EP0157278A2 - Elément de coupe à plusieurs composants comportant des disques de diamant polycristallin - Google Patents

Elément de coupe à plusieurs composants comportant des disques de diamant polycristallin Download PDF

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Publication number
EP0157278A2
EP0157278A2 EP85103149A EP85103149A EP0157278A2 EP 0157278 A2 EP0157278 A2 EP 0157278A2 EP 85103149 A EP85103149 A EP 85103149A EP 85103149 A EP85103149 A EP 85103149A EP 0157278 A2 EP0157278 A2 EP 0157278A2
Authority
EP
European Patent Office
Prior art keywords
cutter
cutting
diamond
pcd
disks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP85103149A
Other languages
German (de)
English (en)
Other versions
EP0157278B1 (fr
EP0157278A3 (en
Inventor
Alexander K. Meskin
Clifford R. Pay
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Oilfield Operations LLC
Original Assignee
Christensen Inc
Norton Christensen Inc
Eastman Christensen Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Christensen Inc, Norton Christensen Inc, Eastman Christensen Co filed Critical Christensen Inc
Publication of EP0157278A2 publication Critical patent/EP0157278A2/fr
Publication of EP0157278A3 publication Critical patent/EP0157278A3/en
Application granted granted Critical
Publication of EP0157278B1 publication Critical patent/EP0157278B1/fr
Expired legal-status Critical Current

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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

