial depth of cut range to be at least partially increased. Methods of forming drill bits for drilling subterranean formations include forming at least one rubbing surface of at least one bearing block from at least one material exhibiting a reduced coefficient of friction and coupling the at least one bearing block to the drill bit. Drill bit assemblies include at least one bearing block having a distal portion configured to provide an initial depth of cut range and a base portion configured to provide an increased depth of cut range greater than the initial depth of cut range.
Claims
1. A method of forming a drill bit for drilling a subterranean formation, the method comprising:
forming at least one bearing block at least partially from a material selected for wear;
disposing the at least one bearing block in at least one receptacle formed in a portion of the drill bit; and
coupling the at least one bearing block to the drill bit.
2. The method of claim 1, wherein forming the at least one bearing block at least partially from a material selected for wear comprises forming the at least one bearing block at least partially from at least one of a relatively soft carbide material, a steel material, an alloy material, and a particle-matrix composite material.
3. The method of claim 1, further comprising forming the at least one bearing block from a first material selected for wear and a second material selected to exhibit a wear resistance greater than the first material.
4. The method of claim 3, wherein forming the at least one bearing block from a first material selected for wear and a second material selected to exhibit a wear resistance greater than the first material comprises forming a rubbing surface of the at least one bearing block with the first material and forming a base portion of the at least one bearing block with the second material.
5. The method of claim 3, wherein forming the at least one bearing block from a first material selected for wear and a second material selected to exhibit a wear resistance greater than the first material comprises forming a rubbing surface of the at least one bearing block ,with the second material and forming a base portion of the at least one bearing block with the first material. 26
6. The method of claim 3, wherein forming the at least one bearing block from a first material selected for wear and a second material selected to exhibit a wear resistance greater than the first material comprises:
selecting the first material from at least one of a relatively soft carbide material, a steel material, a metal alloy material, and a particle-matrix composite material; and selecting the second material from at least one of a diamond material, a thermally stable polycrystalline material, a ceramic material, and a tungsten carbide material.
7. A method of drilling a subterranean formation, the method comprising:
engaging a formation with at least one cutter of a drill bit formed by the method recited in any one of claims 1 through 6 within an initial depth of cut range;
drilling the formation with the drill bit; and
reducing an initial thickness of the at least one bearing block by contacting the formation with at least one rubbing surface of the at least one bearing block to cause the initial depth of cut range to be at least partially increased.
8. The method according to claim 7, wherein drilling the formation with the drill bit comprises drilling a first formation using the drill bit with a first average depth of cut and further comprising drilling a second, subsequent formation using the drill bit with a second, substantially greater average depth of cut.
9. A drill bit assembly for subterranean drilling, comprising:
a drill bit comprising a plurality of blades, a plurality of cutting elements disposed on the plurality of blades, and at least one receptacle located in at least one blade of the plurality of blades; and
at least one bearing block disposed in the at least one receptacle, the at least one bearing block comprising:
a distal portion configured to provide at least one cutting element of the plurality of cutting elements with an initial depth of cut range; and
a base portion configured to provide the at least one cutting element of the plurality of cutting elements with an increased depth of cut range greater than the initial depth of cut range, wherein the distal portion of the at least one bearing block extends laterally outward from the base portion of the at least one bearing block. 27
10. The drill bit assembly for subterranean drilling of claim 9, wherein the at least one bearing block further comprises at least one of a tapered shape and a concave shape.
11. The drill bit assembly for subterranean drilling of claim 9 or claim 10, wherein the distal portion of the at least one bearing block comprises a first material selected for wear and the base portion of the at least one bearing block comprises a second material exhibiting a wear resistance greater than the first material.
12. The drill bit assembly for subterranean drilling of claim 1 1, wherein the distal portion of the at least one bearing block comprises at least one of a soft carbide material, a steel material, an alloy material, and a particle-matrix composite material and the base portion of the at least one bearing block comprises at least one of a diamond material, a thermally stable polycrystalline material, a ceramic material, and a tungsten carbide material.
13. The drill bit assembly for subterranean drilling of claim 9 or claim 10, wherein the distal portion of the at least one bearing block comprises a first material comprising a wear resistant material and the base portion of the at least one bearing block comprises a second material exhibiting a wear resistance less than the first material.
