CA2657454A1 - Cutters for downhole cutting devices - Google Patents

Cutters for downhole cutting devices Download PDF

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Publication number
CA2657454A1
CA2657454A1 CA002657454A CA2657454A CA2657454A1 CA 2657454 A1 CA2657454 A1 CA 2657454A1 CA 002657454 A CA002657454 A CA 002657454A CA 2657454 A CA2657454 A CA 2657454A CA 2657454 A1 CA2657454 A1 CA 2657454A1
Authority
CA
Canada
Prior art keywords
cutter
cutting
cutting tool
width
section
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
CA002657454A
Other languages
French (fr)
Other versions
CA2657454C (en
Inventor
Calvin Stowe
James Mcnicol
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Baker Hughes Holdings LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2657454A1 publication Critical patent/CA2657454A1/en
Application granted granted Critical
Publication of CA2657454C publication Critical patent/CA2657454C/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/5673—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a non planar or non circular cutting face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00—Cutting or destroying pipes, packers, plugs, or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations

Abstract

Improved cutter design as well as an improved design for downhole cutters, such as mandrel cutters and rotary cutter mills. A cutter is described with a rectangular, rounded "lozenge" shape. The cutter presents a cross-sectional cutting area having a pair of curvilinear end sections (23) and an elongated central section (24). Preferably, the overall length of the cutter is 1.5 times the width. The cutter may also include a raised cutter edge (18) for chip breaking during cutting.

Claims (25)

1. A cutter for use upon a cutting arm of a downhole cutting device, the cutter comprising a cutter body having:

a first end section having a cutting face with an arcuate end wall;

a second end section having a cutting face with an arcuate end wall; and a central section interconnecting the first and second end sections, the central section having lateral sides that are substantially flat.
2. The cutter of claim 1 wherein the cutter body is fashioned of carbide.
3. The cutter of claim 1 wherein the cutter body is fashioned of PDC.
4. The cutter of claim 1 wherein the cutter body has a length measured from a tip of the first end section to a tip of the second end section and a width as measured from opposite lateral sides of the central section, and wherein the length of the cutter is greater than the width.
5. The cutter of claim 4 wherein the length of the cutter is approximately 1.5 times the width of the cutter.
6. The cutter of claim 1 wherein the cutter body presents a cutting face having a raised chip-breaker edge.
7. The cutter of claim 4 wherein the width of the cutter is approximately 3/8".
8. The cutter of claim 1 wherein the arcuate end walls of the first and second end sections are semi-circular.
9. The cutter of claim 1 wherein the arcuate end walls of the first and second end sections are arc segments.
10. A cutting tool for use in downhole cutting, the cutting tool comprising:

a cutting member for rotational cutting within an earth formation surrounding a wellbore;

at least one cutter secured to the cutting member, the cutter comprising a cutter body having:

a first end section having a cutting face with an arcuate end wall;

a second end section having a cuffing face with an arcuate end wall; and a central section interconnecting the first and second end sections, the central section having lateral sides that are substantially flat.
11. The cutting tool of claim 10 wherein the at least one cutter body is fashioned of carbide.
12. The cutting tool of claim 10 wherein the at least one cutter body is fashioned of PDC.
13. The cutting tool of claim 10 wherein there are multiple cutters secured to the cutting member.
14. The cutting tool of claim 10 wherein the at least one cutter has a length measured from a tip of the first end section to a tip of the second end section and a width as measured from opposite lateral sides of the central section, and wherein the length of the cutter is greater than the width.
15. The cutting tool of claim 14 wherein the length of each of said at least one cutter is approximately 1.5 times the width of said cutter.
16. The cutting tool of claim 10 wherein the cutter body of each said at least one cutter presents a cutting face having a raised chip-breaker edge.
17. The cutting tool of claim 14 wherein the width of said at least one cutter is approximately 3/8".
18. The cutting tool of claim 10 wherein the arcuate end walls of the first and second end sections are semi-circular.
19. The cutting tool of claim 10 wherein the arcuate end walls of the first and second end sections are arc segments.
20. The cutting tool of claim 10 wherein the cutting member comprises a blade on a rotary mill.
21. The cutting tool of claim 10 wherein the cutting member comprises a mandrel cutting knife.
22. A cutting tool for use in downhole cutting, the cutting tool comprising:

