WO2009158080A1 - Threaded nozzle for a cutter bit - Google Patents
Threaded nozzle for a cutter bit Download PDFInfo
- Publication number
- WO2009158080A1 WO2009158080A1 PCT/US2009/044619 US2009044619W WO2009158080A1 WO 2009158080 A1 WO2009158080 A1 WO 2009158080A1 US 2009044619 W US2009044619 W US 2009044619W WO 2009158080 A1 WO2009158080 A1 WO 2009158080A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- nozzle
- cutter bit
- microinches
- threaded
- threaded nozzle
- Prior art date
Links
- 239000000843 powder Substances 0.000 claims abstract description 29
- 238000005245 sintering Methods 0.000 claims abstract description 24
- 238000003754 machining Methods 0.000 claims abstract description 10
- 238000005520 cutting process Methods 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 24
- 230000003746 surface roughness Effects 0.000 claims description 17
- 238000003825 pressing Methods 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- COLZOALRRSURNK-UHFFFAOYSA-N cobalt;methane;tungsten Chemical compound C.[Co].[W] COLZOALRRSURNK-UHFFFAOYSA-N 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 239000010941 cobalt Substances 0.000 description 6
- 229910017052 cobalt Inorganic materials 0.000 description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 5
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 229910052582 BN Inorganic materials 0.000 description 2
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005553 drilling Methods 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 239000012254 powdered material Substances 0.000 description 1
- 239000012255 powdered metal Substances 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 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
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
- B22F3/162—Machining, working after consolidation
-
- 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
- E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
Definitions
- the present invention relates to earth-boring drill bits and, in particular, to nozzles utilized in earth-boring drill bits,
- Earth-boring bits such as roller cone bits and fixed cutter bits are often equipped with threaded nozzles which provide fluid for flushing a bore hole of debris, flushing the bit and may also be a source for hydraulic drilling action.
- threaded nozzles are often made from a hardened material such as cemented carbide, i.e., tungsten-carbide cobalt.
- the present invention provides a threaded nozzle for use in a cutter bit. Threads are either machined into or pressed into a powder nozzle then the nozzle is sintered. Threads of the nozzles of the present invention have a rougher surface finish and are believed to be harder than threads machined post-sintering. Shaping of the threads into the nozzle before sintering is also more economical and efficient than post- sintering machining.
- One aspect of the present invention provides an unsintered, pressed powder nozzle for use in a cutter bit comprising a body comprising an exterior face, an inlet end and a discharge end, a bore extending through the body from the inlet end to the discharge end and external threads extending at least partially along the exterior face of the body of the unsintered nozzle.
- a threaded nozzle for use in a cutter bit comprising a body comprising an exterior face, an inlet end and a discharge end, a bore extending through the body from the inlet end to the discharge end and external threads extending at least partially along the exterior face of the body of the threaded nozzle, wherein the external threads have a surface roughness of at least 40 microinches.
- Another aspect of the present invention provides a method of producing a threaded nozzle for use in a cutter bit comprising the steps of first providing a pressed powder nozzle blank, second machining threads into the pressed powder nozzle blank and third sintering the pressed powder nozzle blank.
- Another aspect of the present invention provides a method of producing a threaded nozzle for use in a cutter bit comprising the steps of providing a die comprising a first end, a second end, a sleeve and a split insert having a thread forming section inserted into the sleeve, inserting a first punch into a first end of the die, filling the die with a metal powder or ceramic powder, inserting a second punch into the second end of the die, applying pressure to the powder within the die to create a pressed powder blank, removing the pressed powder blank from the die, and sintering the pressed powder blank.
- FIG. 1 is an oblique view of a threaded nozzle installed in a fixed cutter bit according to one embodiment of the present invention.
- FIG. 2 is a side view of a threaded nozzle according to one embodiment of the present invention.
- FIG. 3 is a front view of the threaded nozzle shown in FIG. 2.
- FIG. 4 is a cross section of the threaded nozzle of FIG. 3 along section line 4-4.
- FIG. 4A is an expanded view of detail 4 A in FIG. 4.
