WO2009046075A3 - Drill bits and tools for subterranean drilling - Google Patents

Drill bits and tools for subterranean drilling Download PDF

Info

Publication number
WO2009046075A3
WO2009046075A3 PCT/US2008/078407 US2008078407W WO2009046075A3 WO 2009046075 A3 WO2009046075 A3 WO 2009046075A3 US 2008078407 W US2008078407 W US 2008078407W WO 2009046075 A3 WO2009046075 A3 WO 2009046075A3
Authority
WO
WIPO (PCT)
Prior art keywords
extension pad
blade
tools
drill bits
chordal
Prior art date
Application number
PCT/US2008/078407
Other languages
French (fr)
Other versions
WO2009046075A2 (en
WO2009046075A4 (en
Inventor
Stephen J Ernst
Juan Miguel Bilen
Original Assignee
Baker Hughes Inc
Stephen J Ernst
Juan Miguel Bilen
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 Baker Hughes Inc, Stephen J Ernst, Juan Miguel Bilen filed Critical Baker Hughes Inc
Publication of WO2009046075A2 publication Critical patent/WO2009046075A2/en
Publication of WO2009046075A3 publication Critical patent/WO2009046075A3/en
Publication of WO2009046075A4 publication Critical patent/WO2009046075A4/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
    • E21B10/00—Drill bits
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits

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)
  • Earth Drilling (AREA)

Abstract

A drill bit (10) includes at least one extension pad (30) extending rotationally forward backward of an associated blade (24) in a gage region (23) of the bit body. The extension pad includes a circumferential bearing surface (32) that extends the circumferential bearing surface of the associated blade and reduces the chordal drop between any blade havi an extension pad associated therewith and a circumferentially adjacent blade toward which the extension pad protrudes. A drill bit that reduces a chordal drop segment extending across a junk slot is also disclosed.
PCT/US2008/078407 2007-10-01 2008-10-01 Drill bits and tools for subterranean drilling WO2009046075A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/865,258 2007-10-01
US11/865,258 US20090084607A1 (en) 2007-10-01 2007-10-01 Drill bits and tools for subterranean drilling

Publications (3)

Publication Number Publication Date
WO2009046075A2 WO2009046075A2 (en) 2009-04-09
WO2009046075A3 true WO2009046075A3 (en) 2009-06-18
WO2009046075A4 WO2009046075A4 (en) 2009-08-20

Family

ID=40506908

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/078407 WO2009046075A2 (en) 2007-10-01 2008-10-01 Drill bits and tools for subterranean drilling

Country Status (2)

Country Link
US (1) US20090084607A1 (en)
WO (1) WO2009046075A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8079430B2 (en) * 2009-04-22 2011-12-20 Baker Hughes Incorporated Drill bits and tools for subterranean drilling, methods of manufacturing such drill bits and tools and methods of off-center drilling
WO2011038383A2 (en) 2009-09-28 2011-03-31 Bake Hughes Incorporated Earth-boring tools, methods of making earth-boring tools and methods of drilling with earth-boring tools
US10392867B2 (en) 2017-04-28 2019-08-27 Baker Hughes, A Ge Company, Llc Earth-boring tools utilizing selective placement of shaped inserts, and related methods
US10697248B2 (en) * 2017-10-04 2020-06-30 Baker Hughes, A Ge Company, Llc Earth-boring tools and related methods
US10954721B2 (en) 2018-06-11 2021-03-23 Baker Hughes Holdings Llc Earth-boring tools and related methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722499A (en) * 1995-08-22 1998-03-03 Smith International, Inc. Multiple diamond layer polycrystalline diamond composite cutters
EP0874127A2 (en) * 1997-04-21 1998-10-28 Camco International (UK) Limited Rotary drill bits with blades and nozzles
GB2329203A (en) * 1997-09-08 1999-03-17 Baker Hughes Inc Varying cutter chamfer geometry and backrake to optimise bit performance
EP0974730A2 (en) * 1998-07-22 2000-01-26 Camco International (UK) Limited Rotary dag bit

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5010789A (en) * 1989-02-21 1991-04-30 Amoco Corporation Method of making imbalanced compensated drill bit
US5042596A (en) * 1989-02-21 1991-08-27 Amoco Corporation Imbalance compensated drill bit
CA1333282C (en) * 1989-02-21 1994-11-29 J. Ford Brett Imbalance compensated drill bit
US4932484A (en) * 1989-04-10 1990-06-12 Amoco Corporation Whirl resistant bit
US4982802A (en) * 1989-11-22 1991-01-08 Amoco Corporation Method for stabilizing a rotary drill string and drill bit
GB8926688D0 (en) * 1989-11-25 1990-01-17 Reed Tool Co Improvements in or relating to rotary drill bits
US5186268A (en) * 1991-10-31 1993-02-16 Camco Drilling Group Ltd. Rotary drill bits
EP0569663A1 (en) * 1992-05-15 1993-11-18 Baker Hughes Incorporated Improved anti-whirl drill bit
US5558170A (en) * 1992-12-23 1996-09-24 Baroid Technology, Inc. Method and apparatus for improving drill bit stability
US5549171A (en) * 1994-08-10 1996-08-27 Smith International, Inc. Drill bit with performance-improving cutting structure
EP0707132B1 (en) * 1994-10-15 2003-08-06 Camco Drilling Group Limited Rotary drill bit
US5996713A (en) * 1995-01-26 1999-12-07 Baker Hughes Incorporated Rolling cutter bit with improved rotational stabilization
US5992548A (en) * 1995-08-15 1999-11-30 Diamond Products International, Inc. Bi-center bit with oppositely disposed cutting surfaces
US6089336A (en) * 1995-10-10 2000-07-18 Camco International (Uk) Limited Rotary drill bits
US5904213A (en) * 1995-10-10 1999-05-18 Camco International (Uk) Limited Rotary drill bits
US5794725A (en) * 1996-04-12 1998-08-18 Baker Hughes Incorporated Drill bits with enhanced hydraulic flow characteristics
US5967247A (en) * 1997-09-08 1999-10-19 Baker Hughes Incorporated Steerable rotary drag bit with longitudinally variable gage aggressiveness
US6321862B1 (en) * 1997-09-08 2001-11-27 Baker Hughes Incorporated Rotary drill bits for directional drilling employing tandem gage pad arrangement with cutting elements and up-drill capability
US6260636B1 (en) * 1999-01-25 2001-07-17 Baker Hughes Incorporated Rotary-type earth boring drill bit, modular bearing pads therefor and methods
US6834733B1 (en) * 2002-09-04 2004-12-28 Varel International, Ltd. Spiral wave bladed drag bit
US8061453B2 (en) * 2006-05-26 2011-11-22 Smith International, Inc. Drill bit with asymmetric gage pad configuration
US20070278014A1 (en) * 2006-05-30 2007-12-06 Smith International, Inc. Drill bit with plural set and single set blade configuration

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5722499A (en) * 1995-08-22 1998-03-03 Smith International, Inc. Multiple diamond layer polycrystalline diamond composite cutters
EP0874127A2 (en) * 1997-04-21 1998-10-28 Camco International (UK) Limited Rotary drill bits with blades and nozzles
GB2329203A (en) * 1997-09-08 1999-03-17 Baker Hughes Inc Varying cutter chamfer geometry and backrake to optimise bit performance
EP0974730A2 (en) * 1998-07-22 2000-01-26 Camco International (UK) Limited Rotary dag bit

Also Published As

Publication number Publication date
WO2009046075A2 (en) 2009-04-09
US20090084607A1 (en) 2009-04-02
WO2009046075A4 (en) 2009-08-20

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