US20020033077A1 - Rotary drill bit design method - Google Patents

Rotary drill bit design method Download PDF

Info

Publication number
US20020033077A1
US20020033077A1 US09682466 US68246601A US2002033077A1 US 20020033077 A1 US20020033077 A1 US 20020033077A1 US 09682466 US09682466 US 09682466 US 68246601 A US68246601 A US 68246601A US 2002033077 A1 US2002033077 A1 US 2002033077A1
Authority
US
Grant status
Application
Patent type
Prior art keywords
cutters
cutter
bit
wear
type
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
US09682466
Other versions
US6435058B1 (en )
Inventor
Nigel Griffin
Peter Hughes
Terry Matthias
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.)
ReedHycalog UK Ltd
Original Assignee
Griffin Nigel Dennis
Hughes Peter Raymond
Matthias Terry R.
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
Family has litigation

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F7/00Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64Burning or sintering processes
    • C04B35/645Pressure sintering
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B37/00Joining burned ceramic articles with other burned ceramic articles or other articles by heating
    • C04B37/02Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
    • C04B37/021Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles in a direct manner, e.g. direct copper bonding [DCB]
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56Button type inserts
    • E21B10/567Button type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F3/00Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24After-treatment of workpieces or articles
    • B22F2003/241Chemical after-treatment on the surface
    • B22F2003/244Leaching
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F5/00Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001Cutting tools, earth boring or grinding tool other than table ware
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F2998/00Supplementary information concerning processes or compositions relating to powder metallurgy
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22FWORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER
    • B22F2999/00Aspects linked to processes or compositions used in powder metallurgy
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3206Magnesium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3208Calcium oxide or oxide-forming salts thereof, e.g. lime
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3213Strontium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3205Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
    • C04B2235/3215Barium oxides or oxide-forming salts thereof
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/40Metallic constituents or additives not added as binding phase
    • C04B2235/405Iron group metals
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/42Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422Carbon
    • C04B2235/427Diamond
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/44Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
    • C04B2235/442Carbonates
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/32Ceramic
    • C04B2237/36Non-oxidic
    • C04B2237/363Carbon
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2237/00Aspects relating to ceramic laminates or to joining of ceramic articles with other articles by heating
    • C04B2237/30Composition of layers of ceramic laminates or of ceramic or metallic articles to be joined by heating, e.g. Si substrates
    • C04B2237/40Metallic
    • C04B2237/401Cermets
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2206/00Materials with ceramics, cermets, hard carbon or similar non-metallic hard materials as main constituents
    • F16C2206/02Carbon based material
    • F16C2206/04Diamond like carbon [DLC]
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C33/00Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/02Parts of sliding-contact bearings
    • F16C33/04Brasses; Bushes; Linings
    • F16C33/043Sliding surface consisting mainly of ceramics, cermets or hard carbon, e.g. diamond like carbon [DLC]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00Cutters, for shaping
    • Y10T407/27Cutters, for shaping comprising tool of specific chemical composition
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/12All metal or with adjacent metals
    • Y10T428/12493Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.]
    • Y10T428/12535Composite; i.e., plural, adjacent, spatially distinct metal components [e.g., layers, joint, etc.] with additional, spatially distinct nonmetal component
    • Y10T428/12625Free carbon containing component
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24942Structurally defined web or sheet [e.g., overall dimension, etc.] including components having same physical characteristic in differing degree
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/26Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/26Web or sheet containing structurally defined element or component, the element or component having a specified physical dimension
    • Y10T428/263Coating layer not in excess of 5 mils thick or equivalent
    • Y10T428/264Up to 3 mils
    • Y10T428/2651 mil or less
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/30Self-sustaining carbon mass or layer with impregnant or other layer

Abstract

A method for use in designing rotary drill bits comprises determining locations in which cutters are to be provided, determining likely wear rates for cutters positioned at those locations, and using the likely wear rates to chose between relatively high and relatively low wear rate cutters for each location. The cutters all have substantially the same impact toughness.

Description

    CROSS REFERENCE TO RELATED APPLICATIONS
  • [0001]
    This application claims priority from U.S. Provisional Patent Application No. 60/234,075 filed Sep. 20, 2000, and from U.S. Provisional Patent Application No. 60/281,054 filed Apr. 2, 2001.
  • BACKGROUND OF INVENTION
  • [0002]
    1. Field of the Invention
  • [0003]
    This invention relates to a method of designing a fixed cutter rotary drill bit for use in the drilling of wellbores.
  • [0004]
    2. Description of the Related Art
  • [0005]
    It is known that certain parts of a fixed cutter rotary drill bit wear at a faster rate than other parts thereof. Such variations in wear have been countered, in the past, by providing the drill bit with additional cutters in the high wear areas thereof. In the past, drill bit designs were compromised because cutters having high abrasion resistance had low impact toughness and cutters having high impact toughness had low abrasion resistance. As a result of this trade-off such placement of the cutters may improve the abrasion resistance of the drill bit, but it is likely that the overall drilling efficiency is not optimized due to relatively poor impact toughness.
  • [0006]
    It is an object of the invention to provide a drill bit whereby the operating efficiency of the bit can be maintained whilst providing a bit having a desired wear profile, and to provide a method for designing such a drill bit and provide high abrasion resistance while maintaining impact toughness.
  • SUMMARY OF INVENTION
  • [0007]
    According to the present invention there is provided a method for designing a fixed cutter drill bit comprising determining a layout of cutter locations in which cutters are to be positioned upon a bit body, determining the likely wear rate for at least the cutters provided in some of the cutter locations and using the determined likely wear rates to determine whether to mount a cutter of a first type of relatively low abrasion resistance or a cutter of a second type of a relatively high abrasion resistance in each cutter location. The impact toughness of all the cutters is substantially the same.
  • [0008]
    The method of the invention is advantageous in that the positions of the cutter locations can be optimized whilst achieving an acceptable overall wear rate for the bit.
  • [0009]
    The cutters of the second type conveniently each comprise a table of polycrystalline diamond bonded to a substrate, the table of polycrystalline diamond defining a matrix of interstices containing a catalyzing material, the interstices of the matrix located within a volume close to a working surface of the cutter being substantially free of catalysing material. The volume preferably extends to a depth of at least around 0.25 mm from the working surface.
  • [0010]
    According to another aspect of the invention there is provided a method of designing a fixed cutter drill bit comprising determining a layout of cutter locations in which cutters are to be positioned upon a bit body, determining a likely wear rate for at least the cutters provided at some of the cutter locations, selecting a desired wear profile for the bit, and using the determined likely wear rates to determine the abrasion resistance of the cutter to be mounted at each cutter location to achieve the desired wear profile.
  • [0011]
    The invention also relates to a fixed cutter drill bit designed in accordance with the methods defined hereinbefore.
  • BRIEF DESCRIPTION OF DRAWINGS
  • [0012]
    The invention will further be described, by way of example, with reference to the accompanying drawings.
  • [0013]
    [0013]FIG. 1 is a perspective view of a drill bit designed in accordance with an embodiment of the invention.
  • [0014]
    [0014]FIG. 2 is a diagrammatic sectional view of a cutter of the drill bit of FIG. 1.
  • [0015]
    [0015]FIG. 3 is a diagrammatic view illustrating the structure of part of the cutters of FIG. 2.
  • [0016]
    FIGS. 4 to 7 are diagrammatic representations of wear profiles.
  • [0017]
    [0017]FIGS. 8 and 9 are diagrammatic views of two further drill bits.
  • DETAILED DESCRIPTION
  • [0018]
    The fixed cutter drill bit illustrated in FIG. 1 comprises a bit body 10 having a leading face 12 and a shank 14 to permit the drill bit to be secured to the remainder of a drill string. The bit body 10 is intended to be rotated, in use, about an axis of rotation 16.
  • [0019]
    Upstanding from the leading face 12 are a plurality of blades 18 upon which a plurality of cutters 20 are mounted. As shown in FIG. 2, each cutter 20 comprises a table 22 of polycrystalline diamond bonded to a tungsten carbide substrate 24. Each cutter 20 is manufactured using a known technique involving exposing diamond powder, a catalyst material and a tungsten carbide substrate to high temperature, high pressure conditions to cause the diamond powder to undergo a structural change, becoming polycrystalline diamond, and to cause the polycrystalline diamond to bond to the substrate.
  • [0020]
    It has been found that where the catalyzing material used in the manufacture of the cutters is cobalt, removal of the catalyst material from a part of the cutter close to a working surface thereof results in the abrasion resistance of the cutter improving. FIG. 3 illustrates part of a cutter so treated. In FIG. 3, the polycrystalline diamond 26 defines a matrix of interstices 28 containing the catalyzing material used in the formation of the polycrystalline diamond and used in the bonding of the polycrystalline diamond to the substrate. The interstices 28 located within a volume 34 close to a working surface 32 of the diamond 26 have been rendered substantially free of catalyzing material 30 by leaching the catalyzing material 30 from the volume 34. In the arrangement of FIG. 3, the volume 34 extends over the full cross-sectional area of the polycrystalline diamond, and extends to a depth D of approximately 0.25 mm from the working surface 32.
  • [0021]
    Although leaching is the currently preferred technique for rendering the interstices free of catalyzing material, other techniques may be used. For example, the catalyzing material may be forced to undergo a structural change to take an alternative form which does not have a catalyzing effect, or may be chemically reacted to form a substance which does not have a catalyzing effect.
  • [0022]
    In accordance with the invention, a layout or arrangement of cutter locations in which the cutters 20 are to be mounted on the bit body 10 is chosen, and the likely wear rate to which each of the cutters 20 is to be exposed is determined. The likely wear rate for each location may be determined using, for example, a computer modelling technique, or alternatively may be derived from measurements taken from a similar, used drill bit. Using the determined likely wear rate information, either a cutter 20 a of a first type of a relatively low abrasion resistance, or a cutter 20 b of a second type having a relatively high abrasion resistance manufactured as described hereinbefore is chosen for each cutter location in order to achieve a desired wear profile.
  • [0023]
    FIGS. 4 to 7 illustrate a range of possible profiles. In each drawing, the full line 36 denotes the profile that would be achieved if all cutter locations were occupied by cutters 20 a of the first type. In FIGS. 4 and 5, the broken line 38 illustrates the modification to the wear profile achieved by using cutters 20 b of the second type rather than cutters 20 a of the first type in a region 40 of the bit.
  • [0024]
    [0024]FIG. 6 illustrates an arrangement which makes use of cutters of a third type of higher abrasion resistance than the cutters 20 b of the second type. These cutters are similar to the cutters 20 b of the second type but are treated to remove the catalyst material to a greater depth, for example to a depth of 0.5 mm, from the working surface. In FIG. 6, the cutters 20 b of the second type are located in regions 40 and the cutters of the third type are location in a region 42.
  • [0025]
    In the profiles of FIGS. 4 to 6, the use of cutters 20 b of the second type, and in FIG. 6 the use of cutters of the third type, serves to flatten the profile, increasing the uniformity with which the cutters on the bit wear, thereby permitting the working life of the bit to be increased. FIG. 7 illustrates an alternative profile for a bit where the region which conventionally would have the highest wear rate has a lower wear rate than the remainder of the bit. It is thought that this may be beneficial in providing bits of good stability, directional control, and rate of progress.
  • [0026]
    In the hereinbefore described manufacturing process for improving wear resistance, as the wear resistance of a cutter improves, its ability to withstand impacts is substantially retained. However, because a thin wear-resistance lip is often desirously formed at the cutting edge cutters of the second and third types, they may be more suitably used in in cutter locations which are protected against impact. This is because the lip, which is believed to increase drilling efficiency, may become chipped during impact. FIGS. 8 and 9 illustrate, diagrammatically, two rotary drill bits of the type having a plurality of primary cutters and a plurality of secondary cutters, the secondary cutters being protected, at least to some extend, against chippage of the lip by the presence of the primary cutters.
  • [0027]
    In FIG. 8, the drill bit 44 defines a plurality of blades 46, each blade 46 having mounted thereon a plurality of cutters 20. The cutters 20 are arranged in two rows 48, 50 on each blade 46. The first row 48 comprises a row of primary cutters 20 a of the first type. The second row 50 comprises secondary cutters 20 b of the second type. The secondary cutters are each provided immediately behind an associated primary cutter, and so are protected by the primary cutters from impacts.
  • [0028]
    The arrangement of FIG. 9 differs from that of FIG. 8 in that the secondary cutters are mounted upon separate blades from the primary cutters.
  • [0029]
    It will be appreciated that, in order to provide a bit of good abrasion resistance and good impact resistance, it may in some circumstances be desirable to position some cutters of the first type within the regions 40, 42 of FIGS. 4 to 7 to protect the cutters of the second type from lip chippage.
  • [0030]
    Although specific embodiments of the invention have been described hereinbefore, it will be appreciated that various changes may be made without departing from the scope of the appended claims. The present invention has also been described in particular relation to the drawings attached hereto, it should be understood that other and further modifications apart from those shown or suggested herein, may be made within the scope and spirit of the present invention.