- FIG. 5 is a top view of a thread cutting tool according one embodiment of the present invention.
- FIG. 6 is an expanded view of the cutting end of the thread cutting tool of FIG. 5.
- FIG. 7 is front view of the thread cutting tool of FIG. 5.
- FIG. 8 is side view of the thread cutting tool of FIG. 5.
- FIG. 9 is a front view of a die for pressing threads according to one embodiment of the present invention.
- FIG. 10 is a cross section of the die of FIG. 9 along section line 10-10.
- FIG. 11 is an expanded view of the detail B of FIG. 10.
- FIG 12 is a front view of a top punch for use in conjunction with the die of FIG. 9 according to one embodiment of the present invention.
- FIG. 13 is a side view of the top punch of FIG. 12.
- FIG. 14 is an expanded view of detail C shown in FIG. 12.
- FIG. 15 is a side view of a bottom punch for use in conjunction with the die of FIG. 9 according to one embodiment of the present invention.
- FIG. 16 is a cross section of the bottom punch of FIG. 15 along section line 302.
- FIG. 17 is a side view of a core rod according to one embodiment of the present invention.
- any numerical range recited herein is intended to include all sub-ranges subsumed therein.
- a range of "1 to 10" is intended to include all sub-ranges between (and including) the recited minimum value of 1 and the recited maximum value of 10, that is, having a minimum value equal to or greater than 1 and a maximum value of equal to or less than 10.
- a fixed cutter bit 10 which may be used in an earth-boring application is shown.
- the fixed cutter bit 10 has a mandrel 12 with a threaded end 14.
- the threaded end 14 mates with a rotating hollow drill pipe (not shown) which is connected to other rotating equipment of an earth-boring machine.
- the lower end of the fixed cutter bit may have one or more cutting edges 16, often equipped with cutting inserts 18.
- Cutting inserts 18 may be brazed onto the cutting edge or attached by any suitable means known to those skilled in art.
- Junk slots 20 which allow cuttings and fluid to flow upward past the rotating cutter bit 10 may separate the cutting edges 16.
- One or more ducts 22 exit about the exterior of a lower portion of the fixed cutter bit 10.
- the ducts 22 are in fluid communication with the rotating hollow drill pipe (not shown) connected to a threaded portion 14 of the mandrel 12. Threaded nozzles 30 may be inserted into an outer end 24 of the duct 22. The outer end 24 of the duct 22 may also have a countersunk portion 26 so that the threaded nozzle 30 is recessed into the duct 22.
- the threaded nozzle 30 comprises a body 32 disposed about a longitudinal axis 40.
- the threaded nozzle has an inlet end 34 and a discharge end 36.
- External threads 50 are circumferentia ⁇ ly located at least about a portion of the exterior face 38 of the body 32 of the threaded nozzle 30.
- a hex head 60 may be located at the discharge end 36 of the threaded nozzle 30. Although a hex head 60 is shown, any configuration of screw or bolt head may be used including a recess in the discharge end 36 for receiving a driver bit. As can be seen in Fig.
- a nozzle bore 70 extends through the body 32 of the threaded nozzle 30.
- the nozzle bore 70 may be centered about the longitudinal axis 40 extending axially through the threaded nozzle 30.
- FIG. 4 shows a cross section of the nozzle of FIG. 3 along section line 4-4.
- the nozzle bore 70 may have a flared portion 72 at an inlet end 34 of the threaded nozzle 30.
- a detail view of Section A of Fig. 4 is shown in Fig. 4A.
- the external threads 50 have a leading face 54 and a trailing face 52. A flat or radiused transition between the leading face 54 and trailing face 52 is located at the radially outermost portion of the threads 50. Between each thread 50 is an undercut 80.
- the threaded nozzle may be made from tungsten carbide-cobalt or other material which is pressed, then sintered.
- carbides including tungsten carbide, titanium carbide and tantalum carbide, aluminum oxide, titanium nitride, cubic boron nitride, and including ceramics, and alloys and cermets of these materials.
