WO2008100455A1 - Outil bilame rotatif - Google Patents

Outil bilame rotatif Download PDF

Info

Publication number
WO2008100455A1
WO2008100455A1 PCT/US2008/001764 US2008001764W WO2008100455A1 WO 2008100455 A1 WO2008100455 A1 WO 2008100455A1 US 2008001764 W US2008001764 W US 2008001764W WO 2008100455 A1 WO2008100455 A1 WO 2008100455A1
Authority
WO
WIPO (PCT)
Prior art keywords
cutting
bit
axis
gauge
back rake
Prior art date
Application number
PCT/US2008/001764
Other languages
English (en)
Inventor
Robert M. Welch
Floyd C. Felderhoff
Michael L. Doster
Original Assignee
Baker Hughes Incorporated
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 Incorporated filed Critical Baker Hughes Incorporated
Priority to AT08725403T priority Critical patent/ATE534797T1/de
Priority to EP08725403A priority patent/EP2118431B1/fr
Priority to MX2009008257A priority patent/MX2009008257A/es
Publication of WO2008100455A1 publication Critical patent/WO2008100455A1/fr

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
    • E21B10/46—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
    • E21B10/42—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

Definitions

  • the present invention relates in general to rotary drag bits and, in particular, to an improved system, method, and apparatus for a rotary drag bit having gauge cutting elements configured at large back rake angles.
  • Earth-boring bits of the fixed cutter variety commonly referred to as drag bits, have no moving parts and employ an array of hard inserts to scrape and shear formation material as the bit is rotated in the borehole. Inserts on prior art fixed cutter bits are typically aligned such that the inserts scrape the material from the borehole bottom.
  • the longitudinal axis of the insert is typically at a small acute angle (e.g., 0° to 30°) relative to the bit face.
  • a small acute angle e.g., 0° to 30°
  • Such an alignment places the cutting face of a cylindrically-shaped insert nearly perpendicular to the borehole bottom.
  • the contact area between the cutting element and the formation starts out very small but increases rapidly as penetration or depth of cut becomes deeper.
  • Embodiments of a system, method, and apparatus for a fixed cutter rotary drill bit having gauge cutting elements at large back rake angles are disclosed.
  • the gauge is located at the outer diameter side wall portion of the bit that extends from the cutting end. The gauge and its cutting components contact the side wall of the bore hole during drilling operations.
  • the gauge cutting elements may be configured at a back rake angle in a range of about 40° to 70°.
  • a very high back rake angle helps ensure compressive cutter loading when side impact forces are higher.
  • FIG. 1 is an isometric view of one embodiment of drill bit constructed in accordance with the present invention
  • FIG. 2 is a schematic representation of half of a cutting profile of the drill bit of FIG. 1 and is constructed in accordance with the present invention
  • FIG. 3 is an illustration of cutter element manipulation
  • FIG. 4 is a side view of a cutting element showing a conventional back rake angle
  • FIG. 5 is a side view of one embodiment of a cutting element showing a back rake angle constructed in accordance with the present invention.
  • FIG. 6 is a side view of another embodiment of a cutting element showing a back rake angle constructed in accordance with the present invention.
  • Bit 11 has a bit axis 12 and a threaded end 13 for connection into a drill string.
  • a cutting end 15 at a generally opposite end of the bit 11 is provided with a plurality of hard cutting elements 17 (e.g., polycrystalline diamond cutters, etc.) arranged about cutting end 15 to effect efficient disintegration of formation material as bit 11 is rotated in a bore hole.
  • each cutting element 17 has a cylindrical base 19 with an axis 20, and is secured in a preformed pocket 21 provided on cutting end 15 and a cutting face 23 that engages the formation material.
  • cutting element 17 may comprise a frustoconical cutting end that forms a beveled edge adjacent the face 23.
  • Cutting element 17 acts somewhat like a plow that generally directs a high percentage of the material of the formation up its flat face.
  • profile 25 (approximately half of which is shown in FIG. 2) about bit axis 12.
  • profile 25 comprises various areas, including a cone 27, a nose 29, a shoulder 31 , and a gauge or gauge pad or surface 33.
  • the gauge 33 is on a radially outermost portion of the bit body relative to the bit axis 12.
  • the gauge 33 essentially defines the flat, outer diameter side wall portion of bit 11 that extends from cutting end 15 (FIG. 1).
  • the gauge 33 and its cutting components are proximal to and contact the side wall 34 (see FIG. 3) of the bore hole during drilling operations with bit 11.
  • a plurality of channels or grooves 35 extend from cutting end 15 through gauge 33 to provide a clearance area for the removal of cuttings and chips formed by cutting elements 17.
  • a plurality of cutting elements 17 are provided on gauge 33 of bit 11.
  • Active, gauge cutting elements 17 on gauge 33 provide the ability to actively cut formation material at the side wall 34 (FIG. 3) of the bore hole to provide dynamic stability and improved gauge-holding ability in earth-boring bits of the fixed cutter variety.
  • at least some of the gauge cutting elements 17 on gauge 33 may be ground flat at the outer diameter of bit 11 for some types of applications.
  • Bit 11 is illustrated as a polycrystalline diamond cutter (PDC) bit, but cutting elements 17 are equally useful in other fixed cutter or drag bits that include a gauge or gauge surface for engagement with the side wall of the bore hole. Examples include impregnated and natural diamond bit cutting elements.
  • Cutting element 117 is a conventional PDC cutting element and is cylindrical in shape.
  • Cutting element 117 has an axis 120 and a diamond table on its face 123 with an essentially circular cross-section.
  • Cutting element 117 has a cutter back rake angle 140 of 20°.
  • conventional cutter back rake angles of 5° to 30° also are known.
  • the circle 23 represents the face of cutting element 17 on the gauge 33.
  • a back rake axis 42 is shown as vertical in the drawing, and parallel to the gauge 33, bit axis 12, and the bore side wall 34.
  • a side rake axis 44 is perpendicular to axis 42, gauge 33, the bit axis 12, and the bore side wall 34.
  • both the back rake angle and the side rake angle of element 17 are zero.
  • face 23 extends in the plane defined by axes 42, 44, such that it is perpendicular to the gauge 33 and bore sidewall, and face 23 is parallel to axes 12, 42 and 44. Rotating the face 23 about axis 42 results in a modification to the back rake angle.
  • a positive back rake angle inclines the cutting face 23 away from the bit axis 12 and toward the borehole 34. Rotating the face 23 about axis 44 results in a modification to the side rake angle.
  • a positive side rake angle includes the cutting face 23 away from the drill string and toward the bottom of the bore hole.
  • one embodiment of cutting element 17 in accordance with the invention is shown with a relatively large positive back rake angle 42 of 40°, and a 0° side rake angle.
  • another embodiment of cutting element 17 is shown at a 65° back rake angle 42, and a 0° side rake angle.
  • the invention may comprise back rake angles of approximately 40° to 70°.
  • side-cutting e.g., cutting with the gauge 33 of the cutting profile 25
  • a very high back rake angle help ensures compressive cutter loading when side impact forces are higher.

