WO2006076795A1 - Bit for drilling a hole - Google Patents
Bit for drilling a hole Download PDFInfo
- Publication number
- WO2006076795A1 WO2006076795A1 PCT/CA2006/000053 CA2006000053W WO2006076795A1 WO 2006076795 A1 WO2006076795 A1 WO 2006076795A1 CA 2006000053 W CA2006000053 W CA 2006000053W WO 2006076795 A1 WO2006076795 A1 WO 2006076795A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- crown
- slot
- bit
- support member
- extending
- Prior art date
Links
- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 101
- 239000010432 diamond Substances 0.000 claims description 13
- 238000001125 extrusion Methods 0.000 claims 1
- 239000000758 substrate Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000000463 material Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 7
- 229910003460 diamond Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000000843 powder Substances 0.000 description 5
- 238000005219 brazing Methods 0.000 description 4
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000782128 Albizia adianthifolia Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/041—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with cylinder saws, e.g. trepanning; saw cylinders, e.g. having their cutting rim equipped with abrasive particles
-
- 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
- E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T408/00—Cutting by use of rotating axially moving tool
- Y10T408/81—Tool having crystalline cutting edge
Definitions
- the present invention relates to the general field of drilling, and is particularly concerned with a drill bit.
- drill bits are used to drill through rock, concrete and other materials.
- these bits include a crown made of a mixture of metal and diamonds. This crown is the portion of the bit that erodes the material through which a bore is drilled.
- Some bits include a central passageway through which water is injected.
- the crown typically includes a plurality of segments separated by openings.
- the crown material used to manufacture the crowns of the bits is typically substantially harder than the material through which drilling is performed.
- this crown material is typically relatively brittle. Accordingly, the dimensions of the openings between the segments in the crown are limited by the brittleness of the material used to manufacture these crowns. [0005] Indeed, if these openings extend too deep within the crown, there is a risk that a segment will be broken while drilling. In this case, there is a need to remove the bit from the drilling apparatus and to use a new bit.
- bits including relatively shallow openings will be worn from drilling in a relatively short amount of time. Therefore, once more, there is a need to take time to remove the bit from the bore to drill at relatively short time intervals to replace the worn out drill bit.
- a drill bit including a tool body having an open upper end and an annular diamond blade portion is described.
- the diamond blade portion includes an upper circumferential edge and a lower circumferential edge, the diamond blade portion being attached at the lower circumferential edge to the open upper end of the tool body.
- a plurality of upper cuts each extends downwardly from the upper circumferential edge of the diamond blade portion.
- the upper cuts terminate at a depth of the diamond blade portion above the lower circumferential edge.
- a plurality of lower slots each extends upwardly from the lower circumferential edge of the diamond blade portion and terminate at a height below the upper circumferential edge.
- the lower slots are positioned under and between the upper cuts and extend higher than the bottom of the upper cuts.
- this drill bit is not suitable for use in wet drilling wherein water is injected inside the drill bit during the drilling process.
- the configuration of the cuts in this drill bit does not allow the water to flow radially outwardly towards the outside of the drill bit as no longitudinal passageways are present that would allow the water to move away from the crown of the drill bit after it exits the crown.
- An object of the present invention is therefore to provide an improved drill bit.
- the invention provides a bit for drilling a hole.
- the bit includes: [0014] - a support member, the support member defining a support member proximal end and a substantially longitudinally opposed support member distal end, the support member having a passageway extending substantially longitudinally therethrough;
- a substantially annular crown defining a crown distal end and an opposed crown proximal end, a radially inwardly located crown inner surface and a radially outwardly located crown outer surface, a crown inner diameter and a crown outer diameter, the crown extending from the support member such that the crown proximal end is located substantially adjacent the support member distal end;
- the slot includes a slot proximal segment extending between the reinforcing member and the slot proximal wall and a slot distal segment extending between the reinforcing member and the crown distal end.
- the bit includes a plurality of slots each having a reinforcing member extending substantially circumferentially thereacross.
- the slots define a plurality of drilling segments, the reinforcing members interconnecting the segments.
- the reinforcing members increase the robustness of the segments. Accordingly, such segments can extend longitudinally away from the support over a greater distance than in drill bits wherein reinforcing members are not provided. These segments are relatively less prone to failure than non-reinforced segments and allow to manufacture drill bits having a relatively longer useful life because of the presence of the reinforcing members.
