WO2012148704A3 - Casing end tool - Google Patents

Casing end tool Download PDF

Info

Publication number
WO2012148704A3
WO2012148704A3 PCT/US2012/033460 US2012033460W WO2012148704A3 WO 2012148704 A3 WO2012148704 A3 WO 2012148704A3 US 2012033460 W US2012033460 W US 2012033460W WO 2012148704 A3 WO2012148704 A3 WO 2012148704A3
Authority
WO
WIPO (PCT)
Prior art keywords
end tool
casing end
blades
blade
channels
Prior art date
Application number
PCT/US2012/033460
Other languages
French (fr)
Other versions
WO2012148704A2 (en
Inventor
William W. King
Michael R. Reese
Steven W. Drews
Ian Alastair Kirk
Scott Buteaud
Original Assignee
Varel International, Ind., L.P.
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 Varel International, Ind., L.P. filed Critical Varel International, Ind., L.P.
Priority to CA2832481A priority Critical patent/CA2832481A1/en
Priority to RU2013152354/03A priority patent/RU2013152354A/en
Priority to CN201280020161.6A priority patent/CN103492662A/en
Priority to EP12776178.1A priority patent/EP2702223A4/en
Priority to SG2013074851A priority patent/SG194123A1/en
Publication of WO2012148704A2 publication Critical patent/WO2012148704A2/en
Publication of WO2012148704A3 publication Critical patent/WO2012148704A3/en

Links

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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture 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
    • B22F7/06—Manufacture 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
    • B22F7/062—Manufacture 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 involving the connection or repairing of preformed parts
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed cutting elements
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/14—Casing shoes for the protection of the bottom of the casing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
    • B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Composite Materials (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Powder Metallurgy (AREA)

Abstract

A casing end tool has a mandrel and a body that is defined by a wall having an outer surface and an inner surface opposite of the outer surface. The body is fabricated from crystalline tungsten powder and a binder material. The inner surface includes a set of raised bosses or land structures. The body includes a plurality of blades on the outer surface. Each blade has a plurality of cutters. Blade channels and cutter channels on the blades enhance fragmentation of the body during drill out of the casing end tool.
PCT/US2012/033460 2011-04-27 2012-04-13 Casing end tool WO2012148704A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CA2832481A CA2832481A1 (en) 2011-04-27 2012-04-13 Casing end tool
RU2013152354/03A RU2013152354A (en) 2011-04-27 2012-04-13 END TOOL FOR DRILLING A Casing
CN201280020161.6A CN103492662A (en) 2011-04-27 2012-04-13 Casing end tool
EP12776178.1A EP2702223A4 (en) 2011-04-27 2012-04-13 Casing end tool
SG2013074851A SG194123A1 (en) 2011-04-27 2012-04-13 Casing end tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13/095,746 US20110209922A1 (en) 2009-06-05 2011-04-27 Casing end tool
US13/095,746 2011-04-27

Publications (2)

Publication Number Publication Date
WO2012148704A2 WO2012148704A2 (en) 2012-11-01
WO2012148704A3 true WO2012148704A3 (en) 2013-04-04

Family

ID=47072998

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/033460 WO2012148704A2 (en) 2011-04-27 2012-04-13 Casing end tool

Country Status (7)