Claims (7)

    What is claimed is:
  1. 1. A method for designing a fixed cutter drill bit comprising determining a layout of cutter locations in which cutters are to be positioned upon a bit body, determining the likely wear rate for at least the cutters provided in some of the cutter locations and using the determined likely wear rates to determine whether to mount a cutter of a first type of relatively low abrasion resistance or a cutter of a second type of a relatively high abrasion resistance in each cutter location, wherein the first type of cutters has substantially the same impact toughness as the second type of cutters.
  2. 2. A method according to claim 1, wherein the cutters of the second type each comprise a table of polycrystalline diamond bonded to a substrate, the table of polycrystalline diamond defining a matrix of interstices containing a catalysing material, the interstices of the matrix located within a volume close to a working surface of the cutter being substantially free of catalysing material.
  3. 3. A method according to claim 2, wherein the volume close to the working surface extends to a depth of at least about 0.25 mm from the working surface.
  4. 4. A method according to claim 3, wherein the volume close to the working surface extends to a depth of at least about 0.5 mm from the working surface.
  5. 5. A method of designing a fixed cutter drill bit comprising determining a layout of cutter locations in which cutters are to be positioned upon a bit body, determining a likely wear rate for at least the cutters provided at some of the cutter locations, selecting a desired wear profile for the bit, and using the determined likely wear rates to determine the abrasion resistance of the cutter to be mounted at each cutter location to achieve the desired wear profile, wherein all the cutters have substantially the same impact toughness.
  6. 6. A method according to claim 5, wherein the desired wear profile is of generally flat form.
  7. 7. A method according to claim 5, wherein the desired wear profile includes a region of relatively low wear rate bounded by regions of higher wear rates.
US09682466 2000-09-20 2001-09-06 Rotary drill bit design method Active US6435058B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US23407500 true 2000-09-20 2000-09-20
US28105401 true 2001-04-02 2001-04-02
US09682466 US6435058B1 (en) 2000-09-20 2001-09-06 Rotary drill bit design method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09682466 US6435058B1 (en) 2000-09-20 2001-09-06 Rotary drill bit design method

Publications (2)

Publication Number Publication Date
US20020033077A1 true true US20020033077A1 (en) 2002-03-21
US6435058B1 US6435058B1 (en) 2002-08-20

Family

ID=26927534

Family Applications (4)

Application Number Title Priority Date Filing Date
US09682425 Active US6410085B1 (en) 2000-09-20 2001-08-31 Method of machining of polycrystalline diamond
US09947678 Active US6601662B2 (en) 2000-09-20 2001-09-06 Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength
US09682471 Active US6481511B2 (en) 2000-09-20 2001-09-06 Rotary drill bit
US09682466 Active US6435058B1 (en) 2000-09-20 2001-09-06 Rotary drill bit design method

Family Applications Before (3)

Application Number Title Priority Date Filing Date
US09682425 Active US6410085B1 (en) 2000-09-20 2001-08-31 Method of machining of polycrystalline diamond
US09947678 Active US6601662B2 (en) 2000-09-20 2001-09-06 Polycrystalline diamond cutters with working surfaces having varied wear resistance while maintaining impact strength
US09682471 Active US6481511B2 (en) 2000-09-20 2001-09-06 Rotary drill bit

Country Status (3)

Country Link
US (4) US6410085B1 (en)
CA (1) CA2865443A1 (en)
DE (2) DE60140617D1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070240905A1 (en) * 2006-04-18 2007-10-18 Varel International, Ltd. Drill bit with multiple cutter geometries