- the reinforcing members allow to correct an uneven abrasion of the segments.
- the bit is relatively easy to manufacture and is typically compatible with existing drilling equipments and methods.
- the manufacturing method used to manufacture the crown causes deviations in the shape of the crown from a perfectly annular shape to be relatively small.
- the invention provides a bit for drilling a hole.
- the bit includes:
- a support member defining a support member proximal end and a substantially longitudinally opposed support member distal end, the support member having a passageway extending substantially longitudinally therethrough;
- a substantially annular crown defining a crown distal end and an opposed crown proximal end, a radially inwardly located crown inner surface and a radially outwardly located crown outer surface, a crown inner diameter and a crown outer diameter, the crown having a crown radial thickness equal to a difference between the crown outer and inner diameters, the crown extending from the support member such that the crown proximal end is located substantially adjacent the support member distal end;
- Figure 1 in a perspective view, illustrates a bit for drilling a hole in accordance with an embodiment of the present invention
- Figure 2 in a top elevation view, illustrates the bit of Figure 1 ;
- Ill-Ill of Figure 2 illustrates the bit of Figure 1 ;
- Figure 4A in a partial side cross-sectional view along the line
- Ill-Ill of Figure 2 illustrates a stage in the wearing out of the bit of Figure 1 ;
- Ill-Ill of Figure 2 illustrates yet another stage in the wearing out of the bit of Figure 1 ;
- Ill-Ill of Figure 2 illustrates yet another stage in the wearing out of the bit of Figure 1 ;
- Figure 5A in a partial side cross-sectional view along the line
- Ill-Ill of Figure 2 illustrates the bit of Figure 1 ;
- Figure 5B in a side cross-sectional view, illustrates the detail
- Figure 5C in a side cross-sectional view, illustrates a region corresponding to the detail VB in a bit in accordance with an alternative embodiment of the present invention having alternative reinforcing members extending within slots of a crown of the drill bit;
- Figure 5D in a side cross-sectional view, illustrates a region corresponding to the detail VB in a bit in accordance with another alternative embodiment of the present invention having other alternative reinforcing members extending within slots of a crown of the drill bit;
- Figure 5E in a side cross-sectional view, illustrates a region corresponding to the detail VB in a bit in accordance with yet another alternative embodiment of the present invention having yet other alternative reinforcing members extending within slots of a crown of the drill bit;
- Figure 5F in a side cross-sectional view, illustrates a region corresponding to the detail VB in a bit in accordance with yet another alternative embodiment of the present invention having yet other alternative reinforcing members extending within slots of a crown of the drill bit;
- Figure 5G in a side cross-sectional view, illustrates a region corresponding to the detail VB in a bit in accordance with yet another alternative embodiment of the present invention having yet other alternative reinforcing members extending within slots of a crown of the drill bit;
- Figure 5H in a side cross-sectional view, illustrates a region corresponding to the detail VB in a bit in accordance with yet another alternative embodiment of the present invention having yet other alternative reinforcing members extending within slots of a crown of the drill bit;
- Figure 6A in a top elevation view, illustrates a bit in accordance with an alternative embodiment of the present invention having alternatively shaped slots formed into a crown of the drill bit;
- Figure 6B in a top elevation view, illustrates a bit in accordance with another alternative embodiment of the present invention having other alternatively shaped slots formed into a crown of the drill bit;
- Figure 6C in a top elevation view, illustrates a bit in accordance with yet another an alternative embodiment of the present invention having yet other alternatively shaped slots formed into a crown of the drill bit.
- Figure 1 illustrates a bit 10 for drilling a hole (not shown in the drawings).
- the bit 10 includes a support member 12 and a crown 14 extending from the support member 12.
- a plurality of slots 16 is formed into the crown 14 and defines a plurality of drilling segments 18.
- the bit 10 further includes a plurality of reinforcing members 20, each reinforcing member 20 extending between adjacent segments 18.
- the reinforcing members 20 improve the structural integrity of the crown 14. Therefore, the crown 14 may extend longitudinally from the support member 12 over a distance that is larger than distances that would be achievable using prior art crown configurations.
- the support member 12 defines a support member proximal end 22 and a substantially longitudinally opposed support member distal end 24.
- the support member 12 has a passageway 26 extending substantially longitudinally therethrough.
