WO2004040095A1 - Piece rapportee d'outil - Google Patents
Piece rapportee d'outil Download PDFInfo
- Publication number
- WO2004040095A1 WO2004040095A1 PCT/IB2003/003892 IB0303892W WO2004040095A1 WO 2004040095 A1 WO2004040095 A1 WO 2004040095A1 IB 0303892 W IB0303892 W IB 0303892W WO 2004040095 A1 WO2004040095 A1 WO 2004040095A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool insert
- protective layer
- cutting edge
- substrate
- ultra
- Prior art date
Links
- 238000005520 cutting process Methods 0.000 claims abstract description 59
- 239000000758 substrate Substances 0.000 claims abstract description 43
- 238000005553 drilling Methods 0.000 claims abstract description 31
- 239000011241 protective layer Substances 0.000 claims abstract description 29
- 239000010410 layer Substances 0.000 claims abstract description 24
- 239000003082 abrasive agent Substances 0.000 claims abstract description 21
- 239000011435 rock Substances 0.000 claims abstract description 15
- 238000003801 milling Methods 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000000126 substance Substances 0.000 claims abstract description 9
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 22
- 239000000463 material Substances 0.000 claims description 11
- 229910001315 Tool steel Inorganic materials 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 22
- 239000010959 steel Substances 0.000 description 22
- 229910003460 diamond Inorganic materials 0.000 description 9
- 239000010432 diamond Substances 0.000 description 9
- 238000006243 chemical reaction Methods 0.000 description 5
- 239000002775 capsule Substances 0.000 description 4
- GJNGXPDXRVXSEH-UHFFFAOYSA-N 4-chlorobenzonitrile Chemical compound ClC1=CC=C(C#N)C=C1 GJNGXPDXRVXSEH-UHFFFAOYSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002243 precursor 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
- E21B10/46—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
- E21B10/5676—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a cutting face with different segments, e.g. mosaic-type inserts
-
- 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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
Definitions
- THIS invention relates to tool inserts and more particularly tool inserts which can be used as cutting elements in rotary drilling bits intended for subterranean rock drilling.
- diamond compacts also known as PCD
- PCD diamond compacts
- cutters in drilling operations is well known due to the high abrasion resistant properties of diamond cutters. It is also well established that diamond cutters cannot be used satisfactorily for milling or drilling through ferrous substrates such as steel. Therein lies a problem in the use of diamond cutters in certain down the hole drilling operations, particularly with regard to subterranean directional drilling, such as drilling horizontally into a rockbed from an underground location in a vertical borehole or shaft.
- a steel casing is typically positioned down the vertical borehole or shaft, creating a lining therefor in the region requiring horizontal drilling.
- a deflector which is positioned adjacent the position where horizontal drilling is to be carried out. The function of the deflector, which is generally wedge-shaped, is to cause the drill to change direction and begin milling through the steel casing to create a window to the bedrock.
- tungsten carbide cutters are typically used in the drill bit to mill through the steel casing. Once through the casing, the tungsten carbide inserts have to be replaced with abrasive resistant cutters such as diamond cutters in order to drill into the bedrock. This means that the drill bit has to be removed and replaced with an appropriate bit. As the drill strings that have to be removed are very long, this is a time consuming exercise. that results in costly downtime.
- a tool insert comprises:
- the layer of ultra-hard abrasive material having a side surface and a top surface, a portion of the periphery of the top surface of the ultra- hard abrasive material providing a primary cutting edge for the tool insert;
- a protective layer a surface of the protective layer being bonded to the top surface and/or the side surface of the ultra-hard abrasive material so as to protect the primary cutting edge thereof, a periphery of the protective layer providing a secondary cutting edge for the tool insert, the depth of the protective layer being selected so as to be sufficient to protect the primary cutting edge whilst cutting, milling or drilling a window through a first substance, such as a casing or lining of a borehole or shaft, but to expose the primary cutting edge upon encountering a second substance, such as a rockbed.