Families Citing this family (235)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3555844B2 (en) 1999-04-09 2004-08-18 三宅 正二郎 Sliding member and its manufacturing method
US8589124B2 (en) * 2000-08-09 2013-11-19 Smith International, Inc. Methods for modeling wear of fixed cutter bits and for designing and optimizing fixed cutter bits
US20050273304A1 (en) * 2000-03-13 2005-12-08 Smith International, Inc. Methods for evaluating and improving drilling operations
US7693695B2 (en) * 2000-03-13 2010-04-06 Smith International, Inc. Methods for modeling, displaying, designing, and optimizing fixed cutter bits
US6592985B2 (en) * 2000-09-20 2003-07-15 Camco International (Uk) Limited Polycrystalline diamond partially depleted of catalyzing material
US7020597B2 (en) * 2000-10-11 2006-03-28 Smith International, Inc. Methods for evaluating and improving drilling operations
US6785641B1 (en) * 2000-10-11 2004-08-31 Smith International, Inc. Simulating the dynamic response of a drilling tool assembly and its application to drilling tool assembly design optimization and drilling performance optimization
US9482055B2 (en) * 2000-10-11 2016-11-01 Smith International, Inc. Methods for modeling, designing, and optimizing the performance of drilling tool assemblies
US6536543B2 (en) * 2000-12-06 2003-03-25 Baker Hughes Incorporated Rotary drill bits exhibiting sequences of substantially continuously variable cutter backrake angles
US7261753B2 (en) * 2002-07-26 2007-08-28 Mitsubishi Materials Corporation Bonding structure and bonding method for cemented carbide element and diamond element, cutting tip and cutting element for drilling tool, and drilling tool
US20040062928A1 (en) * 2002-10-01 2004-04-01 General Electric Company Method for producing a sintered, supported polycrystalline diamond compact
EP1579103B1 (en) 2002-10-30 2010-12-15 Element Six (Pty) Ltd Composite tool insert
WO2004040095A1 (en) * 2002-10-30 2004-05-13 Element Six (Proprietary) Limited Tool insert
US6969198B2 (en) 2002-11-06 2005-11-29 Nissan Motor Co., Ltd. Low-friction sliding mechanism
US20060011388A1 (en) * 2003-01-31 2006-01-19 Mohammed Boudrare Drill bit and cutter element having multiple extensions
US6883624B2 (en) 2003-01-31 2005-04-26 Smith International, Inc. Multi-lobed cutter element for drill bit
US6929079B2 (en) * 2003-02-21 2005-08-16 Smith International, Inc. Drill bit cutter element having multiple cusps
JP5208419B2 (en) * 2003-05-27 2013-06-12 エレメント シックス (ピーティーワイ) リミテッド Abrasive elements of polycrystalline diamond
US7844426B2 (en) * 2003-07-09 2010-11-30 Smith International, Inc. Methods for designing fixed cutter bits and bits made using such methods
JP4863152B2 (en) 2003-07-31 2012-01-25 日産自動車株式会社 gear
EP1666573A4 (en) 2003-08-06 2008-10-22 Nissan Motor Low-friction sliding mechanism, low-friction agent composition and method of friction reduction
JP4973971B2 (en) 2003-08-08 2012-07-11 日産自動車株式会社 The sliding member
US7771821B2 (en) 2003-08-21 2010-08-10 Nissan Motor Co., Ltd. Low-friction sliding member and low-friction sliding mechanism using same
EP1508611A3 (en) * 2003-08-22 2005-11-30 Nissan Motor Company, Limited Low-friction sliding member in transmission, and transmission oil therefor
US7152701B2 (en) * 2003-08-29 2006-12-26 Smith International, Inc. Cutting element structure for roller cone bit
US20050050801A1 (en) * 2003-09-05 2005-03-10 Cho Hyun Sam Doubled-sided and multi-layered PCD and PCBN abrasive articles
US20050210755A1 (en) * 2003-09-05 2005-09-29 Cho Hyun S Doubled-sided and multi-layered PCBN and PCD abrasive articles
US7303030B2 (en) * 2003-11-25 2007-12-04 Smith International, Inc. Barrier coated granules for improved hardfacing material
GB2408735B (en) * 2003-12-05 2009-01-28 Smith International Thermally-stable polycrystalline diamond materials and compacts
US7395882B2 (en) * 2004-02-19 2008-07-08 Baker Hughes Incorporated Casing and liner drilling bits
US7647993B2 (en) * 2004-05-06 2010-01-19 Smith International, Inc. Thermally stable diamond bonded materials and compacts
JP4903134B2 (en) * 2004-05-12 2012-03-28 エレメント シックス (プロプライエタリイ)リミテッド Cutting tool insert
US7608333B2 (en) 2004-09-21 2009-10-27 Smith International, Inc. Thermally stable diamond polycrystalline diamond constructions
US7754333B2 (en) * 2004-09-21 2010-07-13 Smith International, Inc. Thermally stable diamond polycrystalline diamond constructions
GB0423597D0 (en) * 2004-10-23 2004-11-24 Reedhycalog Uk Ltd Dual-edge working surfaces for polycrystalline diamond cutting elements
US8448725B2 (en) * 2004-12-10 2013-05-28 Smith International, Inc. Impact resistant PDC drill bit
US7681669B2 (en) 2005-01-17 2010-03-23 Us Synthetic Corporation Polycrystalline diamond insert, drill bit including same, and method of operation
US20060167668A1 (en) * 2005-01-24 2006-07-27 Smith International, Inc. PDC drill bit with cutter design optimized with dynamic centerline analysis and having dynamic center line trajectory
US7441612B2 (en) * 2005-01-24 2008-10-28 Smith International, Inc. PDC drill bit using optimized side rake angle
US20060162968A1 (en) * 2005-01-24 2006-07-27 Smith International, Inc. PDC drill bit using optimized side rake distribution that minimized vibration and deviation
US7350601B2 (en) * 2005-01-25 2008-04-01 Smith International, Inc. Cutting elements formed from ultra hard materials having an enhanced construction
US8197936B2 (en) 2005-01-27 2012-06-12 Smith International, Inc. Cutting structures
US7497280B2 (en) * 2005-01-27 2009-03-03 Baker Hughes Incorporated Abrasive-impregnated cutting structure having anisotropic wear resistance and drag bit including same
GB2438319B (en) 2005-02-08 2009-03-04 Smith International Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
GB2427633B (en) * 2005-05-17 2007-08-15 Smith International Drill bit and method of designing a drill bit
US7377341B2 (en) 2005-05-26 2008-05-27 Smith International, Inc. Thermally stable ultra-hard material compact construction
US7493973B2 (en) 2005-05-26 2009-02-24 Smith International, Inc. Polycrystalline diamond materials having improved abrasion resistance, thermal stability and impact resistance
US7757789B2 (en) * 2005-06-21 2010-07-20 Smith International, Inc. Drill bit and insert having bladed interface between substrate and coating
US8789627B1 (en) 2005-07-17 2014-07-29 Us Synthetic Corporation Polycrystalline diamond cutter with improved abrasion and impact resistance and method of making the same
US7462003B2 (en) * 2005-08-03 2008-12-09 Smith International, Inc. Polycrystalline diamond composite constructions comprising thermally stable diamond volume
US8734552B1 (en) 2005-08-24 2014-05-27 Us Synthetic Corporation Methods of fabricating polycrystalline diamond and polycrystalline diamond compacts with a carbonate material
US7635035B1 (en) 2005-08-24 2009-12-22 Us Synthetic Corporation Polycrystalline diamond compact (PDC) cutting element having multiple catalytic elements
US9103172B1 (en) 2005-08-24 2015-08-11 Us Synthetic Corporation Polycrystalline diamond compact including a pre-sintered polycrystalline diamond table including a nonmetallic catalyst that limits infiltration of a metallic-catalyst infiltrant therein and applications therefor
US8020643B2 (en) * 2005-09-13 2011-09-20 Smith International, Inc. Ultra-hard constructions with enhanced second phase
US7726421B2 (en) 2005-10-12 2010-06-01 Smith International, Inc. Diamond-bonded bodies and compacts with improved thermal stability and mechanical strength
GB0521693D0 (en) * 2005-10-25 2005-11-30 Reedhycalog Uk Ltd Representation of whirl in fixed cutter drill bits
US7571780B2 (en) 2006-03-24 2009-08-11 Hall David R Jack element for a drill bit