a cutting member for rotational cutting within an earth formation surrounding a wellbore;

at least one cutter secured to the cutting member, the cutter comprising a cutter body having:

a first end section having a curvilinear;

a second end section having a curvilinear end wall;

a central section interconnecting the first and second end sections, the central section having lateral sides that are substantially flat, and wherein the at least one cutter has a length measured from a tip of the first end section to a tip of the second end section and a width as measured from opposite lateral sides of the central section, and wherein the length of the cutter is greater than the width.
23. The cutting tool of claim 22 wherein the at least one cutter body is fashioned of carbide.
24. The cutting tool of claim 22 wherein the length of each of said at least one cutter is approximately 1.5 times the width of said cutter.
25. The cutting tool of claim 22 wherein the width of said at least one cutter is approximately 3/8".
CA2657454A 2006-07-07 2007-07-05 Cutters for downhole cutting devices Active CA2657454C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11/483,154 US7363992B2 (en) 2006-07-07 2006-07-07 Cutters for downhole cutting devices
US11/483,154 2006-07-07
PCT/US2007/072811 WO2008006010A2 (en) 2006-07-07 2007-07-05 Cutters for downhole cutting devices

Publications (2)

Publication Number Publication Date
CA2657454A1 true CA2657454A1 (en) 2008-01-10
CA2657454C CA2657454C (en) 2011-09-06

Family

ID=38895460

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2657454A Active CA2657454C (en) 2006-07-07 2007-07-05 Cutters for downhole cutting devices

Country Status (7)

Country Link
US (1) US7363992B2 (en)
AU (1) AU2007269124B2 (en)
CA (1) CA2657454C (en)
GB (1) GB2453472B (en)
NO (1) NO340001B1 (en)
RU (1) RU2403367C1 (en)
WO (1) WO2008006010A2 (en)