- the support member 12 is substantially tubular and cylindrical. In these embodiments, the support member 12 defines support member internal and external diameters.
- the crown 14 is substantially annular and defines a crown distal end 28 and an opposed crown proximal end 30, a crown distal surface 29 at the crown distal end 28, a radially inwardly located crown inner surface 32 and a radially outwardly located crown outer surface 34, a crown inner diameter and a crown outer diameter.
- the crown 14 has a crown radial thickness equal to a difference between the crown outer and inner diameters.
- the crown 14 extends from the support member 12 such that the crown proximal end 30 is located substantially adjacent the support member distal end 24.
- the crown inner and outer surfaces 32 and 34 are substantially cylindrical. However, in alternative embodiments of the invention, the crown inner and outer surfaces 32 and 34 have any other suitable shape.
- the crown distal surface 29 is substantially perpendicular to the crown inner and outer surfaces 32 and 34. Also, while not necessarily present in all embodiments of the invention, two substantially annular circumferential grooves 35 are formed into the crown distal surface 29. The grooves 35 have a substantially V-shaped cross-section.
- the crown outer diameter is substantially larger than the support member outer diameter and the crown inner diameter is substantially smaller than the support member inner diameter.
- the slots 16 allow the passage of water from the passageway 26, into the slots 16 and outside of the support member 12.
- no water is used for drilling and the crown 14 may then have radial dimensions substantially similar to the radial dimensions of the support member 12.
- the slots 16 extend between the crown inner and outer surfaces 32 and 34 from the crown distal end 28 substantially longitudinally towards the crown proximal end 30.
- the slots 16 define a slot first side wall 36, a substantially circumferentially opposed slot second side wall 38 and a slot proximal wall 40 extending therebetween substantially opposed the crown distal end 28.
- the first and second slot side walls 36 and 38 extend substantially radially.
- the slot proximal wall 40 is defined by the support member 12.
- the slot proximal wall 40 is formed by the crown 14 (not shown in the drawings).
- the reinforcing members 20 extend substantially circumferentially across the slots 16 between the slot first and second walls 36 and 38.
- One, two or more reinforcing members 20 extend across at least some of the slots 16.
- Figure 3 shows an embodiment of the invention wherein two reinforcing members 20 are substantially longitudinally spaced apart relative to each other within each slot 16.
- Figure 5E shows an embodiment of the invention wherein two reinforcing members 2Oe are substantially radially spaced apart relative to each other within each slot 16.
- Figures 5D, 5F, 5G and 5H show embodiments of the invention wherein only one reinforcing member 2Od, 2Of, 2Og and 2Oh extends within each slot 16.
- the reinforcing members 20 are substantially cylindrical.
- the reinforcing members 20 may have other suitable shapes.
- the reinforcing members 20 are spaced apart from the slot bottom wall 40 and from the crown distal end 28.
- the slots 16 each include a slot proximal segment 42 extending between the reinforcing member 20 and the slot proximal wall 40 and a slot distal segment 44 extending between the reinforcing member 20 and the crown distal end 28.
- the reader skilled in the art will readily appreciate that the slot distal and proximal segments 44 and 42 have been defined with respect with one of the reinforcing members 20 extending across one of the slots 16. However, slot segments may be defined relatively to other reinforcing member 20 extending across this slot 16.
- the reinforcing members 20 extend substantially radially within each slot 16 over a reinforcing member radial extension, the reinforcing member radial extension being substantially smaller than the crown radial thickness.
- the reinforcing member radial extension is from about 1 percent to about 90 percents of the crown radial thickness.
- the reinforcing member radial extension is selected such that it is as small as possible while providing a suitable degree of reinforcement of the crown 14.
- reinforcing member radrahextertsions of from about 20 percents to about 50 percents of the crown radial thickness produce good results.
- reinforcing member radial extensions of from about 1.5 mm to about 5 mm produce good results.
- the reinforcing member longitudinal dimension must be sufficiently small to allow water and drilling debris to flow radially within the slots 16 at a sufficient rate.
- reinforcing members 20 extending substantially longitudinally within the slots 16 over a reinforcing member longitudinal dimension smaller than about 25 percent of a distance between the crown distal end 28 and the slot proximal wall 40 produce good results in operation.
- bit 10 is manufactured using graphite molds.
- such a mold is substantially annular.