14. The drill bit assembly for subterranean drilling of claim 11, wherein at least one of the distal portion of the at least one bearing block and the base portion of the at least one bearing block comprise a material exhibiting a coefficient of friction between 0.01 and 0.20.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP10770172.4A EP2425089A4 (en) | 2009-04-30 | 2010-04-26 | Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods |
| BRPI1014619A BRPI1014619A2 (en) | 2009-04-30 | 2010-04-26 | support blocks for drill bits, drill bit assemblies including support blocks and related methods |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US17441209P | 2009-04-30 | 2009-04-30 | |
| US61/174,412 | 2009-04-30 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| WO2010126817A2 WO2010126817A2 (en) | 2010-11-04 |
| WO2010126817A3 WO2010126817A3 (en) | 2011-03-03 |
| WO2010126817A4 true WO2010126817A4 (en) | 2011-04-21 |
Family
ID=43029563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/US2010/032370 WO2010126817A2 (en) | 2009-04-30 | 2010-04-26 | Bearing blocks for drill bits, drill bit assemblies including bearing blocks and related methods |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20100276200A1 (en) |
| EP (1) | EP2425089A4 (en) |
| BR (1) | BRPI1014619A2 (en) |
| WO (1) | WO2010126817A2 (en) |
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| 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 |
| US6230828B1 (en) * | 1997-09-08 | 2001-05-15 | Baker Hughes Incorporated | Rotary drilling bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics |
| GB2339810B (en) * | 1998-07-14 | 2002-05-22 | Camco Internat | A method of determining characteristics of a rotary drag-type drill bit |
| US6200514B1 (en) * | 1999-02-09 | 2001-03-13 | Baker Hughes Incorporated | Process of making a bit body and mold therefor |
| US6460631B2 (en) * | 1999-08-26 | 2002-10-08 | Baker Hughes Incorporated | Drill bits with reduced exposure of cutters |
| US6298930B1 (en) * | 1999-08-26 | 2001-10-09 | Baker Hughes Incorporated | Drill bits with controlled cutter loading and depth of cut |
| US6575256B1 (en) * | 2000-01-11 | 2003-06-10 | Baker Hughes Incorporated | Drill bit with lateral movement mitigation and method of subterranean drilling |
| US6427792B1 (en) * | 2000-07-06 | 2002-08-06 | Camco International (Uk) Limited | Active gauge cutting structure for earth boring drill bits |
| US6450271B1 (en) * | 2000-07-21 | 2002-09-17 | Baker Hughes Incorporated | Surface modifications for rotary drill bits |
| US6408958B1 (en) * | 2000-10-23 | 2002-06-25 | Baker Hughes Incorporated | Superabrasive cutting assemblies including cutters of varying orientations and drill bits so equipped |
| US6823952B1 (en) * | 2000-10-26 | 2004-11-30 | Smith International, Inc. | Structure for polycrystalline diamond insert drill bit body |
| US6568492B2 (en) * | 2001-03-02 | 2003-05-27 | Varel International, Inc. | Drag-type casing mill/drill bit |
| US6659199B2 (en) * | 2001-08-13 | 2003-12-09 | Baker Hughes Incorporated | Bearing elements for drill bits, drill bits so equipped, and method of drilling |
| US6883623B2 (en) * | 2002-10-09 | 2005-04-26 | Baker Hughes Incorporated | Earth boring apparatus and method offering improved gage trimmer protection |
| US6904983B2 (en) * | 2003-01-30 | 2005-06-14 | Varel International, Ltd. | Low-contact area cutting element |
| US7625521B2 (en) * | 2003-06-05 | 2009-12-01 | Smith International, Inc. | Bonding of cutters in drill bits |
| US20040244540A1 (en) * | 2003-06-05 | 2004-12-09 | Oldham Thomas W. | Drill bit body with multiple binders |
| US20040245024A1 (en) * | 2003-06-05 | 2004-12-09 | Kembaiyan Kumar T. | Bit body formed of multiple matrix materials and method for making the same |
| US20050230150A1 (en) * | 2003-08-28 | 2005-10-20 | Smith International, Inc. | Coated diamonds for use in impregnated diamond bits |
| US20050211475A1 (en) * | 2004-04-28 | 2005-09-29 | Mirchandani Prakash K | Earth-boring bits |
| US7308957B2 (en) * | 2005-01-18 | 2007-12-18 | Smith International, Inc. | Fixed-head bit with stabilizing features |
| US8141665B2 (en) * | 2005-12-14 | 2012-03-27 | Baker Hughes Incorporated | Drill bits with bearing elements for reducing exposure of cutters |
| US7814997B2 (en) * | 2007-06-14 | 2010-10-19 | Baker Hughes Incorporated | Interchangeable bearing blocks for drill bits, and drill bits including same |
-
2010
- 2010-04-26 BR BRPI1014619A patent/BRPI1014619A2/en not_active IP Right Cessation
- 2010-04-26 EP EP10770172.4A patent/EP2425089A4/en not_active Withdrawn
- 2010-04-26 US US12/766,988 patent/US20100276200A1/en not_active Abandoned
- 2010-04-26 WO PCT/US2010/032370 patent/WO2010126817A2/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP2425089A4 (en) | 2014-06-04 |
| WO2010126817A3 (en) | 2011-03-03 |
| WO2010126817A2 (en) | 2010-11-04 |
| BRPI1014619A2 (en) | 2016-04-05 |
| EP2425089A2 (en) | 2012-03-07 |
| US20100276200A1 (en) | 2010-11-04 |
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