- a first substance such as a casing or lining of a borehole or shaft
- a method of drilling a horizontal or angled hole in a subterranean rock formation includes the steps of: 1) preparing the. site for horizontal or angled drilling by a) using an existing borehole or, if not available, drilling a borehole into a subterranean rock formation to an appropriate depth and b) lining the borehole, at least in the region where horizontal or angled drilling is to take place, with a casing or lining having a passage and a deflector means mounted in the passage;
- each cutting tool insert comprising a substrate, a layer of ultra-hard abrasive material bonded to the substrate, the ultra-hard abrasive material providing a primary cutting edge for the tool insert, and a protective layer for protecting the primary cutting edge and for providing a secondary cutting edge;
- the depth of the protective layer is such as to protect the primary cutting edge whilst milling through the casing or lining and to expose the primary cutting edge upon encountering the subterranean rock formation.
- the above method can also be used for the drilling of multiple directional holes from a central vertical borehole.
- Figure 1 is a schematic sectional side view of a rotary drill bit in a subterranean rock drilling operation
- Figure 2 is a sectional side view of a first embodiment of a tool insert of the invention
- Figure 3 is a plan view of the tool insert of figure 2;
- Figure 4 is a sectional side view of a second embodiment of a tool insert of the invention.
- Figure 5 is a sectional side view of a third embodiment of a tool insert of the invention.
- Figure 6 is a plan view of the tool insert of Figure 5;
- Figure 7 is a sectional side view of a fourth embodiment of a tool insert of the invention.
- Figure 8 is a plan view of the tool insert of Figure 7;
- Figure 9 is a sectional side view of a fifth embodiment of a tool insert of the invention.
- Figure 10 is a plan view of the tool insert of Figure 9. DESCRIPTION OF EMBODIMENTS
- a drill assembly 10 consists of a rotary drill string 12 and a rotary drill bit 14, of the drag bit kind in this case.
- the drill bit 14 is directed down a passage 16 within a steel tubular casing 18.
- the steel casing 18 is anchored in a borehole or shaft 20 drilled into a subterranean bedrock or rock formation 22.
- a deflector 26 which is attached to the casing 18 and which has previously been positioned adjacent the region 'X', causes the bit 14 to change direction in this manner.
- the deflector 26 is supported by an anchor 28.
- the layer of ultra-hard abrasive material will generally be a layer of PCD, although under appropriate conditions PCBN may also be used.
- the layer may also be a layer of diamond produced by chemical vapour deposition, called CVD diamond.
- the substrate of the tool insert will generally be a cemented carbide substrate. Such substrates are well known in the art and are generally cemented tungsten carbide substrates.
- the protective layer which may be an extension of the substrate or a separate layer, will also generally be of cemented tungsten carbide, although it may be of a different grade to that of the substrate. In certain instances, the' protective layer may be formed of tool steel or other appropriate material suited to milling through steel or other material used for the casing or lining.
- a cemented carbide substrate 40 has a planar base surface 42 and an upper surface 44.
- a centrally located recess 46 is formed in the upper surface 44.
- the recess 46 is surrounded by an annular region 48 and has a surface 50. Although the recess 46 is centrally located in this embodiment, it could also be positioned off centre.
- the recess 46 is filled with diamond particles. Thereafter, the diamond- filled substrate 40 is placed in a reaction capsule and the reaction capsule placed in the reaction zone of a conventional high pressure/high temperature apparatus. The capsule is exposed to conditions of high pressure and temperature suitable to produce a diamond abrasive compact (PCD) 52. Under these conditions the PCD 52 will form and bond to the cemented carbide substrate over the entire surface which defines the recess 46. A cutting edge 54, the primary cutting edge of the tool insert, is defined by the periphery of the PCD 52.
- PCD diamond abrasive compact
- the cemented carbide / PCD body is then removed from the reaction capsule using known techniques. As such the cemented carbide / PCD body forms a precursor of a tool insert of the invention.
- the annular region 48 of the substrate 40 is ground or otherwise removed so as to leave a predetermined depth, indicated by the numeral 56, of tungsten carbide material.
- This depth of material 56 is selected so as to correspond to the amount of tungsten carbide material required to mill through the wall of a steel casing or lining of a borehole, as described above.
- the depth of tungsten carbide 56 provides a protective layer for the primary cutting edge 54 of the PCD 52, and also a secondary cutting edge 58 for milling through the steel casing. Once a window has been milled through the steel casing, ideally the layer 56 should be almost expended so as to expose the cutting edge 54 for drilling into the rockbed.