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US20050247486A1 (en) * 2004-04-30 2005-11-10 Smith International, Inc. Modified cutters
US8096372B2 (en) * 2006-07-24 2012-01-17 Smith International, Inc. Cutter geometry for increased bit life and bits incorporating the same
US8833492B2 (en) * 2008-10-08 2014-09-16 Smith International, Inc. Cutters for fixed cutter bits
US8087478B2 (en) * 2009-06-05 2012-01-03 Baker Hughes Incorporated Cutting elements including cutting tables with shaped faces configured to provide continuous effective positive back rake angles, drill bits so equipped and methods of drilling
US8887839B2 (en) * 2009-06-25 2014-11-18 Baker Hughes Incorporated Drill bit for use in drilling subterranean formations
RU2012103935A (en) 2009-07-08 2013-08-20 Бейкер Хьюз Инкорпорейтед CUTTING ELEMENT AND METHOD FOR ITS FORMATION
RU2012103934A (en) 2009-07-08 2013-08-20 Бейкер Хьюз Инкорпорейтед CUTTING ELEMENT FOR DRILLING BIT USED FOR DRILLING UNDERGROUND ROCKS
EP2459344A4 (en) * 2009-07-27 2013-10-02 Baker Hughes Inc Abrasive article and method of forming
US8689911B2 (en) * 2009-08-07 2014-04-08 Baker Hughes Incorporated Cutter and cutting tool incorporating the same
WO2011041685A2 (en) 2009-10-01 2011-04-07 Baker Hughes Incorporated Milling tool for establishing openings in wellbore obstructions
US8997899B2 (en) 2010-02-05 2015-04-07 Baker Hughes Incorporated Cutting element, cutter tool and method of cutting within a borehole
US8887838B2 (en) * 2010-02-05 2014-11-18 Baker Hughes Incorporated Cutting element and method of orienting
SA111320374B1 (en) 2010-04-14 2015-08-10 بيكر هوغيس انكوبوريتد Method Of Forming Polycrystalline Diamond From Derivatized Nanodiamond
EP2561171B1 (en) 2010-04-23 2018-01-10 Baker Hughes, a GE company, LLC Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
US8936109B2 (en) * 2010-06-24 2015-01-20 Baker Hughes Incorporated Cutting elements for cutting tools
US8327957B2 (en) * 2010-06-24 2012-12-11 Baker Hughes Incorporated Downhole cutting tool having center beveled mill blade
US8434572B2 (en) 2010-06-24 2013-05-07 Baker Hughes Incorporated Cutting elements for downhole cutting tools
US8985246B2 (en) * 2010-09-28 2015-03-24 Baker Hughes Incorporated Subterranean cutting tool structure tailored to intended use
US9243452B2 (en) 2011-04-22 2016-01-26 Baker Hughes Incorporated Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
US9650837B2 (en) 2011-04-22 2017-05-16 Baker Hughes Incorporated Multi-chamfer cutting elements having a shaped cutting face and earth-boring tools including such cutting elements
US9428966B2 (en) 2012-05-01 2016-08-30 Baker Hughes Incorporated Cutting elements for earth-boring tools, earth-boring tools including such cutting elements, and related methods
US9482057B2 (en) 2011-09-16 2016-11-01 Baker Hughes Incorporated Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
US8991525B2 (en) 2012-05-01 2015-03-31 Baker Hughes Incorporated Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods
US9103174B2 (en) 2011-04-22 2015-08-11 Baker Hughes Incorporated Cutting elements for earth-boring tools, earth-boring tools including such cutting elements and related methods
US9151120B2 (en) 2012-06-04 2015-10-06 Baker Hughes Incorporated Face stabilized downhole cutting tool
US9388639B2 (en) 2012-10-26 2016-07-12 Baker Hughes Incorporated Rotatable cutting elements and related earth-boring tools and methods
US9303461B2 (en) * 2012-10-26 2016-04-05 Baker Hughes Incorporated Cutting elements having curved or annular configurations for earth-boring tools, earth-boring tools including such cutting elements, and related methods
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
US10508503B2 (en) 2016-09-23 2019-12-17 Baker Hughes, A Ge Company, Llc Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools
US11098532B2 (en) 2017-09-05 2021-08-24 Schlumberger Technology Corporation Cutting elements having non-planar surfaces and tools incorporating the same
WO2020117350A1 (en) 2018-12-06 2020-06-11 Halliburton Energy Services, Inc. Inner cutter for drilling
USD911399S1 (en) 2018-12-06 2021-02-23 Halliburton Energy Services, Inc. Innermost cutter for a fixed-cutter drill bit
WO2021142188A1 (en) * 2020-01-09 2021-07-15 Schlumberger Technology Corporation Cutting element with nonplanar face to improve cutting efficiency and durability
US11719050B2 (en) 2021-06-16 2023-08-08 Baker Hughes Oilfield Operations Llc Cutting elements for earth-boring tools and related earth-boring tools and methods
US11920409B2 (en) 2022-07-05 2024-03-05 Baker Hughes Oilfield Operations Llc Cutting elements, earth-boring tools including the cutting elements, and methods of forming the earth-boring tools

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US6009963A (en) * 1997-01-14 2000-01-04 Baker Hughes Incorporated Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency
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Also Published As

Publication number Publication date
NO20090187L (en) 2009-04-02
WO2008006010A2 (en) 2008-01-10
NO340001B1 (en) 2017-02-27
AU2007269124B2 (en) 2011-07-21
US7363992B2 (en) 2008-04-29
GB0900556D0 (en) 2009-02-11
RU2009103817A (en) 2010-08-20
CA2657454C (en) 2011-09-06
AU2007269124A1 (en) 2008-01-10
WO2008006010A3 (en) 2008-05-08
GB2453472B (en) 2011-05-25
US20080006446A1 (en) 2008-01-10
GB2453472A (en) 2009-04-08
RU2403367C1 (en) 2010-11-10

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