Definitions

  • the present invention relates to the field of earth boring tools and in particular relates to diamond cutters used on rotary bits.
  • Rotating diamond drill bits were initially manufactured with natural diamonds of industrial quality.
  • the diamonds were square, round or of irregular shape and fully embedded in a metallic bit body, which was generally fabricated by powder metallurgical techniques.
  • the natural diamonds were of a small size ranging from various grades of grit to larger sizes where natural diamonds of 5 or 6 stones per carat were fully embedded in the metal matrix. Because of the small size of the natural diamonds, it was necessary to fully embed the diamonds within the matrix in order to retain them on the bit face under the tremendous pressures and forces to which a drill bit is subjected during rock drilling.
  • PCD polycrystalline diamond
  • prior art diamond synthesizers have developed a polycrystalline sintered diamond element from which the metallic interstitial components, typically cobalt, carbide and the like, have been leached or otherwise removed.
  • leached polycrystalline synthetic diamond is manufactured by the General Electric Company under the trademark GEOSET, for example 2102 GEOSETS, which are formed in the shape of an equilateral prismatic triangle 4 mm on a side and 2.6 mm deep (3 per carat), and as a 2103 GEOSET shaped in the form of an equilateral triangular prismatic element 6 mm on a side and 3.7 mm deep (1 per carat).
  • the diamond compact slug cutters STRATAP AX
  • the diamond compact slug cutters STRATAP AX
  • the leached triangular prismatic diamonds GEOSETS
  • the cutting rate of a diamond rotating bit is substantially improved by the size of the exposed diamond element available for useful cutting. Therefore, according to the prior art, the increased temperature stability of leached diamond products has been achieved only at the sacrifice of the size of the diamond elements and therefore the amount of diamond available in a bit design for useful cutting action.
  • PCD cutter which is characterised by the temperature stability and characteristics of leached diamond products, and yet has the size available for useful cutting action which is characterised by the larger unleached diamond products.
  • the invention is a cutter for use in a drill bit comprising a plurality of thermally stable PCD disks.
  • a cutting slug is formed of matrix material and the plurality of diamond disks are disposed in the cutting slug.
  • the matrix material also incorporates diamond grit in at least that portion of the cutting slug in the proximity where the diamond disks are exposed, namely the cutting face of the cutter.
  • the invention is a diamond cutter in a rotary bit comprising a plurality of circular leached PCD prefabricated synthetic disks each having at least one end surface.
  • a cutting slug is formed of matrix material and the plurality of PCD disks are disposed in the cutting slug.
  • the matrix material fills the interstitial spaces between the plurality of PCD disks.
  • the cutting slug is further characterised by having a cutting face wherein the one end surface of each of the PCD disks is fully exposed on the cutting face.
  • the matrix material, which forms the cutting slug further comprises and includes diamond grit which is incorporated at least in that portion of the cutting slug in the proximity of the cutting face.
  • the diamond grit is uniformly dispersed throughout the matrix material.
  • the invention is an enlarged diamond cutter comprised of a plurality of right circular cylindrical thermally stable or leached PCD disks arranged in array within a cutting slug or table.
  • the slug in turn is comprised of metallic powder which is infiltrated, molded or pressed about the array of PCD disks to form an amalgamated integral mass.
  • the multiple edges of the PC D disks tend to increase the total diamond cutting perimeter.
  • FIG. 1 a perspective view of a diamond table or cutting slug, generally denoted by reference numeral 10, is depicted.
  • Cutting slug 10 is comprised of an array of PCD elements 12.
  • elements 12 are right, circular cylindrical disks which are comprised of leached polycrystalline synthetic diamond formed in a diamond press.
  • Such material is of substantially the same composition as synthetic diamond made and sold by General Electric Company under the trademark GEOSET, or by variousmen of the Peoples of the People's Republic of China.
  • the diamond stock is sold in rod-like cylindrical shapes of approximately 0.07 inch (2.00 mm) to 0.394 inch (10.0 mm) in length and 0.078" to 0.315" (2mm to 8mm) in diameter. These rod-like shapes can then be sectioned to form cylindrical disk elements 12 to any desired thickness by laser-cutting, electrodischarge machining or other equivalent means.
  • disk diamond elements 12 are 0.157" (4mm) in diameter and 0.039" (lmm) thick.
  • Cutting slug 10 in the embodiment of Figure 1 has an overall geometric shape of a right circular cylindrical disk.
  • the thickness of cutting slug 10 is substantially equal to the thickness of diamond elements 12, although it could be increased or decreased if desired.
  • Diamond elements 12 are disposed in cutting the slug 10 in an array which may be compactly formed, wherein each diamond element 12 contacts or is immediately proximate to at least one adjacent diamond element.
  • PCD elements in the invention in a compact array may actually touch each other or may be separated by a thin layer of matrix material which tends to bond the adjacent elements togethher.
  • either situation or its equivalent shall be defined as an "immediately proximate" configuration.
  • the array of diamond elements 12 could be placed within cutting slug 10 in a spaced apart relationship so that no two adjacent elements contacted each other and the interstitial space between diamond elements 12 is completely filled by matrix material 14.
  • diamond coverage can be extended by using fractional portions of whole discs where appropriate.
  • Matrix material 14 is an amalgam of powdered metals well known to the art, principally comprised of tungsten carbide. Other elements and compounds may be added as well to effect the physical/chemical properties of matrix material 14 as required.