- the tungsten carbide substrate 40 whilst having the desired properties for forming the PCD layer 52, may not have the desired properties for milling through a steel casing or lining.
- the annular protective layer 48 may be replaced by tungsten carbide of a different grade or by another suitable material, such as tool steel, for example.
- the annular region 48 in such a case could be formed as a ring in situ or, alternatively, could be formed as a separate ring component which , is attached to the tool insert.
- the ring 48 may be attached to the tool insert, which has been machined to accept the ring, by for example brazing, press fitting, shrink fitting or any other convenient method.
- a second embodiment of a tool insert of the invention comprises a tungsten carbide substrate 60, a PCD layer 62 having a cutting edge 64, and a tungsten carbide protective overiayer 66 having a cutting edge 68.
- the depth 70 of the protective overiayer 66 is selected so as to mill a window through the steel casing or lining of a borehole in a subterranean bedrock whilst exposing the PCD cutting edge 64 once through the steel casing.
- a third embodiment of a tool insert of the invention is illustrated in figures 5 and 6 of the accompanying drawings.
- the tool insert consists of a cemented carbide substrate 80, a PCD layer 82, having a cutting edge 84, and a tungsten carbide protective segment 86, having a cutting edge 88, bonded to the substrate 80.
- the tungsten carbide segment 86 could be an extension of the substrate 80.
- the tungsten carbide segment 86 could be formed of a tungsten carbide material of a different grade that is adapted to the particular substrate to be milled.
- the depth of the tungsten carbide segment 86 is once again selected so as to protect the cutting edge 84 whilst drilling through a steel casing, but to expose the cutting edge 84 soon after encountering the subterranean bedrock.
- a tungsten carbide substrate 90 includes a number of parallel recesses 92 in which parallel PCD segments or strips 94 are formed.
- the PCD segments 94 are protected by respective tungsten carbide segments or strips 96.
- the cutting edges 98 of respective PCD segments 94 are protected by the tungsten carbide segments 96, which .in turn have cutting edges 100.
- This arrangement allows the tool insert to be used for cutting through successive layers of steel and subterranean bedrock and can therefore be used multiple times.
- a fifth embodiment of a tool insert of the invention comprises a substrate 110 on which is formed a PCD layer 112.
- the substrate 110 and PCD layer 112 would be formed in a conventional high pressure/high temperature apparatus, whereafter the relevant portion of the substrate would be ground away to expose the primary cutting edge 1 14 of the PCD layer 112.
- the substrate 10 and PCD layer 112 are brazed into a cup 116 which is typically formed of a high speed tool steel, which cup 116 includes a cutting edge 118 for milling through the steel casing or lining of a borehole in a subterranean rockbed.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
- Processing Of Terminals (AREA)
- Gripping On Spindles (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Surgical Instruments (AREA)
- Sampling And Sample Adjustment (AREA)
- Eye Examination Apparatus (AREA)
Abstract
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/533,046 US20060144621A1 (en) | 2002-10-30 | 2003-09-12 | Tool insert |
EP03809804A EP1565642B1 (fr) | 2002-10-30 | 2003-09-12 | Piece rapportee d'outil |
CA2504518A CA2504518C (fr) | 2002-10-30 | 2003-09-12 | Piece rapportee d'outil |
AU2003259458A AU2003259458A1 (en) | 2002-10-30 | 2003-09-12 | Tool insert |
DE60335568T DE60335568D1 (de) | 2002-10-30 | 2003-09-12 | Werkzeugeinsatz |
AT03809804T ATE493559T1 (de) | 2002-10-30 | 2003-09-12 | Werkzeugeinsatz |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA200208777 | 2002-10-30 | ||