Country Link
US (1) US20110209922A1 (en)
EP (1) EP2702223A4 (en)
CN (1) CN103492662A (en)
CA (1) CA2832481A1 (en)
RU (1) RU2013152354A (en)
SG (1) SG194123A1 (en)
WO (1) WO2012148704A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0900606D0 (en) * 2009-01-15 2009-02-25 Downhole Products Plc Tubing shoe
US8887839B2 (en) * 2009-06-25 2014-11-18 Baker Hughes Incorporated Drill bit for use in drilling subterranean formations
US20140083177A1 (en) * 2011-02-28 2014-03-27 Schlumberger Technology Corporation System For Logging While Running Casing
CA2830721C (en) 2011-03-01 2016-06-28 Smith International, Inc. High performance wellbore departure and drilling system
US8997895B2 (en) * 2011-04-15 2015-04-07 Smith International, Inc. System and method for coupling an impregnated drill bit to a whipstock
CN104995369B (en) 2012-12-26 2018-06-08 史密斯国际有限公司 Scroll-diced device with bottom support
US9631435B2 (en) 2013-12-10 2017-04-25 National Oilwell DHT, L.P. Matrix fixed cutter drill bits and methods for manufacturing same
GB2539005B (en) * 2015-06-03 2017-12-27 Schlumberger Holdings Rotary cutting tool with angled flow channel on outward face
GB2554275A (en) 2015-06-23 2018-03-28 Halliburton Energy Services Inc Pre-diffused mandrel coating to provide enhanced bonding between metallic and composite components
US10428584B2 (en) 2016-07-13 2019-10-01 Varel International Ind., L.P. Bit for drilling with casing or liner string and manufacture thereof
CN108868618B (en) * 2018-08-03 2023-12-12 洛阳中岩工程材料有限公司 Cast anchoring drill bit convenient for efficient production
USD940207S1 (en) * 2018-11-02 2022-01-04 Vulcan Completion Products Uk Limited Nose for a shoe suitable for use in an oil and gas wellbore
CN110725652A (en) * 2019-10-18 2020-01-24 中国石油集团渤海钻探工程有限公司 Drillable casing drill bit
CN113846983A (en) * 2021-10-08 2021-12-28 核工业二四三大队 Blade for cutting uranium mining sleeve and reaming mineral-containing aquifer

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869330A (en) * 1988-01-20 1989-09-26 Eastman Christensen Company Apparatus for establishing hydraulic flow regime in drill bits
US20070261890A1 (en) * 2006-05-10 2007-11-15 Smith International, Inc. Fixed Cutter Bit With Centrally Positioned Backup Cutter Elements
US20100166592A1 (en) * 2008-12-31 2010-07-01 Uno Timothy P Infiltration methods for forming drill bits
US20100307837A1 (en) * 2009-06-05 2010-12-09 Varel International, Ind., L.P. Casing bit and casing reamer designs