  • matrix material 14 also incorporates natural or synthetic diamond grit. Any mesh or grit size well known to the art may be used according to the required performance characteristics as determined by well known principles. In general, a grit size of 0.01 inch (0.00254 mm) to 0.05 (1,27 mm) inch in diameter is employed. A diamond grit incorporated or impregnated within matrix material 14 is disposed therein in a dispersion at least within that portion of matrix material 14 forming a layer near cutting face 16 of cutting slug 10. In the preferred embodiments, the grit is uniformly distributed throughout the volume of the matrix material at a concentration of 50% to 100% by volume.
  • Cutting face 16 is thus comprised of the exposed end faces 18 of each diamond element 12 and the interstitial exposed surface of diamond bearing matrix material 14.
  • diamond grit is substantially uniformly dispersed throughout the entire volume of matrix material 14 and not merely in the proximity of cutting face 16.
  • Cutting slug 10 of the embodiment of Figure 1- may be fabricated by conventional hot pressing or infiltration techniques.
  • a carbon mold in which a right circular cylindrical cavity is defined, is fabricated with movable end pieces or anvils.
  • powder metal in which the diamond grit is uniformly mixed is placed in the mold between diamond elements 12 and at least above or below the elements.
  • a greater depth of the diamond bearing matrix powder is loaded in the mold, than the thickness of diamond elements 12 in order to account for the higher compressability of the matrix powder as compared to synthetic polycrystalline diamonds 12.
  • Sealing anvils are then placed on the top or bottom or both ends of the cylindrical cavity of the filled carbon mold and the mold and anvils are then placed within a hot press.
  • the filled mold and its contents are then heated by a conventional induction heater _and subjected to pressure.
  • the pressure and temperature causes the matrix powder to amalgamate and compress to form the circular disk depicted as cutting slug 10 in Figure 1.
  • the pressures and temperatures used in the hot press are well outside the diamond synthesis phase regions and no appreciable amount of diamond is either synthesized or converted into graphite during the process.
  • a pressure of 200 psi is exerted upon the contents of the filled mold which is held at 1900° F for 3 minutes.
  • the result is a multi-component array of PCD elements 12 in a circular cylindrical disk 10 of approximately 0.512° (13mm) in diameter.
  • the same disk may be fabricated by conventional infiltration techniques wherein diamond elements 12 are again set within a carbon mold which is backfilled with matrix powder. The filled mold is then pressed and the powder allowed to settle and infiltrate to form an amalgamated sintered mass having the shape as defined by the mold.
  • Cutting slug 10 may be bonded by soldering or brazing to a steel or tungsten carbide stud 20 well known to the art. Stud 20 in turn is disposed within a drill bit body by press fitting, brazing or other well known methods. Cutting slug 10 in the illustrated embodiment is bonded to stud 20 by braze or solder forming a bonding layer 22 shown in exaggerated sectional view in Figure 2. Cutting face 16 is thus fully exposed and provides the useful cutting surface.
  • an enlarged cutting slug 10 of a size comparable or greater than presently available diamond compact cutters, such as STRATAPAX cutters, can be employed in conventional bit designs or in combination with conventional stud cutters as illustrated in Figure 2.
  • Figure 3 shows a side sectional view of cutting slug 10 as disposed within an infiltrated matrix body bit. Only the tooth portion of the matrix body is illustrated.
  • Cutting slug 10 is disposed in a carbon mold according to conventional infiltration techniques. Thereafter, the mold is filled with a metal matrix. The filled mold is then furnaced allowing the metallic powder to become sintered and infiltrate downward through the mold to form an integral mass. As illustrated in Figure 3, cutting slug 10 thus becomes bonded to the integral mass of the matrix body and is embedded therein according to the bit design and tooth structure defined within the mold.
  • cutting slug 10 is fully exposed above surface 24 of the bit and is provided with a trailing, integrally formed portion 26 to provide a backing and support for cutting slug 10.
  • Cutting face 16 thus is fully exposed and forms the forward moving surface of the composite tooth structure that is characterised by an overall size and geometric.shape heretofore characterised only by diamond compact stud cutters which could not be fabricated within an infiltration matrix bit because of their poor thermal stability.
  • a cutting slug is formed in the shape of a triagular table.
  • a plurality of synthetic PCD right circular disks 12 are disposed within cutting slug 28.
  • Diamond elements 12 are disposed in an array which may either be compactly formed or spaced-apart.
  • the interstitial space between and about diamond elements 12 within cutting slug 28 is comprised of a metallic diamond bearing matrix 14 described above.
  • diamond elements 12 have at least one circular end face exposed on cutting face 30 of cutting slug 28.
  • the thickness of slugs 28 may be substantially equal to the thickness of diamond elements 12.
  • cutting slug 28 may be formed by conventional hot press or infiltration techniques and then mounted on a stud in the manner as shown in connection with Figure 2 or directly disposed within an infiltrated matrix body bit as described in connection with Figure 3.
  • Figure 5 illustrates a third embodiment of the invention wherein a diamond table or cutting slug, generally denoted by a reference numeral 32, is formed in a rectangular or square shape.
  • the same circular diamond elements 12 as described above are disposed within cutting slug 32 in an array with the interstitial spaces between and around diamond elements 12 filled with a diamond bearing matrix material 14.
  • the embodiment of Figure 5 differs only from that of Figure 4 and Figure 1 by the overall gross geometric outline of the cutting slug and not by any detail of its constituents or mode of fabrication.
  • the cutting slug is fabricated using infiltration or hot press techniques and can then be mounted on a stud cutter in the manner briefly described in Figure 2 or directly in a matrix bit as suggested in Figure 3.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP85103149A 1984-03-26 1985-03-19 Elément de coupe à plusieurs composants comportant des disques de diamant polycristallin Expired EP0157278B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US59312384A 1984-03-26 1984-03-26
US593123 1984-03-26

