GB2579733A - Earth-boring tools including cutting element profiles configured to reduce work rates - Google Patents

Earth-boring tools including cutting element profiles configured to reduce work rates Download PDF

Info

Publication number
GB2579733A
GB2579733A GB2001927.9A GB202001927A GB2579733A GB 2579733 A GB2579733 A GB 2579733A GB 202001927 A GB202001927 A GB 202001927A GB 2579733 A GB2579733 A GB 2579733A
Authority
GB
United Kingdom
Prior art keywords
rotation
axis
earth
profile
boring tool
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Withdrawn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
GB2001927.9A
Other versions
GB202001927D0 (en
Inventor
Nissley Travis
Rodney Boehm Alexander
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
Baker Hughes Inc
Baker Hughes a GE Co LLC
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, Baker Hughes a GE Co LLC filed Critical Baker Hughes Inc
Publication of GB202001927D0 publication Critical patent/GB202001927D0/en
Publication of GB2579733A publication Critical patent/GB2579733A/en
Withdrawn legal-status Critical Current

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
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other 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
    • 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
    • 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
    • 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

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)
  • Drilling Tools (AREA)

Abstract

Earth-boring tools may include a body including blades projecting therefrom, an axis of rotation, and cutting elements secured to the blades. A profile of the cutting elements intersecting outermost points of cutting faces of the cutting elements as viewed projected rotationally onto a plane may be parabolic from immediately proximate the axis of rotation to a nose point at which a slope of the profile is such that an angle between the profile and a plane perpendicular to the axis of rotation is about 0°. In other embodiments, a first section of the profile may extend at a first slope, and a second section of the profile may extend at a second, different slope. In still other embodiments, a tangent line to the profile may be oriented at an angle of at least 15° at a location proximate to the axis of rotation.

Claims (20)

1. What is claimed is: 1. An earth-boring tool comprising: a body comprising blades projecting therefrom, the blades extending generally radially outwardly from an axis of rotation of the tool; and cutting elements secured to the blades; wherein a profile of the cutting elements secured to the blades intersecting outermost points of cutting faces of the cutting elements as viewed projected rotationally onto a plane, within which an axis of rotation of the body is located, is parabolic from immediately proximate the axis of rotation to a nose point at which a slope of the profile is such that an angle between the profile and a plane perpendicular to the axis of rotation is about 0°.
2. The earth-boring tool of claim 1, wherein a slope of the profile proximate to the axis of rotation of the body is such that an angle between the profile and a plane perpendicular to the axis of rotation is at least about 15° .
3. The earth-boring tool of claim 1 or claim 2, wherein a slope of the profile proximate to the axis of rotation of the body is such that an angle between the profile and a plane perpendicular to the axis of rotation is about 35° or less.
4. The earth-boring tool of any one of claims 1 through 3, wherein the nose point is located at least one-half of a radius of the body from the axis of rotation.
5. The earth-boring tool of any one of claims 1 through 4, wherein the nose point is located at less than three-fourths of a radius of the body from the axis of rotation .
6. The earth-boring tool of any one of claims 1 through 5, wherein surfaces of the blades as projected onto the plane perpendicular to the direction of rotation of the blades comprise a plurality of line segments, each line segment extending tangent to a parabolic curve extending from proximate to the axis of rotation to proximate to the nose point.
7. The earth-boring tool of claim 6, wherein a number of the line segments is at least five.
8 An earth-boring tool comprising: a body comprising blades extending outward from a remainder of the body; and cutting elements secured to the blades; wherein a first section of a profile of a face formed by a least squares fit to outermost points of cutting faces of the cutting elements secured to the blades as viewed projected rotationally onto a plane, within which plane an axis of rotation of the body is located, may be linear and may extend at a first slope relative to a plane perpendicular to the axis of rotation of the body from proximate to the axis of rotation of the body radially outward; wherein a second section of the profile of the face surrounding and extending radially outward from the first section may be linear and may extend at a second, different slope relative to the plane perpendicular to the axis of rotation of the body; and wherein a third section of the profile may be located radially outward from the second section, the third section arcing from the second slope away from a leading end of the body.
9. The earth-boring tool of claim 8, wherein the first slope is two to four times as great as the second slope relative to the plane perpendicular to the axis of rotation of the body.
10. The earth-boring tool of claim 8 or claim 9, wherein the first slope is such that an angle between the first section and a plane perpendicular to the axis of rotation is between about 10° and about 35° relative to the plane perpendicular to an axis of rotation of the body.
11. The earth-boring tool of any one of claims 8 through 10, wherein the second slope is such that an angle between the second section and a plane perpendicular to the axis of rotation is between about 10° and about 20° relative to the plane perpendicular to the axis of rotation of the body.
12. The earth-boring tool of any one of claims 8 through 11, wherein a transition between the first slope and the second slope occurs a radial distance at least about one-half of a radial distance occupied by the first and second slopes .
13. The earth-boring tool of any one of claims 8 through 12, wherein a transition between the first slope and the second slope occurs a radial distance less than about three- fourths of a radial distance occupied by the first and second slopes.
14. An earth-boring tool comprising: a body comprising blades extending outward from a remainder of the body; and cutting elements secured to the blades; wherein a profile formed by a least squares fit to outermost points of cutting faces of the cutting elements secured is oriented at an angle of at least 15° relative to a plane perpendicular to an axis of rotation of the body at a location proximate to an axis of rotation of the body.
15. The earth-boring tool of claim 14, the profile is oriented at an angle of about 30° or less relative to the plane perpendicular to the axis of rotation at the location proximate to the axis of rotation.
16. The earth-boring tool of claim 14 or claim 15, wherein the profile is parabolic from immediately proximate the axis of rotation to a nose point at which a slope of the profile is such that an angle between a line tangent to the profile and a plane perpendicular to the axis of rotation is about 0°.
17. The earth-boring tool of claim 16, wherein the nose point is located at least one-half of a radius of the body from the axis of rotation.
18. The earth-boring tool of claim 16 or claim 17, wherein the nose point is located at less than three-fourths of a radius of the body from the axis of rotation.
19. The earth-boring tool of any one of claims 14 through 18, wherein surfaces of the blades as projected onto a plane perpendicular to a direction of rotation of the blades comprise a plurality of line segments, each line segment extending tangent to a parabolic curve extending from proximate to the axis of rotation to proximate to the nose point.
20. The earth-boring tool of claim 19, wherein a number of the line segments is at least five.
GB2001927.9A 2017-07-28 2018-07-26 Earth-boring tools including cutting element profiles configured to reduce work rates Withdrawn GB2579733A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762538320P 2017-07-28 2017-07-28
PCT/US2018/043941 WO2019023485A1 (en) 2017-07-28 2018-07-26 Earth-boring tools including cutting element profiles configured to reduce work rates