US8297378B2 (en) 2005-11-21 2012-10-30 Schlumberger Technology Corporation Turbine driven hammer that oscillates at a constant frequency
US8360174B2 (en) 2006-03-23 2013-01-29 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US8528664B2 (en) 2005-11-21 2013-09-10 Schlumberger Technology Corporation Downhole mechanism
US8225883B2 (en) 2005-11-21 2012-07-24 Schlumberger Technology Corporation Downhole percussive tool with alternating pressure differentials
US8522897B2 (en) 2005-11-21 2013-09-03 Schlumberger Technology Corporation Lead the bit rotary steerable tool
US20070169419A1 (en) * 2006-01-26 2007-07-26 Ulterra Drilling Technologies, Inc. Sonochemical leaching of polycrystalline diamond
US7506698B2 (en) * 2006-01-30 2009-03-24 Smith International, Inc. Cutting elements and bits incorporating the same
US7628234B2 (en) 2006-02-09 2009-12-08 Smith International, Inc. Thermally stable ultra-hard polycrystalline materials and compacts
US8162723B2 (en) * 2006-03-09 2012-04-24 Cabot Microelectronics Corporation Method of polishing a tungsten carbide surface
US7493965B1 (en) 2006-04-12 2009-02-24 Us Synthetic Corporation Apparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use
US8066087B2 (en) 2006-05-09 2011-11-29 Smith International, Inc. Thermally stable ultra-hard material compact constructions
US8328891B2 (en) * 2006-05-09 2012-12-11 Smith International, Inc. Methods of forming thermally stable polycrystalline diamond cutters
US20070261890A1 (en) * 2006-05-10 2007-11-15 Smith International, Inc. Fixed Cutter Bit With Centrally Positioned Backup Cutter Elements
US8033615B2 (en) 2006-08-11 2011-10-11 Schlumberger Technology Corporation Retention system
US8007051B2 (en) * 2006-08-11 2011-08-30 Schlumberger Technology Corporation Shank assembly
US7669674B2 (en) * 2006-08-11 2010-03-02 Hall David R Degradation assembly
US8567532B2 (en) * 2006-08-11 2013-10-29 Schlumberger Technology Corporation Cutting element attached to downhole fixed bladed bit at a positive rake angle
US7637574B2 (en) 2006-08-11 2009-12-29 Hall David R Pick assembly
US9051795B2 (en) 2006-08-11 2015-06-09 Schlumberger Technology Corporation Downhole drill bit
US7871133B2 (en) 2006-08-11 2011-01-18 Schlumberger Technology Corporation Locking fixture
US8201892B2 (en) 2006-08-11 2012-06-19 Hall David R Holder assembly
US8414085B2 (en) * 2006-08-11 2013-04-09 Schlumberger Technology Corporation Shank assembly with a tensioned element
US7946657B2 (en) 2006-08-11 2011-05-24 Schlumberger Technology Corporation Retention for an insert
US8622155B2 (en) 2006-08-11 2014-01-07 Schlumberger Technology Corporation Pointed diamond working ends on a shear bit
US8714285B2 (en) * 2006-08-11 2014-05-06 Schlumberger Technology Corporation Method for drilling with a fixed bladed bit
US9145742B2 (en) 2006-08-11 2015-09-29 Schlumberger Technology Corporation Pointed working ends on a drill bit
US8590644B2 (en) 2006-08-11 2013-11-26 Schlumberger Technology Corporation Downhole drill bit
US7866419B2 (en) * 2006-07-19 2011-01-11 Smith International, Inc. Diamond impregnated bits using a novel cutting structure
US8215420B2 (en) 2006-08-11 2012-07-10 Schlumberger Technology Corporation Thermally stable pointed diamond with increased impact resistance
US8449040B2 (en) 2006-08-11 2013-05-28 David R. Hall Shank for an attack tool
US7743855B2 (en) * 2006-09-05 2010-06-29 Smith International, Inc. Drill bit with cutter element having multifaceted, slanted top cutting surface
US9097074B2 (en) 2006-09-21 2015-08-04 Smith International, Inc. Polycrystalline diamond composites
GB2453875C (en) 2006-10-02 2009-09-16 Smith International Drill bits with dropping tendencies
US8236074B1 (en) 2006-10-10 2012-08-07 Us Synthetic Corporation Superabrasive elements, methods of manufacturing, and drill bits including same
US9027675B1 (en) 2011-02-15 2015-05-12 Us Synthetic Corporation Polycrystalline diamond compact including a polycrystalline diamond table containing aluminum carbide therein and applications therefor
US9017438B1 (en) 2006-10-10 2015-04-28 Us Synthetic Corporation Polycrystalline diamond compact including a polycrystalline diamond table with a thermally-stable region having at least one low-carbon-solubility material and applications therefor
US8960337B2 (en) 2006-10-26 2015-02-24 Schlumberger Technology Corporation High impact resistant tool with an apex width between a first and second transitions
US8109349B2 (en) 2006-10-26 2012-02-07 Schlumberger Technology Corporation Thick pointed superhard material
US9068410B2 (en) * 2006-10-26 2015-06-30 Schlumberger Technology Corporation Dense diamond body
US8821604B2 (en) 2006-11-20 2014-09-02 Us Synthetic Corporation Polycrystalline diamond compact and method of making same
US8034136B2 (en) * 2006-11-20 2011-10-11 Us Synthetic Corporation Methods of fabricating superabrasive articles
US8080074B2 (en) 2006-11-20 2011-12-20 Us Synthetic Corporation Polycrystalline diamond compacts, and related methods and applications
US7523794B2 (en) * 2006-12-18 2009-04-28 Hall David R Wear resistant assembly
US8205692B2 (en) * 2007-01-03 2012-06-26 Smith International, Inc. Rock bit and inserts with a chisel crest having a broadened region
US7798258B2 (en) * 2007-01-03 2010-09-21 Smith International, Inc. Drill bit with cutter element having crossing chisel crests
US7686106B2 (en) * 2007-01-03 2010-03-30 Smith International, Inc. Rock bit and inserts with wear relief grooves
US7631709B2 (en) 2007-01-03 2009-12-15 Smith International, Inc. Drill bit and cutter element having chisel crest with protruding pilot portion
KR20150121728A (en) 2007-01-26 2015-10-29 다이아몬드 이노베이션즈, 인크. Graded drilling cutters
US8028771B2 (en) 2007-02-06 2011-10-04 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
US8821603B2 (en) * 2007-03-08 2014-09-02 Kennametal Inc. Hard compact and method for making the same
US7942219B2 (en) 2007-03-21 2011-05-17 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
WO2008118897A1 (en) * 2007-03-27 2008-10-02 Halliburton Energy Services, Inc. Rotary drill bit with improved steerability and reduced wear
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
US9051794B2 (en) 2007-04-12 2015-06-09 Schlumberger Technology Corporation High impact shearing element
US7926883B2 (en) 2007-05-15 2011-04-19 Schlumberger Technology Corporation Spring loaded pick
US7703557B2 (en) * 2007-06-11 2010-04-27 Smith International, Inc. Fixed cutter bit with backup cutter elements on primary blades
GB0716268D0 (en) * 2007-08-21 2007-09-26 Reedhycalog Uk Ltd PDC cutter with stress diffusing structures
US20090057030A1 (en) * 2007-09-05 2009-03-05 Sandvik Mining And Construction Mining claw bit
US7721826B2 (en) 2007-09-06 2010-05-25 Schlumberger Technology Corporation Downhole jack assembly sensor
US8499861B2 (en) 2007-09-18 2013-08-06 Smith International, Inc. Ultra-hard composite constructions comprising high-density diamond surface
US8627904B2 (en) * 2007-10-04 2014-01-14 Smith International, Inc. Thermally stable polycrystalline diamond material with gradient structure
US7980334B2 (en) * 2007-10-04 2011-07-19 Smith International, Inc. Diamond-bonded constructions with improved thermal and mechanical properties
KR100942983B1 (en) * 2007-10-16 2010-02-17 주식회사 하이닉스반도체 Semiconductor device and method for manufacturing the same
US8678111B2 (en) 2007-11-16 2014-03-25 Baker Hughes Incorporated Hybrid drill bit and design method
US9016407B2 (en) 2007-12-07 2015-04-28 Smith International, Inc. Drill bit cutting structure and methods to maximize depth-of-cut for weight on bit applied
US9297211B2 (en) 2007-12-17 2016-03-29 Smith International, Inc. Polycrystalline diamond construction with controlled gradient metal content