Publications (3)

Publication Number Publication Date
EP0157278A2 true EP0157278A2 (fr) 1985-10-09
EP0157278A3 EP0157278A3 (en) 1986-06-11
EP0157278B1 EP0157278B1 (fr) 1989-11-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103149A Expired EP0157278B1 (fr) 1984-03-26 1985-03-19 Elément de coupe à plusieurs composants comportant des disques de diamant polycristallin

Country Status (5)

Country Link
EP (1) EP0157278B1 (fr)
JP (1) JPS60242291A (fr)
AU (1) AU3946885A (fr)
CA (1) CA1245624A (fr)
DE (1) DE3574043D1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2190412A (en) * 1986-05-16 1987-11-18 Nl Petroleum Prod Improvements in or relating to rotary drill bits
US4732364A (en) * 1984-12-17 1988-03-22 Ameron Iron Works USA, Inc. Wear resistant diamond cladding
US4796709A (en) * 1986-01-06 1989-01-10 Tri-State Oil Tool Industries, Inc. Milling tool for cutting well casing
US4830123A (en) * 1986-02-18 1989-05-16 Reed Tool Company Mounting means for cutting elements in drag type rotary drill bit
EP0350045A2 (fr) * 1988-07-06 1990-01-10 Baker Hughes Incorporated Trépan avec éléments de coupe composites
US4907662A (en) * 1986-02-18 1990-03-13 Reed Tool Company Rotary drill bit having improved mounting means for multiple cutting elements
GB2261894A (en) * 1991-11-30 1993-06-02 Camco Drilling Group Ltd Improvements in or relating to cutting elements for rotary drill bits
EP0604211A1 (fr) * 1992-12-23 1994-06-29 De Beers Industrial Diamond Division (Proprietary) Limited Outil composite pour trépan de forage
US5373900A (en) * 1988-04-15 1994-12-20 Baker Hughes Incorporated Downhole milling tool
WO2000036264A1 (fr) * 1998-12-15 2000-06-22 De Beers Industrial Diamond Division (Proprietary) Limited Element d'outil
GB2353810A (en) * 1999-09-03 2001-03-07 Camco Internat Polycrystalline diamond insert including carbonate as a sintering binder catalyst
GB2429471A (en) * 2005-02-08 2007-02-28 Smith International Thermally stable polycrystalline diamond cutting elements
WO2011046744A2 (fr) 2009-10-13 2011-04-21 Baker Hughes Incorporated Trépan hybride et procédé d'utilisation d'éléments coupants tsp ou en mosaïque sur trépan hybride
US8622154B2 (en) 2008-10-03 2014-01-07 Smith International, Inc. Diamond bonded construction with thermally stable region
US9657527B2 (en) 2010-06-29 2017-05-23 Baker Hughes Incorporated Drill bits with anti-tracking features
US9670736B2 (en) 2009-05-13 2017-06-06 Baker Hughes Incorporated Hybrid drill bit
US9782857B2 (en) 2011-02-11 2017-10-10 Baker Hughes Incorporated Hybrid drill bit having increased service life
US10557311B2 (en) 2015-07-17 2020-02-11 Halliburton Energy Services, Inc. Hybrid drill bit with counter-rotation cutters in center
US10871036B2 (en) 2007-11-16 2020-12-22 Baker Hughes, A Ge Company, Llc Hybrid drill bit and design method
US11428050B2 (en) 2014-10-20 2022-08-30 Baker Hughes Holdings Llc Reverse circulation hybrid bit