ZA2002/8777 | 2002-10-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004040095A1 true WO2004040095A1 (fr) | 2004-05-13 |
Family
ID=32231603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2003/003892 WO2004040095A1 (fr) | 2002-10-30 | 2003-09-12 | Piece rapportee d'outil |
Country Status (9)
Country | Link |
---|---|
US (1) | US20060144621A1 (fr) |
EP (1) | EP1565642B1 (fr) |
CN (1) | CN100557188C (fr) |
AT (1) | ATE493559T1 (fr) |
AU (1) | AU2003259458A1 (fr) |
CA (1) | CA2504518C (fr) |
DE (1) | DE60335568D1 (fr) |
WO (1) | WO2004040095A1 (fr) |
ZA (1) | ZA200503785B (fr) |
Cited By (40)
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GB2405424A (en) * | 2003-08-29 | 2005-03-02 | Smith International | Cutting element structure for roller cone bit |
WO2007069025A3 (fr) * | 2005-12-12 | 2007-09-13 | Element Six Production Pty Ltd | Procede de coupe |
WO2007122490A2 (fr) * | 2006-04-21 | 2007-11-01 | Element Six (Production) (Pty) Ltd | MATÉRIAU COMPOSITE DE NBc ET OUTIL |
US7303030B2 (en) | 2003-11-25 | 2007-12-04 | Smith International, Inc. | Barrier coated granules for improved hardfacing material |
US7726420B2 (en) | 2004-04-30 | 2010-06-01 | Smith International, Inc. | Cutter having shaped working surface with varying edge chamfer |
US7757791B2 (en) | 2005-01-25 | 2010-07-20 | Smith International, Inc. | Cutting elements formed from ultra hard materials having an enhanced construction |
US7828088B2 (en) | 2005-05-26 | 2010-11-09 | Smith International, Inc. | Thermally stable ultra-hard material compact construction |
US7836981B2 (en) | 2005-02-08 | 2010-11-23 | Smith International, Inc. | Thermally stable polycrystalline diamond cutting elements and bits incorporating the same |
US7874383B1 (en) | 2005-01-17 | 2011-01-25 | Us Synthetic Corporation | Polycrystalline diamond insert, drill bit including same, and method of operation |
US7942219B2 (en) | 2007-03-21 | 2011-05-17 | Smith International, Inc. | Polycrystalline diamond constructions having improved thermal stability |
US7980334B2 (en) | 2007-10-04 | 2011-07-19 | Smith International, Inc. | Diamond-bonded constructions with improved thermal and mechanical properties |
US8020643B2 (en) | 2005-09-13 | 2011-09-20 | Smith International, Inc. | Ultra-hard constructions with enhanced second phase |
US8028771B2 (en) | 2007-02-06 | 2011-10-04 | Smith International, Inc. | Polycrystalline diamond constructions having improved thermal stability |
US8057562B2 (en) | 2006-02-09 | 2011-11-15 | Smith International, Inc. | Thermally stable ultra-hard polycrystalline materials and compacts |
US8083012B2 (en) | 2008-10-03 | 2011-12-27 | Smith International, Inc. | Diamond bonded construction with thermally stable region |
US8197936B2 (en) | 2005-01-27 | 2012-06-12 | Smith International, Inc. | Cutting structures |
US8309050B2 (en) | 2005-05-26 | 2012-11-13 | Smith International, Inc. | Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance |
US8377157B1 (en) | 2009-04-06 | 2013-02-19 | Us Synthetic Corporation | Superabrasive articles and methods for removing interstitial materials from superabrasive materials |
US8499861B2 (en) | 2007-09-18 | 2013-08-06 | Smith International, Inc. | Ultra-hard composite constructions comprising high-density diamond surface |
US8590130B2 (en) | 2009-05-06 | 2013-11-26 | Smith International, Inc. | Cutting elements with re-processed thermally stable polycrystalline diamond cutting layers, bits incorporating the same, and methods of making the same |
US8771389B2 (en) | 2009-05-06 | 2014-07-08 | Smith International, Inc. | Methods of making and attaching TSP material for forming cutting elements, cutting elements having such TSP material and bits incorporating such cutting elements |
US8783389B2 (en) | 2009-06-18 | 2014-07-22 | Smith International, Inc. | Polycrystalline diamond cutting elements with engineered porosity and method for manufacturing such cutting elements |