US8292372B2 (en) 2007-12-21 2012-10-23 Hall David R Retention for holder shank
US8080071B1 (en) 2008-03-03 2011-12-20 Us Synthetic Corporation Polycrystalline diamond compact, methods of fabricating same, and applications therefor
US8911521B1 (en) 2008-03-03 2014-12-16 Us Synthetic Corporation Methods of fabricating a polycrystalline diamond body with a sintering aid/infiltrant at least saturated with non-diamond carbon and resultant products such as compacts
US8999025B1 (en) 2008-03-03 2015-04-07 Us Synthetic Corporation Methods of fabricating a polycrystalline diamond body with a sintering aid/infiltrant at least saturated with non-diamond carbon and resultant products such as compacts
US8100202B2 (en) 2008-04-01 2012-01-24 Smith International, Inc. Fixed cutter bit with backup cutter elements on secondary blades
US8540037B2 (en) 2008-04-30 2013-09-24 Schlumberger Technology Corporation Layered polycrystalline diamond
US20090272582A1 (en) 2008-05-02 2009-11-05 Baker Hughes Incorporated Modular hybrid drill bit
CA2730496C (en) * 2008-07-15 2013-11-19 Baker Hughes Incorporated Earth-boring tools and methods of making earth-boring tools including an impact material, and methods of drilling through casing
US20100012389A1 (en) * 2008-07-17 2010-01-21 Smith International, Inc. Methods of forming polycrystalline diamond cutters
US20100011673A1 (en) * 2008-07-18 2010-01-21 James Shamburger Method and apparatus for selectively leaching portions of PDC cutters through templates formed in mechanical shields placed over the cutters
US7757792B2 (en) * 2008-07-18 2010-07-20 Omni Ip Ltd Method and apparatus for selectively leaching portions of PDC cutters already mounted in drill bits
US7819208B2 (en) * 2008-07-25 2010-10-26 Baker Hughes Incorporated Dynamically stable hybrid drill bit
US8083012B2 (en) 2008-10-03 2011-12-27 Smith International, Inc. Diamond bonded construction with thermally stable region
US8020641B2 (en) * 2008-10-13 2011-09-20 Baker Hughes Incorporated Drill bit with continuously sharp edge cutting elements
US20100089661A1 (en) * 2008-10-13 2010-04-15 Baker Hughes Incorporated Drill bit with continuously sharp edge cutting elements
US8720609B2 (en) 2008-10-13 2014-05-13 Baker Hughes Incorporated Drill bit with continuously sharp edge cutting elements
US20100089658A1 (en) * 2008-10-13 2010-04-15 Baker Hughes Incorporated Drill bit with continuously sharp edge cutting elements
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
WO2010053710A3 (en) 2008-10-29 2010-07-08 Baker Hughes Incorporated Method and apparatus for robotic welding of drill bits
US8663349B2 (en) * 2008-10-30 2014-03-04 Us Synthetic Corporation Polycrystalline diamond compacts, and related methods and applications
GB2498480B (en) * 2008-12-18 2013-10-09 Smith International Method of designing a bottom hole assembly and a bottom hole assembly
US8047307B2 (en) 2008-12-19 2011-11-01 Baker Hughes Incorporated Hybrid drill bit with secondary backup cutters positioned with high side rake angles
RU2011131690A (en) 2008-12-31 2013-02-10 Бейкер Хьюз Инкорпорейтед A method and apparatus for an automated material application carbide coating on the roller cutter drill bits, hybrid drill bit having cutting elements with steel teeth with hard coating
US20100181116A1 (en) * 2009-01-16 2010-07-22 Baker Hughes Incororated Impregnated drill bit with diamond pins
EP2379256A4 (en) 2009-01-16 2014-05-07 Baker Hughes Inc Methods of forming polycrystalline diamond cutting elements, cutting elements so formed and drill bits so equipped
US8991526B2 (en) 2009-01-30 2015-03-31 Drilformance Technologies, Llc Drill bit
US8071173B1 (en) 2009-01-30 2011-12-06 Us Synthetic Corporation Methods of fabricating a polycrystalline diamond compact including a pre-sintered polycrystalline diamond table having a thermally-stable region
GB2467570B (en) * 2009-02-09 2012-09-19 Reedhycalog Uk Ltd Cutting element
US8061457B2 (en) * 2009-02-17 2011-11-22 Schlumberger Technology Corporation Chamfered pointed enhanced diamond insert
US8141664B2 (en) 2009-03-03 2012-03-27 Baker Hughes Incorporated Hybrid drill bit with high bearing pin angles
EP2414615A4 (en) 2009-03-31 2014-11-12 Baker Hughes Inc Methods for bonding preformed cutting tables to cutting element substrates and cutting elements formed by such processes
US8439136B2 (en) * 2009-04-02 2013-05-14 Atlas Copco Secoroc Llc Drill bit for earth boring
US7972395B1 (en) 2009-04-06 2011-07-05 Us Synthetic Corporation Superabrasive articles and methods for removing interstitial materials from superabrasive materials
US8322796B2 (en) 2009-04-16 2012-12-04 Schlumberger Technology Corporation Seal with contact element for pick shield
US8951317B1 (en) 2009-04-27 2015-02-10 Us Synthetic Corporation Superabrasive elements including ceramic coatings and methods of leaching catalysts from superabrasive elements
US8056651B2 (en) 2009-04-28 2011-11-15 Baker Hughes Incorporated Adaptive control concept for hybrid PDC/roller cone bits
US8701799B2 (en) 2009-04-29 2014-04-22 Schlumberger Technology Corporation Drill bit cutter pocket restitution
GB2481957B (en) 2009-05-06 2014-10-15 Smith International Methods of making and attaching tsp material for forming cutting elements, cutting elements having such tsp material and bits incorporating such cutting
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
US8459378B2 (en) 2009-05-13 2013-06-11 Baker Hughes Incorporated Hybrid drill bit
CN102459802B (en) * 2009-05-20 2014-12-17 史密斯国际股份有限公司 Cutting elements, methods for manufacturing such cutting elements, and tools incorporating such cutting elements
US8561729B2 (en) 2009-06-05 2013-10-22 Varel International, Ind., L.P. Casing bit and casing reamer designs
US8157026B2 (en) 2009-06-18 2012-04-17 Baker Hughes Incorporated Hybrid bit with variable exposure
CN102482919B (en) * 2009-06-18 2014-08-20 史密斯国际有限公司 Polycrystalline diamond cutting elements with engineered porosity and method for manufacturing such cutting elements
US8887839B2 (en) 2009-06-25 2014-11-18 Baker Hughes Incorporated Drill bit for use in drilling subterranean formations
US8327955B2 (en) 2009-06-29 2012-12-11 Baker Hughes Incorporated Non-parallel face polycrystalline diamond cutter and drilling tools so equipped
RU2012103934A (en) 2009-07-08 2013-08-20 Бейкер Хьюз Инкорпорейтед The cutting element for a drill bit for drilling subterranean formations
EP2452036A2 (en) 2009-07-08 2012-05-16 Baker Hughes Incorporated Cutting element and method of forming thereof
EP2479002A3 (en) 2009-07-27 2013-10-02 Baker Hughes Incorporated Abrasive article
US8945720B2 (en) * 2009-08-06 2015-02-03 National Oilwell Varco, L.P. Hard composite with deformable constituent and method of applying to earth-engaging tool
US8739904B2 (en) * 2009-08-07 2014-06-03 Baker Hughes Incorporated Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
US8267204B2 (en) 2009-08-11 2012-09-18 Baker Hughes Incorporated Methods of forming polycrystalline diamond cutting elements, cutting elements, and earth-boring tools carrying cutting elements
WO2011022474A4 (en) * 2009-08-18 2011-08-11 Baker Hughes Incorporated Method of forming polystalline diamond elements, polycrystalline diamond elements, and earth boring tools carrying such polycrystalline diamond elements
US8191658B2 (en) * 2009-08-20 2012-06-05 Baker Hughes Incorporated Cutting elements having different interstitial materials in multi-layer diamond tables, earth-boring tools including such cutting elements, and methods of forming same
US9352447B2 (en) * 2009-09-08 2016-05-31 Us Synthetic Corporation Superabrasive elements and methods for processing and manufacturing the same using protective layers