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU577958B2 (en) * 1985-08-22 1988-10-06 De Beers Industrial Diamond Division (Proprietary) Limited Abrasive compact
CA1331520C (fr) * 1987-10-12 1994-08-23 De Beers Industrial Diamond Division (Proprietary) Produits abrasifs
US7575805B2 (en) * 2003-12-11 2009-08-18 Roy Derrick Achilles Polycrystalline diamond abrasive elements
US7841426B2 (en) 2007-04-05 2010-11-30 Baker Hughes Incorporated Hybrid drill bit with fixed cutters as the sole cutting elements in the axial center of the drill bit
US7845435B2 (en) 2007-04-05 2010-12-07 Baker Hughes Incorporated Hybrid drill bit and method of drilling
US20090272582A1 (en) 2008-05-02 2009-11-05 Baker Hughes Incorporated Modular hybrid drill bit
US7819208B2 (en) 2008-07-25 2010-10-26 Baker Hughes Incorporated Dynamically stable hybrid drill bit
US8450637B2 (en) 2008-10-23 2013-05-28 Baker Hughes Incorporated Apparatus for automated application of hardfacing material to drill bits
US9439277B2 (en) 2008-10-23 2016-09-06 Baker Hughes Incorporated Robotically applied hardfacing with pre-heat
WO2010053710A2 (fr) 2008-10-29 2010-05-14 Baker Hughes Incorporated Procédé et appareil pour soudage robotique de trépans
US8047307B2 (en) 2008-12-19 2011-11-01 Baker Hughes Incorporated Hybrid drill bit with secondary backup cutters positioned with high side rake angles
BRPI0923809A2 (pt) 2008-12-31 2015-07-14 Baker Hughes Inc Método e aparelho para aplicação automatizada de material de revestimento duro em cortadores rolantes de brocas de perfuração de terra tipo híbridas, brocas híbridas compreendendo tais elementos de corte de dentes de aço com revestimento duro, e métodos de uso das mesmas
US8141664B2 (en) 2009-03-03 2012-03-27 Baker Hughes Incorporated Hybrid drill bit with high bearing pin angles
US8056651B2 (en) 2009-04-28 2011-11-15 Baker Hughes Incorporated Adaptive control concept for hybrid PDC/roller cone bits
US8157026B2 (en) 2009-06-18 2012-04-17 Baker Hughes Incorporated Hybrid bit with variable exposure
US9004198B2 (en) 2009-09-16 2015-04-14 Baker Hughes Incorporated External, divorced PDC bearing assemblies for hybrid drill bits
US8448724B2 (en) 2009-10-06 2013-05-28 Baker Hughes Incorporated Hole opener with hybrid reaming section
US8191635B2 (en) 2009-10-06 2012-06-05 Baker Hughes Incorporated Hole opener with hybrid reaming section
GB201000866D0 (en) * 2010-01-20 2010-03-10 Element Six Production Pty Ltd A superhard insert and an earth boring tool comprising same
US8978786B2 (en) 2010-11-04 2015-03-17 Baker Hughes Incorporated System and method for adjusting roller cone profile on hybrid bit
SG192650A1 (en) 2011-02-11 2013-09-30 Baker Hughes Inc System and method for leg retention on hybrid bits
MX351357B (es) 2011-11-15 2017-10-11 Baker Hughes Inc Barrenas de perforación híbridas que tienen eficiencia incrementada de perforación.
MX2016015278A (es) 2014-05-23 2017-03-03 Baker Hughes Inc Broca hibrida con elementos de cono de rodillo unidos mecanicamente.

