EP2642063A1 - Trépan de forage par percussion - Google Patents

Trépan de forage par percussion Download PDF

Info

Publication number
EP2642063A1
EP2642063A1 EP12160762.6A EP12160762A EP2642063A1 EP 2642063 A1 EP2642063 A1 EP 2642063A1 EP 12160762 A EP12160762 A EP 12160762A EP 2642063 A1 EP2642063 A1 EP 2642063A1
Authority
EP
European Patent Office
Prior art keywords
face
button
working face
drill bit
gauge
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.)
Withdrawn
Application number
EP12160762.6A
Other languages
German (de)
English (en)
Inventor
Kenneth Larsson
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.)
Sandvik Intellectual Property AB
Original Assignee
Sandvik Intellectual Property AB
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
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=47915194&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP2642063(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sandvik Intellectual Property AB filed Critical Sandvik Intellectual Property AB
Priority to EP12160762.6A priority Critical patent/EP2642063A1/fr
Priority to PCT/EP2013/055613 priority patent/WO2013139755A2/fr
Priority to US14/386,810 priority patent/US20150041223A1/en
Priority to CA2867225A priority patent/CA2867225A1/fr
Priority to RU2014142447A priority patent/RU2014142447A/ru
Priority to BR112014023136A priority patent/BR112014023136A2/pt
Priority to AU2013234472A priority patent/AU2013234472A1/en
Priority to KR1020147028619A priority patent/KR20140143402A/ko
Priority to PE2014001458A priority patent/PE20142413A1/es
Priority to MX2014011175A priority patent/MX2014011175A/es
Priority to CN201380015884.1A priority patent/CN104302862A/zh
Publication of EP2642063A1 publication Critical patent/EP2642063A1/fr
Priority to CL2014002496A priority patent/CL2014002496A1/es
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • 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
    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1092—Gauge section of drill bits