WO2011035051A3 (en) 2009-09-16 2011-06-09 Baker Hughes Incorporated External, divorced pdc bearing assemblies for hybrid drill bits
US8277722B2 (en) * 2009-09-29 2012-10-02 Baker Hughes Incorporated Production of reduced catalyst PDC via gradient driven reactivity
EP2483512A4 (en) 2009-10-02 2016-06-01 Baker Hughes Inc Cutting elements configured to generate shear lips during use in cutting, earth-boring tools including such cutting elements, and methods of forming and using such cutting elements and earth-boring tools
US8448724B2 (en) 2009-10-06 2013-05-28 Baker Hughes Incorporated Hole opener with hybrid reaming section
US8596387B1 (en) 2009-10-06 2013-12-03 Us Synthetic Corporation Polycrystalline diamond compact including a non-uniformly leached polycrystalline diamond table and applications therefor
US8191635B2 (en) 2009-10-06 2012-06-05 Baker Hughes Incorporated Hole opener with hybrid reaming section
US8590643B2 (en) * 2009-12-07 2013-11-26 Element Six Limited Polycrystalline diamond structure
US8936659B2 (en) 2010-04-14 2015-01-20 Baker Hughes Incorporated Methods of forming diamond particles having organic compounds attached thereto and compositions thereof
EP2564011A4 (en) 2010-04-27 2016-09-21 Baker Hughes Inc Methods of forming polycrystalline compacts
RU2559183C2 (en) * 2010-04-28 2015-08-10 Бейкер Хьюз Инкорпорейтед Polycrystalline diamond elements, cutting tools and drilling tools including such elements as well as production of such elements and drills
CN103080458B (en) 2010-06-29 2016-01-20 贝克休斯公司 Anti-drill having a drill slot structure liable old
US8875812B2 (en) 2010-07-23 2014-11-04 National Oilwell DHT, L.P. Polycrystalline diamond cutting element and method of using same
US8978789B1 (en) 2010-07-28 2015-03-17 Us Synthetic Corporation Polycrystalline diamond compact including an at least bi-layer polycrystalline diamond table, methods of manufacturing same, and applications therefor
CA2807231C (en) 2010-08-06 2016-06-28 Baker Hughes Incorporated Shaped cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
US8702824B1 (en) 2010-09-03 2014-04-22 Us Synthetic Corporation Polycrystalline diamond compact including a polycrystalline diamond table fabricated with one or more sp2-carbon-containing additives to enhance cutting lip formation, and related methods and applications
US8919463B2 (en) 2010-10-25 2014-12-30 National Oilwell DHT, L.P. Polycrystalline diamond cutting element
US8978786B2 (en) 2010-11-04 2015-03-17 Baker Hughes Incorporated System and method for adjusting roller cone profile on hybrid bit
CA2817693C (en) 2010-11-10 2016-08-30 Halliburton Energy Services, Inc. System and method of configuring drilling tools utilizing a critical depth of cut control curve
US8997900B2 (en) 2010-12-15 2015-04-07 National Oilwell DHT, L.P. In-situ boron doped PDC element
US9115552B2 (en) 2010-12-15 2015-08-25 Halliburton Energy Services, Inc. PDC bits with mixed cutter blades
US8720611B2 (en) 2010-12-15 2014-05-13 Halliburton Energy Services, Inc. PDC bits with cutters laid out in both spiral directions of bit rotation
US9782857B2 (en) 2011-02-11 2017-10-10 Baker Hughes Incorporated Hybrid drill bit having increased service life
WO2012109234A3 (en) 2011-02-11 2013-04-25 Baker Hughes Incorporated System and method for leg retention on hybrid bits
US8607899B2 (en) 2011-02-18 2013-12-17 National Oilwell Varco, L.P. Rock bit and cutter teeth geometries
US8728382B2 (en) 2011-03-29 2014-05-20 David R. Hall Forming a polycrystalline ceramic in multiple sintering phases
US8741010B2 (en) 2011-04-28 2014-06-03 Robert Frushour Method for making low stress PDC
US8858665B2 (en) 2011-04-28 2014-10-14 Robert Frushour Method for making fine diamond PDC
US8851207B2 (en) 2011-05-05 2014-10-07 Baker Hughes Incorporated Earth-boring tools and methods of forming such earth-boring tools
GB2490793B (en) 2011-05-10 2015-11-04 Element Six Abrasives Sa Tip for degradation tool and tool comprising same
US8974559B2 (en) 2011-05-12 2015-03-10 Robert Frushour PDC made with low melting point catalyst
US9061264B2 (en) 2011-05-19 2015-06-23 Robert H. Frushour High abrasion low stress PDC
US8828110B2 (en) 2011-05-20 2014-09-09 Robert Frushour ADNR composite
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
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
EP3159475A1 (en) 2011-11-15 2017-04-26 Baker Hughes Incorporated Hybrid drill bits having increased drilling efficiency
US9316058B2 (en) 2012-02-08 2016-04-19 Baker Hughes Incorporated Drill bits and earth-boring tools including shaped cutting elements
US8961630B2 (en) 2012-05-04 2015-02-24 Baker Hughes Incorporated Methods of forming cutting elements by removing metal from interstitial spaces in polycrystalline diamond
RU2014122863A (en) 2012-06-13 2015-12-10 Варел Интернэшнл Инд., Л.П. The polycrystalline diamond cutters high strength and heat resistance
US20140042128A1 (en) * 2012-08-08 2014-02-13 General Electric Company Electric discharge machining process, article for electric discharge machining, and electric discharge coolant
US9441422B2 (en) * 2012-08-29 2016-09-13 National Oilwell DHT, L.P. Cutting insert for a rock drill bit
US20140134403A1 (en) * 2012-11-09 2014-05-15 Diamond Innovations, Inc. Interface modification of polycrystalline diamond compact
US8986406B2 (en) 2012-12-07 2015-03-24 Rusty Petree Polycrystalline diamond compact with increased impact resistance
US20140183798A1 (en) 2012-12-28 2014-07-03 Smith International, Inc. Manufacture of cutting elements having lobes
US9140072B2 (en) 2013-02-28 2015-09-22 Baker Hughes Incorporated Cutting elements including non-planar interfaces, earth-boring tools including such cutting elements, and methods of forming cutting elements
US9550276B1 (en) 2013-06-18 2017-01-24 Us Synthetic Corporation Leaching assemblies, systems, and methods for processing superabrasive elements
US9534450B2 (en) * 2013-07-22 2017-01-03 Baker Hughes Incorporated Thermally stable polycrystalline compacts for reduced spalling, earth-boring tools including such compacts, and related methods
US9481033B2 (en) * 2013-10-25 2016-11-01 Baker Hughes Incorporated Earth-boring tools including cutting elements with alignment features and related methods
CN105612305A (en) * 2013-11-08 2016-05-25 哈利伯顿能源服务公司 Dynamic wear prediction for fixed cutter drill bits
US9789587B1 (en) 2013-12-16 2017-10-17 Us Synthetic Corporation Leaching assemblies, systems, and methods for processing superabrasive elements
US9845642B2 (en) 2014-03-17 2017-12-19 Baker Hughes Incorporated Cutting elements having non-planar cutting faces with selectively leached regions, earth-boring tools including such cutting elements, and related methods
US9605488B2 (en) 2014-04-08 2017-03-28 Baker Hughes Incorporated Cutting elements including undulating boundaries between catalyst-containing and catalyst-free regions of polycrystalline superabrasive materials and related earth-boring tools and methods
US9714545B2 (en) 2014-04-08 2017-07-25 Baker Hughes Incorporated Cutting elements having a non-uniform annulus leach depth, earth-boring tools including such cutting elements, and related methods
US9863189B2 (en) 2014-07-11 2018-01-09 Baker Hughes Incorporated Cutting elements comprising partially leached polycrystalline material, tools comprising such cutting elements, and methods of forming wellbores using such cutting elements
US9908215B1 (en) 2014-08-12 2018-03-06 Us Synthetic Corporation Systems, methods and assemblies for processing superabrasive materials
US9931714B2 (en) 2015-09-11 2018-04-03 Baker Hughes, A Ge Company, Llc Methods and systems for removing interstitial material from superabrasive materials of cutting elements using energy beams