- Suitable binder materials for these materials includes, by way of example, cobalt, copper, iron and nickel.
- the external threads of the threaded nozzle are formed in the green threaded nozzle blank prior to sintering.
- the term "green” refers to powdered material that has been pressed but not sintered.
- threads are machined into the threaded nozzle blank which has already undergone a first forming or pressing process to make the general shape of the nozzle.
- the thread cutting tool 100 shown in Figs. 5-8 may be used in a turning operation to machine external threads into the nozzle blank.
- nozzle blank refers to a nozzle made by a pressing and sintering process which has been pressed but not sintered and includes a green nozzle.
- the thread cutting tool 100 has a shank 110 and cutting end 120 for cutting the external threads of a green threaded nozzle.
- Cutting end 120 comprises a cutting tip 130.
- Extending from the cutting tip 130 is a projection 140 to create an appropriately sized undercut 80 between each external thread.
- the undercut 80 aides in the sintering process in at least one respect by reducing cracks in the finished product.
- the threads are machined into the nozzle blank in the pre-sintered stated. This can be done utilizing equipment such as a CNC machine or manual lathe, CNC or manual mill, thread die or other turning equipment.
- the nozzle blank may be held by mandrels, a vacuum apparatus or other gripping assembly to allow machining.
- the thread cutting tool 100 may be wholly or partially made from a hardened material such as diamond (PCD), boron nitride, tungsten carbide, or ceramic.
- the thread cutting tool 100 may also be coated with, for example, titanium nitride.
- the thread cutting tool 100 may be a tool like that shown in Figs. 5-8 but may also be a cutting wheel.
- threaded nozzles 30 and insert cutter bits may also accommodate a locking mechanism, for example, a pin.
- the threaded nozzles 30 may accommodate such locking mechanism by having, for example, a notch in the hex head 60 or a slot running axially through the external threads 50 and remainder of a threaded nozzle,
- threads are pressed into a nozzle using a die.
- a die 150 like that shown in Fig. 9-11 may be used to press threads into a nozzle blank.
- the die 150 may have a split insert 160 comprising two opposing segments 162, 164.
- the split insert 160 may have a generally cylindrical shape with the exception of planar faces 168, 170 on each opposing segment 162, 164.
- Each opposing segment 162, 164 has a thread forming section 172, 174 on its respective interior face 176, 178.
- the split insert 160 is inserted into sleeve 190.
- Sleeve 190 has an interior face 192 which is congruently shaped to mate with the exterior surface 180 of the split insert 160. Planar surfaces 168, 170 abut the interior face 192 of the sleeve 190 to prevent rotation of the split insert 160.
- the die 150 has a top end 152 and a bottom end 154.
- the top end 152 has a top end punch opening 156.
- the bottom end 154 has a bottom end punch opening 158.
- the split insert 160 When fully seated within the sleeve 190, the split insert 160 abuts a stop 194 at the bottom end 154 and is flush with the sleeve 190 at the top end 152.
- top punch 200 may be inserted into the top end punch opening 156.
- the die 150 is then filled with a predetermined amount of powdered metal or ceramic material
- Bottom punch 300 shown in FIGS. 15-16, may then be inserted into the bottom end punch opening 158.
- a core rod 400 extends through the bore of the bottom punch 300 and contact the top punch 200.
- Threaded blanks produced by the green machining or green pressing processes described above have significant advantages over other threaded nozzles.
- the threaded nozzles of the present invention are less time consuming and less costly to produce than other nozzles due in large part to the net shape of the green threaded nozzle being closer to the ultimate shape of the final product.
- the threaded nozzles of the present invention are also believed to have several physical improvements over other threaded nozzles.
- the threaded nozzles of the present invention are believed to have higher edge strength in the external threads than other threaded nozzles due to an increased amount of cobalt on the surface of the threaded nozzle since cobalt migrates to the surface during the sintering process.
- the external threads produced by the pre-sintering machining or pressing processes of the present invention also have an increased surface roughness (Ra) which in improves friction between the mating surface of the nozzle and the bit.