US8852304B2 (en) | 2004-05-06 | 2014-10-07 | Smith International, Inc. | Thermally stable diamond bonded materials and compacts |
US8881851B2 (en) | 2003-12-05 | 2014-11-11 | Smith International, Inc. | Thermally-stable polycrystalline diamond materials and compacts |
US8932376B2 (en) | 2005-10-12 | 2015-01-13 | Smith International, Inc. | Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength |
US8951317B1 (en) | 2009-04-27 | 2015-02-10 | Us Synthetic Corporation | Superabrasive elements including ceramic coatings and methods of leaching catalysts from superabrasive elements |
US9144886B1 (en) | 2011-08-15 | 2015-09-29 | Us Synthetic Corporation | Protective leaching cups, leaching trays, and methods for processing superabrasive elements using protective leaching cups and leaching trays |
US9233422B2 (en) | 2009-05-15 | 2016-01-12 | Element Six Limited | Superhard cutter element |
US9297211B2 (en) | 2007-12-17 | 2016-03-29 | Smith International, Inc. | Polycrystalline diamond construction with controlled gradient metal content |
US9352447B2 (en) | 2009-09-08 | 2016-05-31 | Us Synthetic Corporation | Superabrasive elements and methods for processing and manufacturing the same using protective layers |
US9394747B2 (en) | 2012-06-13 | 2016-07-19 | Varel International Ind., L.P. | PCD cutters with improved strength and thermal stability |
US9550276B1 (en) | 2013-06-18 | 2017-01-24 | Us Synthetic Corporation | Leaching assemblies, systems, and methods for processing superabrasive elements |
US9789587B1 (en) | 2013-12-16 | 2017-10-17 | Us Synthetic Corporation | Leaching assemblies, systems, and methods for processing superabrasive elements |
US9908215B1 (en) | 2014-08-12 | 2018-03-06 | Us Synthetic Corporation | Systems, methods and assemblies for processing superabrasive materials |
US9931732B2 (en) | 2004-09-21 | 2018-04-03 | Smith International, Inc. | Thermally stable diamond polycrystalline diamond constructions |
US10011000B1 (en) | 2014-10-10 | 2018-07-03 | Us Synthetic Corporation | Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials |
US10723626B1 (en) | 2015-05-31 | 2020-07-28 | Us Synthetic Corporation | Leached superabrasive elements and systems, methods and assemblies for processing superabrasive materials |
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US10900291B2 (en) | 2017-09-18 | 2021-01-26 | Us Synthetic Corporation | Polycrystalline diamond elements and systems and methods for fabricating the same |
US11766761B1 (en) | 2014-10-10 | 2023-09-26 | Us Synthetic Corporation | Group II metal salts in electrolytic leaching of superabrasive materials |
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US7395882B2 (en) | 2004-02-19 | 2008-07-08 | Baker Hughes Incorporated | Casing and liner drilling bits |
US7624818B2 (en) * | 2004-02-19 | 2009-12-01 | Baker Hughes Incorporated | Earth boring drill bits with casing component drill out capability and methods of use |
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 |
US7942218B2 (en) | 2005-06-09 | 2011-05-17 | Us Synthetic Corporation | Cutting element apparatuses and drill bits so equipped |
US7836978B2 (en) * | 2007-06-15 | 2010-11-23 | Baker Hughes Incorporated | Cutting elements for casing component drill out and subterranean drilling, earth boring drag bits and tools including same and methods of use |
US7954571B2 (en) | 2007-10-02 | 2011-06-07 | Baker Hughes Incorporated | Cutting structures for casing component drillout and earth-boring drill bits including same |
KR100942983B1 (ko) * | 2007-10-16 | 2010-02-17 | 주식회사 하이닉스반도체 | 반도체 소자 및 그 제조방법 |
US8789894B2 (en) * | 2009-01-13 | 2014-07-29 | Diamond Innovations, Inc. | Radial tool with superhard cutting surface |
US8887839B2 (en) | 2009-06-25 | 2014-11-18 | Baker Hughes Incorporated | Drill bit for use in drilling subterranean formations |
RU2012103934A (ru) * | 2009-07-08 | 2013-08-20 | Бейкер Хьюз Инкорпорейтед | Режущий элемент для бурового долота, используемого для бурения подземных пород |