Family Cites Families (116)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141746A (en) 1960-10-03 1964-07-21 Gen Electric Diamond compact abrasive
US3136615A (en) 1960-10-03 1964-06-09 Gen Electric Compact of abrasive crystalline material with boron carbide bonding medium
US3233988A (en) 1964-05-19 1966-02-08 Gen Electric Cubic boron nitride compact and method for its production
US3745623A (en) * 1971-12-27 1973-07-17 Gen Electric Diamond tools for machining
US4108614A (en) 1976-04-14 1978-08-22 Robert Dennis Mitchell Zirconium layer for bonding diamond compact to cemented carbide backing
US4151686A (en) 1978-01-09 1979-05-01 General Electric Company Silicon carbide and silicon bonded polycrystalline diamond body and method of making it
US4224380A (en) 1978-03-28 1980-09-23 General Electric Company Temperature resistant abrasive compact and method for making same
US4373593A (en) 1979-03-16 1983-02-15 Christensen, Inc. Drill bit
US4268276A (en) 1978-04-24 1981-05-19 General Electric Company Compact of boron-doped diamond and method for making same
EP0006827B1 (en) 1978-06-29 1981-01-28 Diamond S.A. Method of working polycristalline synthetic diamond
DE2966640D1 (en) 1978-08-18 1984-03-15 De Beers Ind Diamond Method of making tool inserts, wire-drawing die blank and drill bit comprising such inserts
US4303442A (en) 1978-08-26 1981-12-01 Sumitomo Electric Industries, Ltd. Diamond sintered body and the method for producing the same
US4255165A (en) 1978-12-22 1981-03-10 General Electric Company Composite compact of interleaved polycrystalline particles and cemented carbide masses
US4247304A (en) 1978-12-29 1981-01-27 General Electric Company Process for producing a composite of polycrystalline diamond and/or cubic boron nitride body and substrate phases
DE3008765C2 (en) 1979-03-19 1986-05-22 De Beers Industrial Diamond Division (Proprietary) Ltd., Johannesburg, Transvaal, Za
US4333986A (en) 1979-06-11 1982-06-08 Sumitomo Electric Industries, Ltd. Diamond sintered compact wherein crystal particles are uniformly orientated in a particular direction and a method for producing the same
US4311490A (en) 1980-12-22 1982-01-19 General Electric Company Diamond and cubic boron nitride abrasive compacts using size selective abrasive particle layers
DE3113109C2 (en) * 1981-04-01 1983-11-17 Christensen, Inc., 84115 Salt Lake City, Utah, Us
US4606738A (en) 1981-04-01 1986-08-19 General Electric Company Randomly-oriented polycrystalline silicon carbide coatings for abrasive grains
US4525179A (en) 1981-07-27 1985-06-25 General Electric Company Process for making diamond and cubic boron nitride compacts
US4504519A (en) 1981-10-21 1985-03-12 Rca Corporation Diamond-like film and process for producing same
US4560014A (en) 1982-04-05 1985-12-24 Smith International, Inc. Thrust bearing assembly for a downhole drill motor
US4522633A (en) 1982-08-05 1985-06-11 Dyer Henry B Abrasive bodies
US4486286A (en) 1982-09-28 1984-12-04 Nerken Research Corp. Method of depositing a carbon film on a substrate and products obtained thereby
US4570726A (en) 1982-10-06 1986-02-18 Megadiamond Industries, Inc. Curved contact portion on engaging elements for rotary type drag bits
DE3376533D1 (en) 1982-12-21 1988-06-16 De Beers Ind Diamond Abrasive compacts and method of making them
US4534773A (en) 1983-01-10 1985-08-13 Cornelius Phaal Abrasive product and method for manufacturing
GB8303498D0 (en) 1983-02-08 1983-03-16 De Beers Ind Diamond Abrasive products
JPS59219500A (en) 1983-05-24 1984-12-10 Sumitomo Electric Ind Ltd Diamond sintered body and treatment thereof
US4629373A (en) * 1983-06-22 1986-12-16 Megadiamond Industries, Inc. Polycrystalline diamond body with enhanced surface irregularities
US4776861A (en) 1983-08-29 1988-10-11 General Electric Company Polycrystalline abrasive grit
US4828582A (en) 1983-08-29 1989-05-09 General Electric Company Polycrystalline abrasive grit
EP0156235B1 (en) 1984-03-26 1989-05-24 Eastman Christensen Company Multi-component cutting element using consolidated rod-like polycrystalline diamond
US4726718A (en) 1984-03-26 1988-02-23 Eastman Christensen Co. Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks
US5199832A (en) 1984-03-26 1993-04-06 Meskin Alexander K Multi-component cutting element using polycrystalline diamond disks
DE3546783C2 (en) 1984-03-30 1993-01-28 De Beers Industrial Diamond Division (Proprietary) Ltd., Johannesburg, Transvaal, Za
US4707384A (en) 1984-06-27 1987-11-17 Santrade Limited Method for making a composite body coated with one or more layers of inorganic materials including CVD diamond
GB8418481D0 (en) 1984-07-19 1984-08-22 Nl Petroleum Prod Rotary drill bits
US4670025A (en) 1984-08-13 1987-06-02 Pipkin Noel J Thermally stable diamond compacts
US4645977A (en) 1984-08-31 1987-02-24 Matsushita Electric Industrial Co., Ltd. Plasma CVD apparatus and method for forming a diamond like carbon film
DE3583567D1 (en) 1984-09-08 1991-08-29 Sumitomo Electric Industries Sintered werkzeugkoerper of diamond and process for its production.
US4605343A (en) 1984-09-20 1986-08-12 General Electric Company Sintered polycrystalline diamond compact construction with integral heat sink
US4621031A (en) 1984-11-16 1986-11-04 Dresser Industries, Inc. Composite material bonded by an amorphous metal, and preparation thereof
US4802539A (en) 1984-12-21 1989-02-07 Smith International, Inc. Polycrystalline diamond bearing system for a roller cone rock bit
US5127923A (en) 1985-01-10 1992-07-07 U.S. Synthetic Corporation Composite abrasive compact having high thermal stability
US4797241A (en) 1985-05-20 1989-01-10 Sii Megadiamond Method for producing multiple polycrystalline bodies
US4662348A (en) 1985-06-20 1987-05-05 Megadiamond, Inc. Burnishing diamond
US4664705A (en) 1985-07-30 1987-05-12 Sii Megadiamond, Inc. Infiltrated thermally stable polycrystalline diamond
DE3675480D1 (en) 1985-08-22 1990-12-13 De Beers Ind Diamond Tool part.
GB8607701D0 (en) 1986-03-27 1986-04-30 Shell Int Research Rotary drill bit
US4871377A (en) 1986-07-30 1989-10-03 Frushour Robert H Composite abrasive compact having high thermal stability and transverse rupture strength
US5116568A (en) 1986-10-20 1992-05-26 Norton Company Method for low pressure bonding of PCD bodies
US4943488A (en) 1986-10-20 1990-07-24 Norton Company Low pressure bonding of PCD bodies and method for drill bits and the like
US5030276A (en) 1986-10-20 1991-07-09 Norton Company Low pressure bonding of PCD bodies and method
US4766040A (en) 1987-06-26 1988-08-23 Sandvik Aktiebolag Temperature resistant abrasive polycrystalline diamond bodies
US4756631A (en) 1987-07-24 1988-07-12 Smith International, Inc. Diamond bearing for high-speed drag bits
US4807402A (en) 1988-02-12 1989-02-28 General Electric Company Diamond and cubic boron nitride
US4899922A (en) 1988-02-22 1990-02-13 General Electric Company Brazed thermally-stable polycrystalline diamond compact workpieces and their fabrication
US5027912A (en) 1988-07-06 1991-07-02 Baker Hughes Incorporated Drill bit having improved cutter configuration
US5011514A (en) * 1988-07-29 1991-04-30 Norton Company Cemented and cemented/sintered superabrasive polycrystalline bodies and methods of manufacture thereof
CA1325110C (en) 1988-08-04 1993-12-14 Trevor John Martell Thermally stable diamond abrasive compact body
US4944772A (en) 1988-11-30 1990-07-31 General Electric Company Fabrication of supported polycrystalline abrasive compacts
FR2647153B1 (en) * 1989-05-17 1995-12-01 Combustible Nucleaire Composite tool comprising an active part of polycrystalline diamond and the tool METHOD
GB2234542B (en) 1989-08-04 1993-03-31 Reed Tool Co Improvements in or relating to cutting elements for rotary drill bits
US5176720A (en) 1989-09-14 1993-01-05 Martell Trevor J Composite abrasive compacts
US4976324A (en) 1989-09-22 1990-12-11 Baker Hughes Incorporated Drill bit having diamond film cutting surface
DE69001241T2 (en) 1989-12-11 1993-07-22 De Beers Ind Diamond Abrasive products.
EP0462955B1 (en) 1990-06-15 1995-12-27 Diamant Boart Stratabit S.A. Improved tools for cutting rock drilling
DE69117812T2 (en) 1990-06-15 1996-07-25 Sandvik Ab Tools for rotary and percussion drilling with a diamond layer
DE69130039D1 (en) 1990-06-15 1998-10-01 Sandvik Ab Cemented carbide body for rock drilling, cutting of minerals and for producing streets
EP0480895B1 (en) 1990-10-11 1997-05-02 Sandvik Aktiebolag Improved diamond tools for rock drilling, metal cutting and wear part applications
CA2060823C (en) 1991-02-08 2002-09-10 Naoya Omori Diamond-or diamond-like carbon-coated hard materials
US5092687A (en) 1991-06-04 1992-03-03 Anadrill, Inc. Diamond thrust bearing and method for manufacturing same
GB9125558D0 (en) 1991-11-30 1992-01-29 Camco Drilling Group Ltd Improvements in or relating to cutting elements for rotary drill bits
US5238074A (en) 1992-01-06 1993-08-24 Baker Hughes Incorporated Mosaic diamond drag bit cutter having a nonuniform wear pattern
US5213248A (en) 1992-01-10 1993-05-25 Norton Company Bonding tool and its fabrication
US5439492A (en) 1992-06-11 1995-08-08 General Electric Company Fine grain diamond workpieces
US5337844A (en) 1992-07-16 1994-08-16 Baker Hughes, Incorporated Drill bit having diamond film cutting elements
CA2109339A1 (en) 1992-10-28 1994-04-29 Oliver Frank Rudolf August Damm Diamond bearing assembly
CA2109335A1 (en) 1992-10-28 1994-04-29 Oliver Frank Rudolf August Damm Diamond bearing assembly
US5776615A (en) 1992-11-09 1998-07-07 Northwestern University Superhard composite materials including compounds of carbon and nitrogen deposited on metal and metal nitride, carbide and carbonitride
GB9224627D0 (en) 1992-11-24 1993-01-13 De Beers Ind Diamond Drill bit
JPH06247793A (en) 1993-02-22 1994-09-06 Sumitomo Electric Ind Ltd Single crystalline diamond and its production
DE69408585D1 (en) 1993-03-26 1998-04-02 De Beers Ind Diamond bearing device
CA2124394C (en) 1993-05-27 2004-04-06 Klaus Tank Method of making an abrasive compact
CA2124393C (en) 1993-05-27 2004-07-13 Klaus Tank Method of making an abrasive compact
GB9314954D0 (en) * 1993-07-16 1993-09-01 Camco Drilling Group Ltd Improvements in or relating to torary drill bits
US5379853A (en) 1993-09-20 1995-01-10 Smith International, Inc. Diamond drag bit cutting elements
US5605198A (en) 1993-12-09 1997-02-25 Baker Hughes Incorporated Stress related placement of engineered superabrasive cutting elements on rotary drag bits
US5505273A (en) 1994-01-24 1996-04-09 Smith International, Inc. Compound diamond cutter
GB2317195B (en) 1994-08-10 1998-07-15 Smith International Cutting structure of a drill bit and a fixed cutter drill bit
US5549171A (en) 1994-08-10 1996-08-27 Smith International, Inc. Drill bit with performance-improving cutting structure
US5510193A (en) 1994-10-13 1996-04-23 General Electric Company Supported polycrystalline diamond compact having a cubic boron nitride interlayer for improved physical properties
GB2294712B (en) 1994-11-01 1998-06-24 Camco Drilling Group Ltd Improvements in or relating to rotary drill bits
US5607024A (en) 1995-03-07 1997-03-04 Smith International, Inc. Stability enhanced drill bit and cutting structure having zones of varying wear resistance
US5524719A (en) 1995-07-26 1996-06-11 Dennis Tool Company Internally reinforced polycrystalling abrasive insert
US5667028A (en) 1995-08-22 1997-09-16 Smith International, Inc. Multiple diamond layer polycrystalline diamond composite cutters
US5722499A (en) 1995-08-22 1998-03-03 Smith International, Inc. Multiple diamond layer polycrystalline diamond composite cutters
US5855996A (en) * 1995-12-12 1999-01-05 General Electric Company Abrasive compact with improved properties
US5776355A (en) 1996-01-11 1998-07-07 Saint-Gobain/Norton Industrial Ceramics Corp Method of preparing cutting tool substrate materials for deposition of a more adherent diamond coating and products resulting therefrom
US5833021A (en) 1996-03-12 1998-11-10 Smith International, Inc. Surface enhanced polycrystalline diamond composite cutters
US5620382A (en) 1996-03-18 1997-04-15 Hyun Sam Cho Diamond golf club head
US5979571A (en) * 1996-09-27 1999-11-09 Baker Hughes Incorporated Combination milling tool and drill bit
US6009963A (en) 1997-01-14 2000-01-04 Baker Hughes Incorporated Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency
GB9701695D0 (en) 1997-01-28 1997-03-19 De Beers Ind Diamond Insert for an abrasive tool
US5881830A (en) 1997-02-14 1999-03-16 Baker Hughes Incorporated Superabrasive drill bit cutting element with buttress-supported planar chamfer
GB9703571D0 (en) 1997-02-20 1997-04-09 De Beers Ind Diamond Diamond-containing body
US5979578A (en) 1997-06-05 1999-11-09 Smith International, Inc. Multi-layer, multi-grade multiple cutting surface PDC cutter
GB9712342D0 (en) * 1997-06-14 1997-08-13 Camco Int Uk Ltd Improvements in or relating to rotary drill bits
US5954147A (en) 1997-07-09 1999-09-21 Baker Hughes Incorporated Earth boring bits with nanocrystalline diamond enhanced elements
GB2327690B (en) 1997-07-26 2002-02-27 Camco Internat Improvements in or relating to the manufacture of elements faced with superhard material
US5960896A (en) * 1997-09-08 1999-10-05 Baker Hughes Incorporated Rotary drill bits employing optimal cutter placement based on chamfer geometry
US6344149B1 (en) 1998-11-10 2002-02-05 Kennametal Pc Inc. Polycrystalline diamond member and method of making the same
US6126741A (en) 1998-12-07 2000-10-03 General Electric Company Polycrystalline carbon conversion
US6269894B1 (en) 1999-08-24 2001-08-07 Camco International (Uk) Limited Cutting elements for rotary drill bits
US6248447B1 (en) 1999-09-03 2001-06-19 Camco International (Uk) Limited Cutting elements and methods of manufacture thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070240905A1 (en) * 2006-04-18 2007-10-18 Varel International, Ltd. Drill bit with multiple cutter geometries
US7677333B2 (en) * 2006-04-18 2010-03-16 Varel International Ind., L.P. Drill bit with multiple cutter geometries
US20100139988A1 (en) * 2006-04-18 2010-06-10 Varel International Ind., L.P. Drill bit with multiple cutter geometries
US8109346B2 (en) 2006-04-18 2012-02-07 Varel International Ind., L.P. Drill bit supporting multiple cutting elements with multiple cutter geometries and method of assembly