- surface roughness refers to the measure of finer surface irregularities in an article.
- Ra refers to the arithmetic average of the surface irregularities, namely surface peak and valleys, expressing in microinches.
- the Ra value for threads of the present invention is, for example, at least 40 microinches, for example greater than 50 microinches, for example, about 55 microinches to about 65 microinches.
- the increased friction decreases the probability that the bit will loosen during drilling.
- the pre-sintered threads also have less residual stresses than a hard-ground thread making the nozzles of the present invention tougher, less susceptible to cracking and more damage tolerant.
- a shaped nozzle according to the present invention was compared to a nozzle with machined threads.
- the shaped nozzle had a mean surface roughness of 57 microinches.
- the machined nozzle had a mean surface roughness of 34 microinches.
- Each nozzle was torque tested after being tightened to 80 psi.
- the shaped nozzle required and average of 72 psi to release while the machined nozzle released at 66 psi.
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)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112009001398T DE112009001398T5 (de) | 2008-06-26 | 2009-05-20 | Gewindedüse für einen Schneidmeißel |
GB1021832A GB2473576A (en) | 2008-06-26 | 2009-05-20 | Threaded nozzle for a cutter bit |
BRPI0910216A BRPI0910216A2 (pt) | 2008-06-26 | 2009-05-20 | bocal roscado para uma ferramenta de corte |
CN2009801238404A CN102076925A (zh) | 2008-06-26 | 2009-05-20 | 用于切削刀头的带螺纹的喷嘴 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/146,704 US20090321145A1 (en) | 2008-06-26 | 2008-06-26 | Threaded nozzle for a cutter bit |
US12/146,704 | 2008-06-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009158080A1 true WO2009158080A1 (en) | 2009-12-30 |
Family
ID=41444863
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US2009/044619 WO2009158080A1 (en) | 2008-06-26 | 2009-05-20 | Threaded nozzle for a cutter bit |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090321145A1 (de) |
CN (1) | CN102076925A (de) |
BR (1) | BRPI0910216A2 (de) |
DE (1) | DE112009001398T5 (de) |
GB (1) | GB2473576A (de) |
WO (1) | WO2009158080A1 (de) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5983475B2 (ja) * | 2013-03-14 | 2016-08-31 | 三菱マテリアル株式会社 | 掘削工具 |
US10487589B2 (en) | 2016-01-20 | 2019-11-26 | Baker Hughes, A Ge Company, Llc | Earth-boring tools, depth-of-cut limiters, and methods of forming or servicing a wellbore |
US10053916B2 (en) | 2016-01-20 | 2018-08-21 | Baker Hughes Incorporated | Nozzle assemblies including shape memory materials for earth-boring tools and related methods |
US10280479B2 (en) | 2016-01-20 | 2019-05-07 | Baker Hughes, A Ge Company, Llc | Earth-boring tools and methods for forming earth-boring tools using shape memory materials |
US10508323B2 (en) | 2016-01-20 | 2019-12-17 | Baker Hughes, A Ge Company, Llc | Method and apparatus for securing bodies using shape memory materials |
US10323464B1 (en) * | 2018-04-04 | 2019-06-18 | Saudi Arabian Oil Company | Wellbore drill bit nozzle |
CN110593766A (zh) * | 2019-10-18 | 2019-12-20 | 中国石油集团渤海钻探工程有限公司 | 一种可钻式水眼 |
CN114856453B (zh) * | 2022-07-06 | 2022-09-09 | 胜利油田万和石油工程技术有限责任公司 | 一种带有快速拆装式喷嘴的pdc钻头 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567954A (en) * | 1983-12-02 | 1986-02-04 | Norton Christensen, Inc. | Replaceable nozzles for insertion into a drilling bit formed by powder metallurgical techniques and a method for manufacturing the same |