Family Cites Families (92)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191312421A (en) * 1913-05-28 1914-05-28 Charles Gladitz Improvements in the Manufacture of Tungsten Metal Bodies.
US1650631A (en) * 1922-08-17 1927-11-29 Gen Electric Process of preparing metals with high-temperature fusing points such as tungsten andof preparing wire therefrom
US1970761A (en) * 1932-10-03 1934-08-21 John Eastman Whipstock
US2196528A (en) * 1937-10-28 1940-04-09 Eastman Oil Well Survey Corp O Knuckle anchor for whipstocks
US2207920A (en) * 1937-10-28 1940-07-16 Eastman Oil Well Survey Corp Expanding foot piece for whipstocks
US2136748A (en) * 1937-12-13 1938-11-15 Morris A Lottinger Means for setting whipstocks in wells
US2357330A (en) * 1940-04-02 1944-09-05 Sperry Sun Well Surveying Co Whipstock assembly
US2334746A (en) * 1940-11-12 1943-11-23 Drilling And Exploration Compa Collapsible whipstock
US2331293A (en) * 1941-11-05 1943-10-12 Sperry Sun Well Surveying Co Whipstock
US2463367A (en) * 1944-02-19 1949-03-01 Colin G Fink Method of producing tungsten
US2495439A (en) * 1945-08-08 1950-01-24 Neville B Brimble Side wall sample taker
US2493178A (en) * 1946-06-03 1950-01-03 Jr Edward B Williams Drill bit
US2658284A (en) * 1949-01-03 1953-11-10 Arps Jan Jacob Continuous directional drilling
US2642267A (en) * 1951-01-17 1953-06-16 John A Zublin Apparatus for initiating and drilling deviating curved bores from existing vertical wll bores
US2644672A (en) * 1951-01-29 1953-07-07 Ted C Mathews Diamond bit protector
US2669429A (en) * 1951-11-06 1954-02-16 John A Zublin Apparatus for drilling deviating bores utilizing a plurality of curved tubular drillguide sections
US2708105A (en) * 1953-08-31 1955-05-10 Jr Edward B Williams Combination core and plug bit
US3116146A (en) * 1961-07-27 1963-12-31 Gen Electric Method for sintering tungsten powder
US3266577A (en) * 1963-10-14 1966-08-16 Pan American Petroleum Corp Guide shoe
US3322218A (en) * 1965-05-04 1967-05-30 Exxon Production Research Co Multi-port diamond bit
US3451791A (en) * 1967-08-16 1969-06-24 Du Pont Cobalt-bonded tungsten carbide
US3545825A (en) * 1968-05-01 1970-12-08 James E Hamilton Adjustable drill pipe stabilizer tool
US3647401A (en) * 1969-06-04 1972-03-07 Du Pont Anisodimensional tungsten carbide platelets bonded with cobalt
US4101318A (en) * 1976-12-10 1978-07-18 Erwin Rudy Cemented carbide-steel composites for earthmoving and mining applications
US4253533A (en) * 1979-11-05 1981-03-03 Smith International, Inc. Variable wear pad for crossflow drag bit
US4382477A (en) * 1980-01-10 1983-05-10 Drilling & Service U.K. Limited Rotary drill bits
US4478298A (en) * 1982-12-13 1984-10-23 Petroleum Concepts, Inc. Drill bit stud and method of manufacture
USRE33757E (en) * 1984-06-07 1991-12-03 Dresser Industries, Inc. Diamond drill bit with varied cutting elements
US4823892A (en) * 1984-07-19 1989-04-25 Nl Petroleum Products Limited Rotary drill bits
US4605343A (en) * 1984-09-20 1986-08-12 General Electric Company Sintered polycrystalline diamond compact construction with integral heat sink
US5127923A (en) * 1985-01-10 1992-07-07 U.S. Synthetic Corporation Composite abrasive compact having high thermal stability
US4696354A (en) * 1986-06-30 1987-09-29 Hughes Tool Company - Usa Drilling bit with full release void areas
US4776411A (en) * 1987-03-23 1988-10-11 Smith International, Inc. Fluid flow control for drag bits
US4794986A (en) * 1987-11-27 1989-01-03 Weatherford U.S., Inc. Reticulated centralizing apparatus
US4815342A (en) * 1987-12-15 1989-03-28 Amoco Corporation Method for modeling and building drill bits
US5042596A (en) * 1989-02-21 1991-08-27 Amoco Corporation Imbalance compensated drill bit