Definitions

  • Buttons or inserts for bits of this type generally have a cylindrical body with opposing ends, one of which comprises a working face for the button that is shaped so as to protrude from the body of the button. More particularly, this working face is generally hemispherical (domed) or parabolic (ballistic) in shape.
  • gauge buttons have a diameter which is larger than or equal to face buttons. Examples of this can be found in US 3,519,092 , US 3,997,011 and US 4,572,307 amongst others, as well as being illustrated in Figure 2 herein.
  • a problem with bits of the above described type is that an extent of reflected energy (ie. reflected from the rock face) is so great that this can damage the bit and other associated equipment.
  • the invention may be said to reside in a drill bit for use in percussive drilling, the drill bit comprising a body having a front face, at least one button on the front face (hereinafter 'face button'), and a plurality of gauge buttons, each of the buttons having a working face, at least a portion of at least one gauge button working face having a curvature which deviates further from being flat (ie. is more pronounced, pointed or sharper) than a curvature of any curved portion of at least one face button working face so that said portion of at least one gauge button working face projects further than said portion of at least one face button working face.
  • working face' should be taken to mean the part of each button which will interact with the rock during drilling.
  • said portion of at least one gauge button working face projects further than said portion of at least one face button working face.
  • At least a portion of the working face of each of the face and gauge buttons is curved.
  • each portion may blend into adjacent portions.
  • the entirety of the working face of each of the face and gauge buttons is curved.
  • the curvature of the working face of at least one gauge button is more pronounced than the curvature of the working face of at least one face button.
  • the or each gauge button working face projects further than the or each face button working face.
  • a radius of curvature of the working face of at least one face button is greater than a radius of curvature of the working face of at least one gauge button.
  • each of the face and gauge buttons includes a substantially cylindrical body.
  • the working face of at least one gauge button is substantially hemispherical (or domed).
  • the working face of at least one gauge button is substantially parabolic (or ballistic) in shape.
  • the working face of at least one face button is shaped like a segment of a hemisphere (or dome).
  • the working face of at least one face button is shaped like a segment of a parabola (or ballistic shape).
  • the cylindrical body of at least one face button has a radius which is different to a radius of curvature of the curved portion of the working face thereof.
  • the radius of the cylindrical body of at least one face button is less than the radius of curvature of the curved portion of the working face thereof.
  • the cylindrical body of at least one gauge button has a radius which is substantially equal or at least similar to a radius of curvature of the curved portion of the working face thereof.
  • the drill bit comprises a plurality of face buttons.
  • the working face of at least one face button is or is approaching substantially flat.
  • the invention may be said to reside in a drill bit for use in percussive drilling, the drill bit comprising a body having a front face, at least one button on the front face (hereinafter 'face button'), and a plurality of gauge buttons, each of the buttons having a working face, the drill bit being characterised in that at least a portion of at least one gauge button working face has a curvature with a peak that is more projecting by comparison to a peak of any curved portion of at least one face button working face.
  • the or each face button is offset with respect to the central axis of the bit.
  • the drill bit (1) for use in percussive drilling.
  • the drill bit (1) comprises a bit body (2) of an appropriate tool steel grade having a front face (4) which extends generally transversely relative to a longitudinal axis of the bit body (2), and a rear threaded portion (6) so the drill bit (1) can be threadably attached to a drill rod (not illustrated) having corresponding threads.
  • gauge buttons (20) Located around the periphery of the face (4) is a plurality of gauge buttons (20) inclined at an angle with respect to the longitudinal axis of the bit (1).
  • the gauge buttons (20) project and protrude to such an extent that the diameter of the drill hole is defined by these.
  • buttons (10 and 20) are either press-fit or shrink-fit into the bit body (2), and so are commonly and even interchangeably referred to as inserts.
  • the buttons (10 and 20) are formed of a material which is harder than the material of the bit body (2).
  • Each button (10 and 20) has a cylindrical body with a working face (10a) in one case, and (20a) in the other, the working face being the part of each button (10 and 20) which will interact with the rock during drilling.
  • each of these working faces (10a and 20a) is convexly curved.
  • the projecting distance F of the face button working face (10a) and the projecting distance G of the gauge button working face (20a) are measured from the associated body portion as shown in Fig. 1 , wherein G is greater than F.
  • Each gauge button (20) working face (20a) has a curvature which is more pronounced than a curvature of at least one face button (10) working face (10a). That is to say, a radius of curvature (RF) of the working face (10a) of the face buttons (10), is significantly greater than a radius of curvature (RG) of the working face (20a) of the gauge buttons (20).
  • the radius of curvature of the working face (RF) is significantly greater than a radius (R') of the cylindrical body thereof.
  • the radius of curvature of the working face (RG) is generally the same as a radius (R") of the cylindrical body thereof.
  • the radius of curvature (RF) of the working face (10a) may be so great that the working face approaches, or is, a substantially flat surface, the face button (10) working face (10a) thereby having no or minimal projection, and certainly less projection that the gauge button (20) working face (20a).
  • Tests which have been carried out indicate that the force required to penetrate the rock is less with a more pointed button such as the gauge buttons (20), than with a blunter one such as the face buttons (10).
  • the working face (20a) of the gauge buttons (20) is more pointed than the working face (10a) of the face buttons (10), as less force will be required for penetration, resulting in less wastage of percussive energy and less reflected energy in turn. Less reflected energy means less damage to drill and other associated equipment.
  • a further advantage of the above described drill bit (1) is higher drill speed and improved drilling efficiency when compared with bits of the prior art, such as that illustrated at Figure 2 .
  • All gauge buttons in the drill bit may be substantially identical in shape. All face buttons in said or a drill bit may be substantially identical in shape.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling Tools (AREA)
EP12160762.6A 2012-03-22 2012-03-22 Trépan de forage par percussion Withdrawn EP2642063A1 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
EP12160762.6A EP2642063A1 (fr) 2012-03-22 2012-03-22 Trépan de forage par percussion
CN201380015884.1A CN104302862A (zh) 2012-03-22 2013-03-19 用于冲击钻削的钻头
AU2013234472A AU2013234472A1 (en) 2012-03-22 2013-03-19 Drill bit for percussive drilling
US14/386,810 US20150041223A1 (en) 2012-03-22 2013-03-19 Drill bit for percussive drilling
CA2867225A CA2867225A1 (fr) 2012-03-22 2013-03-19 Trepan pour forage par percussion
RU2014142447A RU2014142447A (ru) 2012-03-22 2013-03-19 Буровое долото для ударного бурения
BR112014023136A BR112014023136A2 (pt) 2012-03-22 2013-03-19 Broca de perfuração para procedimento de perfuração percussiva
PCT/EP2013/055613 WO2013139755A2 (fr) 2012-03-22 2013-03-19 Trépan pour forage par percussion
KR1020147028619A KR20140143402A (ko) 2012-03-22 2013-03-19 충격 드릴링용 드릴 비트
PE2014001458A PE20142413A1 (es) 2012-03-22 2013-03-19 Barrena de perforacion para perforacion por percusion
MX2014011175A MX2014011175A (es) 2012-03-22 2013-03-19 Trepano para perforacion por percusion.
CL2014002496A CL2014002496A1 (es) 2012-03-22 2014-09-22 Barrena de perforación para su uso en perforación por percusión, comprende un cuerpo, un botón en la cara frontal y una pluralidad de botones en la periferia con una cara de trabajo que tiene una curvatura y que se proyecta más que la parte de la cara de trabajo del botón de cara.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP12160762.6A EP2642063A1 (fr) 2012-03-22 2012-03-22 Trépan de forage par percussion