- inserts are provided at locations corresponding to the slots16.
- a mixture of metal and diamonds in a powder form is inserted within the mold and pressure is applied onto the mixture to squeeze the particles forming the powder together.
- the segments are infiltrated with a compatible brazing alloy at a predetermined temperature.
- This infiltration process confers solidity to the crown 14, as the brazing alloy acts as a binder for the metal and diamonds particles.
- the brazing alloy also reinforces a link between the crown 14 and the support member 12.
- the reinforcing members 20 are formed by using inserts shaped substantially similarly to the slots 16, each insert including one or more bores having a shape substantially similar to the shape of a reinforcing member 20. Then, when pressure is applied onto the powder, the mixture of diamonds and metal flows into the bores and forms the reinforcing members 20.
- the bores of the inserts are filled with the mixture that forms the reinforcing members 20. Then, filling the sections of the molds corresponding to the segments 18 produces the crown 14.
- the segments 18 are manufactured separately and simply positioned within a mold with inserts including the reinforcing members 20. Subsequently, the powder is squeezed and brazing is performed as described hereinabove.
- the segments 18 and the reinforcing members 20 are manufactured separately.
- the reinforcing members 20 are either manufactured using the same materials as those used in manufacturing the segments 14, or they are simply manufactured using a metal. Thereafter, the reinforcing members 20 are brazed, welded, soldered or otherwise secured to the segments 18.
- the crown 14 may be manufactured using any other suitable abrasive dispersed in a suitable matrix.
- a suitable matrix includes a composite material, such as for example carbon fibers in a suitable resin.
- the bit 10 is inserted at the end of a drilling apparatus and used to drill through rock, concrete or any other material: If requrrettrwater is forced through the passageway 26. The water lubricates the contact between the bit 10 and the material being drilled and carries the debris produced by the drilling process away from the bit 10. To that effect, the at least part of the debris and the water passes through the slots16.
- the reinforcing members 20 improve the solidity of the drill bit
- the segments 18 are progressively worn. When the segments 18 are worn up to a point wherein the crown distal surface 29 reaches the reinforcing members 18, the reinforcing members 18 are eroded along with the segments 18.
- the segments 18 extend away from the support member 12 over a distance small enough that the risk of breaking the segments 18 by the drilling process is significantly reduced.
- bits similar to the bit 10 with slots 16 that were 16 mm deep were at least as strong and at least as resistant to accidental damage to the segments 18 as a bit that did not include reinforcing members 20 but that had slots of a depth of only 12 mm.
- FIGs 4A to 4D illustrate an example of wearing out of the bit 10 wherein uneven wear is produces.
- the bit 10 has not been used.
- the bit 10 is worn out so that a crown distal surface 29b is convex between the crown inner and outer surfaces 32 and 34. This convex shape is undesirable as it affects the drilling performance of the bit 10.
- a crown distal surface 29c is convex between the crown inner and outer surfaces 32 and 34, as seen in Figure 4C. Further use of the bit 10 results in an increase in wear adjacent the crown inner and outer surfaces 32 and 34, which produces a substantially flat crown distal surface 29d, as seen in Figure 4D.
- Figures 5C through 5H illustrate the cross-section of alternative reinforcing members 20c through 2Oh.
- the reinforcing members 20c through 2Oh are all substantially elongated and of substantially uniform cross-section.
- the reinforcing members 20c are of a substantially rectangular cross-section.
- the reinforcing members 2Of are of a substantially square cross-section.
- the reinforcing members 2Od are substantially plate- shaped and extend at an angle relatively to a longitudinal axis of the bit 10.
- the reinforcing members 2Oe are substantially plate-shaped and extend substantially longitudinally.
- the reinforcing members 2Oh are of a substantially star-shaped cross-section.
- reinforcing members 20 and 20c through 2Oh are only examples and that many other suitable reinforcing members are within the scope of the invention.
- reinforcing members having alternative uniform cross- sections and reinforcing members having non-uniform cross-sections are also within the scope of the invention.
- FIGS 6A, 6B and 6C illustrate alternative slots 16a, 16b and 16c and alternative segments 18a, 18b and 18c of alternative bits 10a, 10b and 10c.
- the slots 16a do not extend perfectly radially. Instead, the slots 16a are angled relatively to radiuses of the bit.
- the slots 16b are similar to the slots 16.