US5090492A (en) * 1991-02-12 1992-02-25 Dresser Industries, Inc. Drill bit with vibration stabilizers
US5244039A (en) * 1991-10-31 1993-09-14 Camco Drilling Group Ltd. Rotary drill bits
US5265685A (en) * 1991-12-30 1993-11-30 Dresser Industries, Inc. Drill bit with improved insert cutter pattern
US5460233A (en) * 1993-03-30 1995-10-24 Baker Hughes Incorporated Diamond cutting structure for drilling hard subterranean formations
US5330016A (en) * 1993-05-07 1994-07-19 Barold Technology, Inc. Drill bit and other downhole tools having electro-negative surfaces and sacrificial anodes to reduce mud balling
GB9314954D0 (en) * 1993-07-16 1993-09-01 Camco Drilling Group Ltd Improvements in or relating to torary drill bits
US5826651A (en) * 1993-09-10 1998-10-27 Weatherford/Lamb, Inc. Wellbore single trip milling
US5441121A (en) * 1993-12-22 1995-08-15 Baker Hughes, Inc. Earth boring drill bit with shell supporting an external drilling surface
GB9404857D0 (en) * 1994-03-12 1994-04-27 Downhole Products Uk Ltd Casing centraliser
US5549171A (en) * 1994-08-10 1996-08-27 Smith International, Inc. Drill bit with performance-improving cutting structure
US5551522A (en) * 1994-10-12 1996-09-03 Smith International, Inc. Drill bit having stability enhancing cutting structure
GB9421924D0 (en) * 1994-11-01 1994-12-21 Camco Drilling Group Ltd Improvements in or relating to rotary drill bits
GB9504968D0 (en) * 1995-03-11 1995-04-26 Brit Bit Limited Improved casing shoe
US5979571A (en) * 1996-09-27 1999-11-09 Baker Hughes Incorporated Combination milling tool and drill bit
US6138756A (en) * 1998-01-09 2000-10-31 Halliburton Energy Services, Inc. Milling guide having orientation and depth determination capabilities
US6401820B1 (en) * 1998-01-24 2002-06-11 Downhole Products Plc Downhole tool
US6039127A (en) * 1998-03-13 2000-03-21 Loudon Enterprises, Inc. Rock drill
CA2261495A1 (en) * 1998-03-13 1999-09-13 Praful C. Desai Method for milling casing and drilling formation
AU751544B2 (en) * 1998-06-11 2002-08-22 Weatherford Technology Holdings, Llc A drilling tool
US6287360B1 (en) * 1998-09-18 2001-09-11 Smith International, Inc. High-strength matrix body
ATE285482T1 (en) * 1999-07-13 2005-01-15 Gen Atomics TUNGSTEN ALLOY SINGLE CRYSTAL FOR PENETRATOR AND PRODUCTION METHOD THEREOF
US6298930B1 (en) * 1999-08-26 2001-10-09 Baker Hughes Incorporated Drill bits with controlled cutter loading and depth of cut
DE60030159D1 (en) * 1999-12-22 2006-09-28 Weatherford Lamb DRILLING TOOL FOR SIMULTANEOUS DRILLING AND DRILLING
US6454027B1 (en) * 2000-03-09 2002-09-24 Smith International, Inc. Polycrystalline diamond carbide composites
GB0005740D0 (en) * 2000-03-10 2000-05-03 Downhole Products Plc Centraliser
US6464002B1 (en) * 2000-04-10 2002-10-15 Weatherford/Lamb, Inc. Whipstock assembly
GB0008988D0 (en) * 2000-04-13 2000-05-31 Bbl Downhole Tools Ltd Drill bit nozzle
US6612384B1 (en) * 2000-06-08 2003-09-02 Smith International, Inc. Cutting structure for roller cone drill bits
US6524366B1 (en) * 2000-09-22 2003-02-25 N.V. Union Miniere S.A. Method of forming nanograin tungsten carbide and recycling tungsten carbide
GB0029324D0 (en) * 2000-12-01 2001-01-17 Bbl Downhole Tools Ltd Shoe
US6725939B2 (en) * 2002-06-18 2004-04-27 Baker Hughes Incorporated Expandable centralizer for downhole tubulars
US20040108739A1 (en) * 2002-12-10 2004-06-10 Beeman Robert S. Whipstock retrieving overshot
US20050133276A1 (en) * 2003-12-17 2005-06-23 Azar Michael G. Bits and cutting structures
GB2414502B (en) * 2003-02-27 2007-10-17 Weatherford Lamb Drill shoe
US7322776B2 (en) * 2003-05-14 2008-01-29 Diamond Innovations, Inc. Cutting tool inserts and methods to manufacture