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1522593A (en) * 1919-10-13 1925-01-13 Rowland O Pickin Rotary drilling tool
US3885637A (en) * 1973-01-03 1975-05-27 Vladimir Ivanovich Veprintsev Boring tools and method of manufacturing the same
US3902864A (en) * 1970-06-03 1975-09-02 Gen Dynamics Corp Composite material for making cutting and abrading tools
US4244432A (en) * 1978-06-08 1981-01-13 Christensen, Inc. Earth-boring drill bits
US4295885A (en) * 1975-12-24 1981-10-20 General Dynamics Corporation Material and method for securing boron filaments to each other and to a substrate and cutting tools therefrom
US4299297A (en) * 1979-06-06 1981-11-10 Lloyd Thomas C Rotary percussion bit
GB2081347A (en) * 1980-08-08 1982-02-17 Christensen Inc Drill tool for deep wells
US4452325A (en) * 1982-09-27 1984-06-05 Conoco Inc. Composite structure for cutting tools
EP0127077A2 (fr) * 1983-05-20 1984-12-05 Eastman Christensen Company Trépan de forage rotatif

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1522593A (en) * 1919-10-13 1925-01-13 Rowland O Pickin Rotary drilling tool
US3902864A (en) * 1970-06-03 1975-09-02 Gen Dynamics Corp Composite material for making cutting and abrading tools
US3885637A (en) * 1973-01-03 1975-05-27 Vladimir Ivanovich Veprintsev Boring tools and method of manufacturing the same
US4295885A (en) * 1975-12-24 1981-10-20 General Dynamics Corporation Material and method for securing boron filaments to each other and to a substrate and cutting tools therefrom
US4244432A (en) * 1978-06-08 1981-01-13 Christensen, Inc. Earth-boring drill bits
US4299297A (en) * 1979-06-06 1981-11-10 Lloyd Thomas C Rotary percussion bit
GB2081347A (en) * 1980-08-08 1982-02-17 Christensen Inc Drill tool for deep wells
US4452325A (en) * 1982-09-27 1984-06-05 Conoco Inc. Composite structure for cutting tools
EP0127077A2 (fr) * 1983-05-20 1984-12-05 Eastman Christensen Company Trépan de forage rotatif