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

La présente invention concerne un outil rotatif à taillants fixes (11) dont les éléments coupants (17) du calibre présentent d'importants angles de coupe vers l'arrière. Le calibre (33) est situé au niveau de la partie de paroi latérale du diamètre externe de l'outil prenant naissance à l'extrémité coupante. Le calibre et ses composants coupants (17) sont en contact avec la paroi latérale du trou de forage pendant les opérations de forage. Les éléments coupants du calibre peuvent être configurés en angle de coupe vers l'arrière dans une plage d'environ 40° à 70°.
PCT/US2008/001764 2007-02-12 2008-02-11 Outil bilame rotatif WO2008100455A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT08725403T ATE534797T1 (de) 2007-02-12 2008-02-11 Drehwiderstandsbit
EP08725403A EP2118431B1 (fr) 2007-02-12 2008-02-11 Outil bilame rotatif
MX2009008257A MX2009008257A (es) 2007-02-12 2008-02-11 Barrena rotatoria de arrastre.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US88940307P 2007-02-12 2007-02-12
US60/889,403 2007-02-12

Publications (1)

Publication Number Publication Date
WO2008100455A1 true WO2008100455A1 (fr) 2008-08-21

Family

ID=39530646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/001764 WO2008100455A1 (fr) 2007-02-12 2008-02-11 Outil bilame rotatif

Country Status (7)

Country Link
US (1) US20080190670A1 (fr)
EP (1) EP2118431B1 (fr)
CN (1) CN101605962A (fr)
AT (1) ATE534797T1 (fr)
MX (1) MX2009008257A (fr)
RU (1) RU2009133697A (fr)
WO (1) WO2008100455A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019131812A (ja) * 2014-05-06 2019-08-08 ミリケン・アンド・カンパニーＭｉｌｌｉｋｅｎ ＆ Ｃｏｍｐａｎｙ ランドリーケア組成物