Also Published As

Publication number Publication date Type
CA2865443A1 (en) 2002-03-28 application
US6481511B2 (en) 2002-11-19 grant
DE60142425D1 (en) 2010-08-05 grant
US20020074168A1 (en) 2002-06-20 application
US6601662B2 (en) 2003-08-05 grant
US6410085B1 (en) 2002-06-25 grant
DE60140617D1 (en) 2010-01-07 grant
US6435058B1 (en) 2002-08-20 grant
US20020033282A1 (en) 2002-03-21 application
US20020033383A1 (en) 2002-03-21 application

Similar Documents

Publication Publication Date Title
US4844185A (en) Rotary drill bits
US4505342A (en) Drill bit
US6401844B1 (en) Cutter with complex superabrasive geometry and drill bits so equipped
US6045440A (en) Polycrystalline diamond compact PDC cutter with improved cutting capability
US5722497A (en) Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
US5332051A (en) Optimized PDC cutting shape
US5279375A (en) Multidirectional drill bit cutter
US5449048A (en) Drill bit having chip breaker polycrystalline diamond compact and hard metal insert at gauge surface
US4429755A (en) Drill with polycrystalline diamond drill blanks for soft, medium-hard and hard formations
US6575256B1 (en) Drill bit with lateral movement mitigation and method of subterranean drilling
US5531281A (en) Rotary drilling tools
US5732784A (en) Cutting means for drag drill bits
US5346025A (en) Drill bit with improved insert cutter pattern and method of drilling
US5027912A (en) Drill bit having improved cutter configuration
US6349780B1 (en) Drill bit with selectively-aggressive gage pads
US6510906B1 (en) Impregnated bit with PDC cutters in cone area
US4823892A (en) Rotary drill bits
US5172778A (en) Drill bit cutter and method for reducing pressure loading of cutters
US20080308321A1 (en) Interchangeable bearing blocks for drill bits, and drill bits including same
US5467836A (en) Fixed cutter bit with shear cutting gage
US4570726A (en) Curved contact portion on engaging elements for rotary type drag bits
US4718505A (en) Rotary drill bits
US20110284294A1 (en) Rotational drill bits and drilling apparatuses including the same
US6935444B2 (en) Superabrasive cutting elements with cutting edge geometry having enhanced durability, method of producing same, and drill bits so equipped
US5232320A (en) Cutting insert for a rotary cutting tool

Legal Events

Date Code Title Description
AS Assignment

Owner name: CAMCO INTERNATIONAL (UK) LIMITED, UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GRIFFIN, NIGEL DENNIS;HUGHES, PETER R.;MATTHIAS, TERRY R.;REEL/FRAME:012943/0993

Effective date: 20020429

AS Assignment

Owner name: REEDHYCALOG UK LTD., UNITED KINGDOM

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CAMCO INTERNATIONAL (UK) LIMITED;REEL/FRAME:014743/0406

Effective date: 20030218

FPAY Fee payment

Year of fee payment: 4

FPAY Fee payment

Year of fee payment: 8

FPAY Fee payment

Year of fee payment: 12