Publications (1)

Publication Number Publication Date
EP2642063A1 true EP2642063A1 (fr) 2013-09-25

Family

ID=47915194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12160762.6A Withdrawn EP2642063A1 (fr) 2012-03-22 2012-03-22 Trépan de forage par percussion

Country Status (12)

Country Link
US (1) US20150041223A1 (fr)
EP (1) EP2642063A1 (fr)
KR (1) KR20140143402A (fr)
CN (1) CN104302862A (fr)
AU (1) AU2013234472A1 (fr)
BR (1) BR112014023136A2 (fr)
CA (1) CA2867225A1 (fr)
CL (1) CL2014002496A1 (fr)
MX (1) MX2014011175A (fr)
PE (1) PE20142413A1 (fr)
RU (1) RU2014142447A (fr)
WO (1) WO2013139755A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109441359A (zh) * 2019-01-04 2019-03-08 西南石油大学 针对页岩的冲击物探钻头的布齿结构

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519092A (en) 1968-09-16 1970-07-07 Kennametal Inc Percussion bit
US3997011A (en) 1975-05-27 1976-12-14 Staroba Otto R Button drill bit structure
EP0140849A2 (fr) * 1983-09-20 1985-05-08 Santrade Ltd. Trépan de roche
US4572307A (en) 1983-04-05 1986-02-25 Santrade Limited Rock drill
US4607712A (en) * 1983-12-19 1986-08-26 Santrade Limited Rock drill bit
GB2326897A (en) * 1997-06-30 1999-01-06 Smith International Improvements in or relating to drill bits
US5947215A (en) 1997-11-06 1999-09-07 Sandvik Ab Diamond enhanced rock drill bit for percussive drilling
US20100025114A1 (en) * 2008-01-22 2010-02-04 Brady William J PCD Percussion Drill Bit

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9502857A (pt) * 1995-06-20 1997-09-23 Sandvik Ab Ponteira para perfuração de rocha
US6196340B1 (en) * 1997-11-28 2001-03-06 U.S. Synthetic Corporation Surface geometry for non-planar drill inserts
US6655480B1 (en) * 2000-10-05 2003-12-02 Kennametal Inc. Cutting insert for percussion drill bit
SE523913C2 (sv) * 2002-04-04 2004-06-01 Sandvik Ab Slående borrkrona och ett stift därför
SE526344C2 (sv) * 2003-12-09 2005-08-30 Sandvik Intellectual Property Bergborrkrona
SE0402026L (sv) * 2004-08-17 2006-01-17 Sandvik Intellectual Property Bergborrkrona och gängförband för slående bergborrning
US7527110B2 (en) * 2006-10-13 2009-05-05 Hall David R Percussive drill bit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519092A (en) 1968-09-16 1970-07-07 Kennametal Inc Percussion bit
US3997011A (en) 1975-05-27 1976-12-14 Staroba Otto R Button drill bit structure
US4572307A (en) 1983-04-05 1986-02-25 Santrade Limited Rock drill
EP0140849A2 (fr) * 1983-09-20 1985-05-08 Santrade Ltd. Trépan de roche
US4607712A (en) * 1983-12-19 1986-08-26 Santrade Limited Rock drill bit
GB2326897A (en) * 1997-06-30 1999-01-06 Smith International Improvements in or relating to drill bits
US5947215A (en) 1997-11-06 1999-09-07 Sandvik Ab Diamond enhanced rock drill bit for percussive drilling
US20100025114A1 (en) * 2008-01-22 2010-02-04 Brady William J PCD Percussion Drill Bit

Also Published As

Publication number Publication date
CN104302862A (zh) 2015-01-21
WO2013139755A2 (fr) 2013-09-26
BR112014023136A2 (pt) 2017-08-22
CL2014002496A1 (es) 2015-01-16
CA2867225A1 (fr) 2013-09-26
AU2013234472A1 (en) 2014-09-25
RU2014142447A (ru) 2016-05-20
KR20140143402A (ko) 2014-12-16
PE20142413A1 (es) 2015-01-21
US20150041223A1 (en) 2015-02-12
MX2014011175A (es) 2014-11-14
WO2013139755A3 (fr) 2014-04-10

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