US7419086B2 (en) * 2003-07-14 2008-09-02 Honeywell International Inc. Low cost brazes for titanium
US7215612B2 (en) * 2003-07-30 2007-05-08 Hitachi, Ltd. Disk recording apparatus and disk recording method
US7395882B2 (en) * 2004-02-19 2008-07-08 Baker Hughes Incorporated Casing and liner drilling bits
US7117960B2 (en) * 2003-11-19 2006-10-10 James L Wheeler Bits for use in drilling with casting and method of making the same
US7624818B2 (en) * 2004-02-19 2009-12-01 Baker Hughes Incorporated Earth boring drill bits with casing component drill out capability and methods of use
US7360608B2 (en) * 2004-09-09 2008-04-22 Baker Hughes Incorporated Rotary drill bits including at least one substantially helically extending feature and methods of operation
US7398840B2 (en) * 2005-04-14 2008-07-15 Halliburton Energy Services, Inc. Matrix drill bits and method of manufacture
AT8743U1 (en) * 2005-10-19 2006-12-15 Ceratizit Austria Gmbh MILLING TOOL
GB0521693D0 (en) * 2005-10-25 2005-11-30 Reedhycalog Uk Ltd Representation of whirl in fixed cutter drill bits
US7757793B2 (en) * 2005-11-01 2010-07-20 Smith International, Inc. Thermally stable polycrystalline ultra-hard constructions
SE531412C2 (en) * 2005-12-30 2009-03-31 Sandvik Intellectual Property Rock drilling tools, rock drill bit and method for manufacturing a conical cavity of a rock drill bit
US7506698B2 (en) * 2006-01-30 2009-03-24 Smith International, Inc. Cutting elements and bits incorporating the same
US20070246224A1 (en) * 2006-04-24 2007-10-25 Christiaan Krauss Offset valve system for downhole drillable equipment
US7998573B2 (en) * 2006-12-21 2011-08-16 Us Synthetic Corporation Superabrasive compact including diamond-silicon carbide composite, methods of fabrication thereof, and applications therefor
US8074869B2 (en) * 2007-09-24 2011-12-13 Baker Hughes Incorporated System, method, and apparatus for reactive foil brazing of cutter components for fixed cutter bit
US9085939B2 (en) * 2007-11-14 2015-07-21 Baker Hughes Incorporated Earth-boring tools attachable to a casing string and methods for their manufacture
CN201152149Y (en) * 2007-12-04 2008-11-19 西南石油大学 Polycrystalline diamond compact bit possessing independent longitudinal back-up cutting structure
US7905279B2 (en) * 2008-04-15 2011-03-15 Baker Hughes Incorporated Combination whipstock and seal bore diverter system
US8025112B2 (en) * 2008-08-22 2011-09-27 Tdy Industries, Inc. Earth-boring bits and other parts including cemented carbide
US8162081B2 (en) * 2008-08-28 2012-04-24 Varel International Ind., L.P. Force balanced asymmetric drilling reamer and methods for force balancing
US8074749B2 (en) * 2009-09-11 2011-12-13 Weatherford/Lamb, Inc. Earth removal member with features for facilitating drill-through

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4869330A (en) * 1988-01-20 1989-09-26 Eastman Christensen Company Apparatus for establishing hydraulic flow regime in drill bits
US20070261890A1 (en) * 2006-05-10 2007-11-15 Smith International, Inc. Fixed Cutter Bit With Centrally Positioned Backup Cutter Elements
US20100166592A1 (en) * 2008-12-31 2010-07-01 Uno Timothy P Infiltration methods for forming drill bits
US20100307837A1 (en) * 2009-06-05 2010-12-09 Varel International, Ind., L.P. Casing bit and casing reamer designs

Also Published As

Publication number Publication date
CA2832481A1 (en) 2012-11-01
EP2702223A2 (en) 2014-03-05
EP2702223A4 (en) 2015-12-30
RU2013152354A (en) 2015-06-10
WO2012148704A2 (en) 2012-11-01
CN103492662A (en) 2014-01-01
US20110209922A1 (en) 2011-09-01
SG194123A1 (en) 2013-11-29

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