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9644428B2 (en) * 2009-01-09 2017-05-09 Baker Hughes Incorporated Drill bit with a hybrid cutter profile
US9464490B2 (en) * 2012-05-03 2016-10-11 Smith International, Inc. Gage cutter protection for drilling bits
WO2014088946A1 (fr) 2012-12-03 2014-06-12 Ulterra Drilling Technologies, L.P. Outil de forage de terre présentant un agencement amélioré d'inclinaisons latérales de dispositif de coupe
CN103362444B (zh) * 2013-07-24 2016-10-26 中国地质大学（武汉） 一种切削-磨削翼片型油气钻井用钻头
US9739094B2 (en) 2013-09-06 2017-08-22 Baker Hughes Incorporated Reamer blades exhibiting at least one of enhanced gage cutting element backrakes and exposures and reamers so equipped
EP2865843B1 (fr) * 2013-10-28 2016-01-20 Sandvik Intellectual Property AB Trépan pour roches à percussion avec des boutons de jauge optimisés
GB2520998B (en) 2013-12-06 2016-06-29 Schlumberger Holdings Expandable Reamer
CN104074465A (zh) * 2014-07-09 2014-10-01 江苏长城石油装备制造有限公司 一种用于刮刀切削牙轮的钻头
GB2528454A (en) * 2014-07-21 2016-01-27 Schlumberger Holdings Reamer
GB2528457B (en) * 2014-07-21 2018-10-10 Schlumberger Holdings Reamer
GB2528459B (en) * 2014-07-21 2018-10-31 Schlumberger Holdings Reamer
GB2528456A (en) * 2014-07-21 2016-01-27 Schlumberger Holdings Reamer
US10519722B2 (en) 2014-07-21 2019-12-31 Schlumberger Technology Corporation Reamer
GB2528458A (en) * 2014-07-21 2016-01-27 Schlumberger Holdings Reamer
CN106761424B (zh) * 2017-01-21 2019-04-12 四川川石·克锐达金刚石钻头有限公司 一种切削元件成对设置的pdc钻头
JP6543297B2 (ja) * 2017-05-31 2019-07-10 独立行政法人石油天然ガス・金属鉱物資源機構 Ｐｄｃビット
US11480016B2 (en) 2018-11-12 2022-10-25 Ulterra Drilling Technologies, L.P. Drill bit
CN113738285A (zh) * 2020-05-27 2021-12-03 中国石油天然气集团有限公司 具有切削脊和倾斜切削面的复合片及pdc钻头
RU2769009C1 (ru) * 2021-08-23 2022-03-28 Алексей Викторович Чихоткин Буровое долото

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440247A (en) * 1982-04-29 1984-04-03 Sartor Raymond W Rotary earth drilling bit
EP1091083A1 (fr) 1999-08-09 2001-04-11 Diamond Products International, Inc. Trépan de forage bicentral adapté pour forer un sabot de tubage
EP1134355A2 (fr) 1994-10-15 2001-09-19 Camco Drilling Group Limited Trépan de forage rotatif
WO2003031763A1 (fr) 2001-10-03 2003-04-17 Shell Internationale Research Maatschappij B.V. Systeme de forage par rotopercussion dans une formation geologique
US20060185901A1 (en) * 2005-02-22 2006-08-24 Sinor L A Drilling tool equipped with improved cutting element layout to reduce cutter damage through formation changes, methods of design and operation thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5287936A (en) * 1992-01-31 1994-02-22 Baker Hughes Incorporated Rolling cone bit with shear cutting gage
US5346026A (en) * 1992-01-31 1994-09-13 Baker Hughes Incorporated Rolling cone bit with shear cutting gage
US5467836A (en) * 1992-01-31 1995-11-21 Baker Hughes Incorporated Fixed cutter bit with shear cutting gage
US6050354A (en) * 1992-01-31 2000-04-18 Baker Hughes Incorporated Rolling cutter bit with shear cutting gage
US6332503B1 (en) * 1992-01-31 2001-12-25 Baker Hughes Incorporated Fixed cutter bit with chisel or vertical cutting elements
US5443565A (en) * 1994-07-11 1995-08-22 Strange, Jr.; William S. Drill bit with forward sweep cutting elements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440247A (en) * 1982-04-29 1984-04-03 Sartor Raymond W Rotary earth drilling bit
EP1134355A2 (fr) 1994-10-15 2001-09-19 Camco Drilling Group Limited Trépan de forage rotatif
EP1091083A1 (fr) 1999-08-09 2001-04-11 Diamond Products International, Inc. Trépan de forage bicentral adapté pour forer un sabot de tubage
WO2003031763A1 (fr) 2001-10-03 2003-04-17 Shell Internationale Research Maatschappij B.V. Systeme de forage par rotopercussion dans une formation geologique
US20060185901A1 (en) * 2005-02-22 2006-08-24 Sinor L A Drilling tool equipped with improved cutting element layout to reduce cutter damage through formation changes, methods of design and operation thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019131812A (ja) * 2014-05-06 2019-08-08 ミリケン・アンド・カンパニーＭｉｌｌｉｋｅｎ ＆ Ｃｏｍｐａｎｙ ランドリーケア組成物

Also Published As

Publication number Publication date
ATE534797T1 (de) 2011-12-15
CN101605962A (zh) 2009-12-16
MX2009008257A (es) 2009-08-12
EP2118431B1 (fr) 2011-11-23
US20080190670A1 (en) 2008-08-14
EP2118431A1 (fr) 2009-11-18
RU2009133697A (ru) 2011-03-20

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