- the slots 16c are tapered in a radially outwardly directed orientation.
- the segments 18a have a shape different than the segments
- the segments 18b and 18c each have a radially outwardly located outer groove 19 and 19' formed longitudinally thereinto.
- segments and slots are well-known in the art and will therefore not be described in further details. Also, the segments and slots may take any other alternative shapes in alternative embodiments of the invention.
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Drilling Tools (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/795,029 US7641004B2 (en) | 2005-01-18 | 2006-01-16 | Drill bit |
BRPI0606205-9A BRPI0606205A2 (en) | 2005-01-18 | 2006-01-16 | drill bit for drilling a hole |
EP06704371.1A EP1841944B1 (en) | 2005-01-18 | 2006-01-16 | Bit for drilling a hole |
MX2007008674A MX2007008674A (en) | 2005-01-18 | 2006-01-16 | Bit for drilling a hole. |
AU2006207842A AU2006207842B2 (en) | 2005-01-18 | 2006-01-16 | Bit for drilling a hole |
CN2006800074314A CN101137816B (en) | 2005-01-18 | 2006-01-16 | Bit for drilling a hole |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US64436905P | 2005-01-18 | 2005-01-18 | |
US60/644,369 | 2005-01-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006076795A1 true WO2006076795A1 (en) | 2006-07-27 |
Family
ID=36691943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2006/000053 WO2006076795A1 (en) | 2005-01-18 | 2006-01-16 | Bit for drilling a hole |
Country Status (10)
Country | Link |
---|---|
US (2) | US7641004B2 (en) |
EP (1) | EP1841944B1 (en) |
CN (1) | CN101137816B (en) |
AU (1) | AU2006207842B2 (en) |
BR (1) | BRPI0606205A2 (en) |
CA (1) | CA2532911C (en) |
MX (1) | MX2007008674A (en) |
RU (1) | RU2388895C2 (en) |
WO (1) | WO2006076795A1 (en) |
ZA (1) | ZA200706733B (en) |
Cited By (18)
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US7628228B2 (en) | 2006-12-14 | 2009-12-08 | Longyear Tm, Inc. | Core drill bit with extended crown height |
US7695542B2 (en) | 2006-11-30 | 2010-04-13 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools |
WO2011081775A1 (en) * | 2009-12-15 | 2011-07-07 | Longyear Tm, Inc. | Drill bits with axially-tapered waterways |
AU2011201711B1 (en) * | 2006-12-14 | 2011-07-28 | Boart Longyear Company | Core drill bit with extended matrix height |
AU2011226849B2 (en) * | 2006-11-30 | 2012-09-06 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools |
US8590646B2 (en) | 2009-09-22 | 2013-11-26 | Longyear Tm, Inc. | Impregnated cutting elements with large abrasive cutting media and methods of making and using the same |
US8657894B2 (en) | 2011-04-15 | 2014-02-25 | Longyear Tm, Inc. | Use of resonant mixing to produce impregnated bits |
AU2011226848B2 (en) * | 2006-11-30 | 2014-03-13 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools |
WO2014094124A1 (en) * | 2012-12-17 | 2014-06-26 | Groupe Fordia Inc. | Drill bit |
EP2771533A4 (en) * | 2011-10-25 | 2015-05-27 | Longyear Tm Inc | High-strength, high-hardness binders and drilling tools formed using the same |
EP2318640A4 (en) * | 2008-08-15 | 2016-01-06 | Sandvik Intellectual Property | Core drill bit |
US9267332B2 (en) | 2006-11-30 | 2016-02-23 | Longyear Tm, Inc. | Impregnated drilling tools including elongated structures |
US9279292B2 (en) | 2013-11-20 | 2016-03-08 | Longyear Tm, Inc. | Drill bits having flushing and systems for using same |
US9500036B2 (en) | 2006-12-14 | 2016-11-22 | Longyear Tm, Inc. | Single-waterway drill bits and systems for using same |
US9506298B2 (en) | 2013-11-20 | 2016-11-29 | Longyear Tm, Inc. | Drill bits having blind-hole flushing and systems for using same |
US9540883B2 (en) | 2006-11-30 | 2017-01-10 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
WO2019207347A1 (en) * | 2018-04-27 | 2019-10-31 | Abu Dhabi National Oil Company | Oil well drill bit |