US4603750A (en) * | 1984-10-02 | 1986-08-05 | Hughes Tool Company - Usa | Replaceable bit nozzle |
US20070102198A1 (en) * | 2005-11-10 | 2007-05-10 | Oxford James A | Earth-boring rotary drill bits and methods of forming earth-boring rotary drill bits |
WO2008010960A1 (en) * | 2006-07-17 | 2008-01-24 | Baker Hughes Incorporated | Cemented tungsten carbide rock bit cone |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4542798A (en) * | 1984-01-31 | 1985-09-24 | Reed Rock Bit Company | Nozzle assembly for an earth boring drill bit |
US4667756A (en) * | 1986-05-23 | 1987-05-26 | Hughes Tool Company-Usa | Matrix bit with extended blades |
US6332503B1 (en) * | 1992-01-31 | 2001-12-25 | Baker Hughes Incorporated | Fixed cutter bit with chisel or vertical cutting elements |
FR2726171B1 (fr) * | 1994-10-28 | 1997-01-24 | Jbs Sa | Dispositif de vis de liaison rehabitable pour articulation osseuse, destine notamment a la stabilisation d'au moins deux vertebres |
US6244364B1 (en) * | 1998-01-27 | 2001-06-12 | Smith International, Inc. | Earth-boring bit having cobalt/tungsten carbide inserts |
JP3702719B2 (ja) * | 1999-08-12 | 2005-10-05 | セイコーエプソン株式会社 | ネジの製造方法 |
JP4092871B2 (ja) * | 2000-12-04 | 2008-05-28 | 住友金属工業株式会社 | ねじ継手の潤滑処理に適した潤滑被膜形成用組成物 |
CN2597087Y (zh) * | 2002-12-19 | 2004-01-07 | 葫芦岛锌厂 | 一种用于气体雾化法制造细锌粉末的喷嘴 |
US7116794B2 (en) * | 2004-11-04 | 2006-10-03 | Patrik Westerkull | Hearing-aid anchoring element |
US20070264100A1 (en) * | 2004-11-19 | 2007-11-15 | Nagoya Industrial Science Research Institute | Multi-Pitch Screw and Method and Apparatus for manufacturing Multi-Pitch Screw |
DE102006000412A1 (de) * | 2006-08-23 | 2008-02-28 | Hilti Ag | Befestigungselement für harte Untergründe |
US7681668B2 (en) * | 2007-03-30 | 2010-03-23 | Baker Hughes Incorporated | Shrink-fit sleeve assembly for a drill bit, including nozzle assembly and method therefor |
-
2008
- 2008-06-26 US US12/146,704 patent/US20090321145A1/en not_active Abandoned
-
2009
- 2009-05-20 DE DE112009001398T patent/DE112009001398T5/de not_active Withdrawn
- 2009-05-20 BR BRPI0910216A patent/BRPI0910216A2/pt not_active Application Discontinuation
- 2009-05-20 CN CN2009801238404A patent/CN102076925A/zh active Pending
- 2009-05-20 WO PCT/US2009/044619 patent/WO2009158080A1/en active Application Filing
- 2009-05-20 GB GB1021832A patent/GB2473576A/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4567954A (en) * | 1983-12-02 | 1986-02-04 | Norton Christensen, Inc. | Replaceable nozzles for insertion into a drilling bit formed by powder metallurgical techniques and a method for manufacturing the same |
US4603750A (en) * | 1984-10-02 | 1986-08-05 | Hughes Tool Company - Usa | Replaceable bit nozzle |
US20070102198A1 (en) * | 2005-11-10 | 2007-05-10 | Oxford James A | Earth-boring rotary drill bits and methods of forming earth-boring rotary drill bits |
WO2008010960A1 (en) * | 2006-07-17 | 2008-01-24 | Baker Hughes Incorporated | Cemented tungsten carbide rock bit cone |
Also Published As
Publication number | Publication date |
---|---|
DE112009001398T5 (de) | 2011-05-12 |
US20090321145A1 (en) | 2009-12-31 |
CN102076925A (zh) | 2011-05-25 |
BRPI0910216A2 (pt) | 2016-04-12 |
GB201021832D0 (en) | 2011-02-02 |
GB2473576A (en) | 2011-03-16 |
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