Publications (2)

Publication Number Publication Date
GB202001927D0 GB202001927D0 (en) 2020-03-25
GB2579733A true GB2579733A (en) 2020-07-01

Family

ID=65037716

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2001927.9A Withdrawn GB2579733A (en) 2017-07-28 2018-07-26 Earth-boring tools including cutting element profiles configured to reduce work rates

Country Status (8)

Country Link
US (1) US20190032411A1 (en)
CN (1) CN111032991A (en)
BR (1) BR112020001731A2 (en)
CA (1) CA3071386A1 (en)
GB (1) GB2579733A (en)
MX (1) MX2020001099A (en)
NO (1) NO20200214A1 (en)
WO (1) WO2019023485A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111520079A (en) * 2020-06-23 2020-08-11 西南石油大学 PDC drill bit blade with crown profile offset

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090166091A1 (en) * 1998-08-31 2009-07-02 Halliburton Energy Services, Inc. Drill bit and design method for optimizing distribution of individual cutter forces, torque, work, or power
US20100175930A1 (en) * 2009-01-09 2010-07-15 Baker Hughes Incorporated Drill Bit With A Hybrid Cutter Profile
US8689908B2 (en) * 2007-12-10 2014-04-08 Smith International, Inc. Drill bit having enhanced stabilization features and method of use thereof
US8763729B2 (en) * 2008-04-14 2014-07-01 Smith International, Inc. Percussion drilling assembly and hammer bit with gage and outer row reinforcement
US20160177629A1 (en) * 2014-12-22 2016-06-23 Smith International, Inc. Drill bits with core feature for directional drilling applications and methods of use thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2974093A1 (en) * 2015-03-25 2016-09-29 Halliburton Energy Services, Inc. Adjustable depth of cut control for a downhole drilling tool
CN204920801U (en) * 2015-09-09 2015-12-30 中国石油集团渤海石油装备制造有限公司 Drilling system's PDC drill bit is fit for spinning
CN206233859U (en) * 2016-08-31 2017-06-09 四川川石·克锐达金刚石钻头有限公司 A kind of PDC drill bit suitable for directed drilling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090166091A1 (en) * 1998-08-31 2009-07-02 Halliburton Energy Services, Inc. Drill bit and design method for optimizing distribution of individual cutter forces, torque, work, or power
US8689908B2 (en) * 2007-12-10 2014-04-08 Smith International, Inc. Drill bit having enhanced stabilization features and method of use thereof
US8763729B2 (en) * 2008-04-14 2014-07-01 Smith International, Inc. Percussion drilling assembly and hammer bit with gage and outer row reinforcement
US20100175930A1 (en) * 2009-01-09 2010-07-15 Baker Hughes Incorporated Drill Bit With A Hybrid Cutter Profile
US20160177629A1 (en) * 2014-12-22 2016-06-23 Smith International, Inc. Drill bits with core feature for directional drilling applications and methods of use thereof

Also Published As

Publication number Publication date
CA3071386A1 (en) 2019-01-31
CN111032991A (en) 2020-04-17
GB202001927D0 (en) 2020-03-25
NO20200214A1 (en) 2020-02-19
MX2020001099A (en) 2020-08-06
BR112020001731A2 (en) 2020-07-21
US20190032411A1 (en) 2019-01-31
WO2019023485A1 (en) 2019-01-31

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)