US10702975B2 (en) | 2015-01-12 | 2020-07-07 | Longyear Tm, Inc. | Drilling tools having matrices with carbide-forming alloys, and methods of making and using same |
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CN101128644B (en) * | 2005-02-23 | 2011-12-14 | 哈利伯顿能源服务公司 | Drill bit with stationary cutting structure |
PE20090909A1 (en) * | 2007-09-05 | 2009-07-02 | Groupe Fordia Inc | DRILL HOLE |
AU2009280036B2 (en) | 2008-08-08 | 2013-04-04 | Saint-Gobain Abrasifs | Abrasive tools having a continuous metal phase for bonding an abrasive component to a carrier |
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US8261858B1 (en) * | 2011-09-02 | 2012-09-11 | Halliburton Energy Services, Inc. | Element containing thermally stable polycrystalline diamond material and methods and assemblies for formation thereof |
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CA2825729C (en) | 2012-11-21 | 2018-05-22 | Diamond Products, Limited | Diamond mining core drill bit and methods of making thereof |
CA2854691C (en) | 2013-07-03 | 2017-10-31 | Karl H. Moller | Method of making diamond mining core drill bit and reamer |
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CN103510862A (en) * | 2013-10-09 | 2014-01-15 | 无锡中地地质装备有限公司 | High-strength drill bit for exploratory drilling |
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US4499959A (en) * | 1983-03-14 | 1985-02-19 | Christensen, Inc. | Tooth configuration for an earth boring bit |
EP0363313A2 (en) | 1988-10-05 | 1990-04-11 | HILTI Aktiengesellschaft | Hollow stone-drilling tool |
US5025871A (en) * | 1989-04-05 | 1991-06-25 | Aulette Stewart | Drilling method and rotary drill bit crown |
US5316416A (en) | 1992-09-29 | 1994-05-31 | Ehwa Diamond Ind. Co., Ltd. | Diamond cutting tool for hard articles |
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- 2006-01-16 EP EP06704371.1A patent/EP1841944B1/en active Active
- 2006-01-16 CA CA002532911A patent/CA2532911C/en active Active
- 2006-01-16 US US11/795,029 patent/US7641004B2/en active Active
- 2006-01-16 WO PCT/CA2006/000053 patent/WO2006076795A1/en active Application Filing
- 2006-01-16 BR BRPI0606205-9A patent/BRPI0606205A2/en not_active Application Discontinuation
- 2006-01-16 MX MX2007008674A patent/MX2007008674A/en active IP Right Grant
- 2006-01-16 AU AU2006207842A patent/AU2006207842B2/en active Active
- 2006-01-16 RU RU2007131078/03A patent/RU2388895C2/en active
- 2006-01-17 US US11/332,335 patent/US20070131456A1/en not_active Abandoned
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US7695542B2 (en) | 2006-11-30 | 2010-04-13 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools |
US9540883B2 (en) | 2006-11-30 | 2017-01-10 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
US9404311B2 (en) | 2006-11-30 | 2016-08-02 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
US9267332B2 (en) | 2006-11-30 | 2016-02-23 | Longyear Tm, Inc. | Impregnated drilling tools including elongated structures |
US8783384B2 (en) | 2006-11-30 | 2014-07-22 | Longyear Tm, Inc. | Fiber-containing diamond-impregnated cutting tools and methods of forming and using same |
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Also Published As
Publication number | Publication date |
---|---|
ZA200706733B (en) | 2008-09-25 |
US7641004B2 (en) | 2010-01-05 |
EP1841944A1 (en) | 2007-10-10 |
AU2006207842B2 (en) | 2010-11-25 |
EP1841944A4 (en) | 2013-01-23 |
CN101137816A (en) | 2008-03-05 |
US20080066969A1 (en) | 2008-03-20 |
EP1841944B1 (en) | 2014-03-05 |
BRPI0606205A2 (en) | 2009-06-02 |
CN101137816B (en) | 2011-06-01 |
RU2007131078A (en) | 2009-02-27 |
RU2388895C2 (en) | 2010-05-10 |
US20070131456A1 (en) | 2007-06-14 |
MX2007008674A (en) | 2008-03-04 |
CA2532911A1 (en) | 2006-07-18 |
CA2532911C (en) | 2008-04-15 |
AU2006207842A1 (en) | 2006-07-27 |
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