RU2012103935A (ru) * | 2009-07-08 | 2013-08-20 | Бейкер Хьюз Инкорпорейтед | Режущий элемент и способ его формирования |
BR112012001906A2 (pt) | 2009-07-27 | 2016-03-15 | Baker Hughes Inc | artigo abrasivo e método de formação |
US20110073379A1 (en) * | 2009-09-25 | 2011-03-31 | Baker Hughes Incorporated | Cutting element and method of forming thereof |
CN102071877A (zh) * | 2010-12-30 | 2011-05-25 | 西南石油大学 | 一种聚晶金刚石复合片 |
US8807247B2 (en) | 2011-06-21 | 2014-08-19 | Baker Hughes Incorporated | Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and methods of forming such cutting elements for earth-boring tools |
US10316592B2 (en) | 2012-09-11 | 2019-06-11 | Halliburton Energy Services, Inc. | Cutter for use in well tools |
WO2016109116A1 (fr) * | 2014-12-31 | 2016-07-07 | Smith International, Inc. | Éléments de coupe et outils de forage les incorporant |
US20180355670A1 (en) * | 2017-06-08 | 2018-12-13 | Varel International Ind., L.L.C. | Hybrid roller-mill bit and hybrid roller-drag bit |
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EP0462955A1 (fr) * | 1990-06-15 | 1991-12-27 | Sandvik Aktiebolag | Outils perfectionnés pour le forage par coupage de roches |
US5979571A (en) * | 1996-09-27 | 1999-11-09 | Baker Hughes Incorporated | Combination milling tool and drill bit |
US20010035302A1 (en) * | 1998-03-13 | 2001-11-01 | Desai Praful C | Method for milling casing and drilling formation |
US20020074168A1 (en) * | 2000-09-20 | 2002-06-20 | Matthias Terry R. | Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength |
Family Cites Families (6)
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IE62468B1 (en) * | 1987-02-09 | 1995-02-08 | De Beers Ind Diamond | Abrasive product |
DE68919454T2 (de) * | 1988-08-15 | 1995-04-06 | De Beers Ind Diamond | Werkzeugeinsatz. |
IT1243302B (it) * | 1990-06-19 | 1994-05-26 | St Microelectronics Srl | Connessione universale multicontatto tra scheda portasonde ews e scheda di prova per una stazione di collaudo su fetta di dispositivi a semiconduttore. |
ZA935525B (en) * | 1992-08-06 | 1994-02-24 | De Beers Ind Diamond | Tool insert |
US6009963A (en) * | 1997-01-14 | 2000-01-04 | Baker Hughes Incorporated | Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency |
US6003623A (en) * | 1998-04-24 | 1999-12-21 | Dresser Industries, Inc. | Cutters and bits for terrestrial boring |
-
2003
- 2003-09-12 AT AT03809804T patent/ATE493559T1/de not_active IP Right Cessation
- 2003-09-12 AU AU2003259458A patent/AU2003259458A1/en not_active Abandoned
- 2003-09-12 DE DE60335568T patent/DE60335568D1/de not_active Expired - Lifetime
- 2003-09-12 WO PCT/IB2003/003892 patent/WO2004040095A1/fr not_active Application Discontinuation
- 2003-09-12 EP EP03809804A patent/EP1565642B1/fr not_active Expired - Lifetime
- 2003-09-12 US US10/533,046 patent/US20060144621A1/en not_active Abandoned
- 2003-09-12 CA CA2504518A patent/CA2504518C/fr not_active Expired - Fee Related
- 2003-09-12 CN CNB038256371A patent/CN100557188C/zh not_active Expired - Fee Related
-
2005
- 2005-05-11 ZA ZA200503785A patent/ZA200503785B/en unknown
Patent Citations (4)
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EP0462955A1 (fr) * | 1990-06-15 | 1991-12-27 | Sandvik Aktiebolag | Outils perfectionnés pour le forage par coupage de roches |
US5979571A (en) * | 1996-09-27 | 1999-11-09 | Baker Hughes Incorporated | Combination milling tool and drill bit |
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Also Published As
Publication number | Publication date |
---|---|
ZA200503785B (en) | 2006-08-30 |
CN1714225A (zh) | 2005-12-28 |
ATE493559T1 (de) | 2011-01-15 |
CA2504518A1 (fr) | 2004-05-13 |
DE60335568D1 (de) | 2011-02-10 |
US20060144621A1 (en) | 2006-07-06 |
EP1565642B1 (fr) | 2010-12-29 |
EP1565642A1 (fr) | 2005-08-24 |
CA2504518C (fr) | 2011-08-09 |
CN100557188C (zh) | 2009-11-04 |
AU2003259458A1 (en) | 2004-05-25 |
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