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4732364A (en) * 1984-12-17 1988-03-22 Ameron Iron Works USA, Inc. Wear resistant diamond cladding
US4796709A (en) * 1986-01-06 1989-01-10 Tri-State Oil Tool Industries, Inc. Milling tool for cutting well casing
US4830123A (en) * 1986-02-18 1989-05-16 Reed Tool Company Mounting means for cutting elements in drag type rotary drill bit
US4907662A (en) * 1986-02-18 1990-03-13 Reed Tool Company Rotary drill bit having improved mounting means for multiple cutting elements
GB2190412A (en) * 1986-05-16 1987-11-18 Nl Petroleum Prod Improvements in or relating to rotary drill bits
EP0246789A2 (fr) * 1986-05-16 1987-11-25 Nl Petroleum Products Limited Elément de coupe pour un trépan rotatif, trépan rotatif avec un tel élément, et procédé de fabrication de cet élément
EP0246789A3 (fr) * 1986-05-16 1988-12-14 Nl Petroleum Products Limited Elément de coupe pour un trépan rotatif, trépan rotatif avec un tel élément, et procédé de fabrication de cet élément
US5373900A (en) * 1988-04-15 1994-12-20 Baker Hughes Incorporated Downhole milling tool
EP0350045A3 (en) * 1988-07-06 1990-06-06 Eastman Christensen Company Drill bit with composite cutting members
EP0350045A2 (fr) * 1988-07-06 1990-01-10 Baker Hughes Incorporated Trépan avec éléments de coupe composites
GB2261894A (en) * 1991-11-30 1993-06-02 Camco Drilling Group Ltd Improvements in or relating to cutting elements for rotary drill bits
GB2261894B (en) * 1991-11-30 1995-07-05 Camco Drilling Group Ltd Improvements in or relating to cutting elements for rotary drill bits
EP0604211A1 (fr) * 1992-12-23 1994-06-29 De Beers Industrial Diamond Division (Proprietary) Limited Outil composite pour trépan de forage
AU670642B2 (en) * 1992-12-23 1996-07-25 De Beers Industrial Diamond Division (Proprietary) Limited Tool component
WO2000036264A1 (fr) * 1998-12-15 2000-06-22 De Beers Industrial Diamond Division (Proprietary) Limited Element d'outil
GB2353810A (en) * 1999-09-03 2001-03-07 Camco Internat Polycrystalline diamond insert including carbonate as a sintering binder catalyst
US6248447B1 (en) 1999-09-03 2001-06-19 Camco International (Uk) Limited Cutting elements and methods of manufacture thereof
GB2353810B (en) * 1999-09-03 2003-10-08 Camco Internat Cutting elements and methods of manufacture thereof
GB2429471A (en) * 2005-02-08 2007-02-28 Smith International Thermally stable polycrystalline diamond cutting elements
US8567534B2 (en) 2005-02-08 2013-10-29 Smith International, Inc. Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
GB2438319B (en) * 2005-02-08 2009-03-04 Smith International Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
US7533740B2 (en) 2005-02-08 2009-05-19 Smith International Inc. Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
GB2429471B (en) * 2005-02-08 2009-07-01 Smith International Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
US7836981B2 (en) 2005-02-08 2010-11-23 Smith International, Inc. Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
GB2438319A (en) * 2005-02-08 2007-11-21 Smith International Thermally stable polycrystalline diamond cutting elements
US7946363B2 (en) 2005-02-08 2011-05-24 Smith International, Inc. Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
US8157029B2 (en) 2005-02-08 2012-04-17 Smith International, Inc. Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
US10871036B2 (en) 2007-11-16 2020-12-22 Baker Hughes, A Ge Company, Llc Hybrid drill bit and design method
US8622154B2 (en) 2008-10-03 2014-01-07 Smith International, Inc. Diamond bonded construction with thermally stable region
US9404309B2 (en) 2008-10-03 2016-08-02 Smith International, Inc. Diamond bonded construction with thermally stable region
US9670736B2 (en) 2009-05-13 2017-06-06 Baker Hughes Incorporated Hybrid drill bit
WO2011046744A2 (fr) 2009-10-13 2011-04-21 Baker Hughes Incorporated Trépan hybride et procédé d'utilisation d'éléments coupants tsp ou en mosaïque sur trépan hybride
US9657527B2 (en) 2010-06-29 2017-05-23 Baker Hughes Incorporated Drill bits with anti-tracking features
US9782857B2 (en) 2011-02-11 2017-10-10 Baker Hughes Incorporated Hybrid drill bit having increased service life
US11428050B2 (en) 2014-10-20 2022-08-30 Baker Hughes Holdings Llc Reverse circulation hybrid bit
US10557311B2 (en) 2015-07-17 2020-02-11 Halliburton Energy Services, Inc. Hybrid drill bit with counter-rotation cutters in center

Also Published As

Publication number Publication date
JPS60242291A (ja) 1985-12-02
CA1245624A (fr) 1988-11-29
EP0157278B1 (fr) 1989-11-02
AU3946885A (en) 1985-10-03
DE3574043D1 (en) 1989-12-07
EP0157278A3 (en) 1986-06-11

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