WO2000029709A3 - Rotary cone drill bit having a bit body with integral stabilizers - Google Patents

Rotary cone drill bit having a bit body with integral stabilizers Download PDF

Info

Publication number
WO2000029709A3
WO2000029709A3 PCT/US1999/026491 US9926491W WO0029709A3 WO 2000029709 A3 WO2000029709 A3 WO 2000029709A3 US 9926491 W US9926491 W US 9926491W WO 0029709 A3 WO0029709 A3 WO 0029709A3
Authority
WO
WIPO (PCT)
Prior art keywords
support arms
bit body
bit
stabilizer
rotary cone
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.)
Ceased
Application number
PCT/US1999/026491
Other languages
French (fr)
Other versions
WO2000029709A2 (en
WO2000029709A9 (en
Inventor
James S Dahlem
Karl Don Knecht
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries Inc
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 Dresser Industries Inc filed Critical Dresser Industries Inc
Priority to EP99962728A priority Critical patent/EP1131531A2/en
Priority to AU19110/00A priority patent/AU1911000A/en
Publication of WO2000029709A2 publication Critical patent/WO2000029709A2/en
Publication of WO2000029709A3 publication Critical patent/WO2000029709A3/en
Anticipated expiration legal-status Critical
Publication of WO2000029709A9 publication Critical patent/WO2000029709A9/en
Ceased 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
    • 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

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 rotary cone drill bit for forming a borehole having a bit body with a plurality of stabilizer pads formed as integral components thereof. The bit body includes an upper portion adapted for connection to a drill string. A number of support arms preferably extend from a lower portion of the bit body. A number of cutter cone assemblies equal to the number of support arms are rotatably mounted on respective support arms and project generally downwardly and inwardly from each support arm. The stabilizer pads project radially outward from the bit body and are disposed intermediate adjacent support arms. Both the stabilizer pads and the support arms preferably have surfaces that form a fluid flow channel therebetween to direct drilling fluids and cuttings to flow upward in the borehole. Layer of hardfacing may be disposed on selected portions of each stabilizer pad. One or more inserts may be installed in selected portions of each stabilizer pad.
PCT/US1999/026491 1998-11-18 1999-11-10 Rotary cone drill bit having a bit body with integral stabilizers Ceased WO2000029709A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP99962728A EP1131531A2 (en) 1998-11-18 1999-11-10 Rotary cone drill bit having a bit body with integral stabilizers
AU19110/00A AU1911000A (en) 1998-11-18 1999-11-10 Rotary cone drill bit having a bit body with integral stabilizers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10907398P 1998-11-18 1998-11-18
US60/109,073 1998-11-18

Publications (3)

Publication Number Publication Date
WO2000029709A2 WO2000029709A2 (en) 2000-05-25
WO2000029709A3 true WO2000029709A3 (en) 2000-08-31
WO2000029709A9 WO2000029709A9 (en) 2001-12-06

Family

ID=22325637

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/026491 Ceased WO2000029709A2 (en) 1998-11-18 1999-11-10 Rotary cone drill bit having a bit body with integral stabilizers

Country Status (4)

Country Link
EP (1) EP1131531A2 (en)
AU (1) AU1911000A (en)
ID (1) ID30163A (en)
WO (1) WO2000029709A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7316281B2 (en) * 2004-09-10 2008-01-08 Smith International, Inc. Two-cone drill bit with enhanced stability
CA2974075A1 (en) * 2016-08-09 2018-02-09 Varel International Ind., L.P. Durable rock bit for blast hole drilling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067406A (en) * 1976-07-29 1978-01-10 Smith International, Inc. Soft formation drill bit
US5147000A (en) * 1990-06-19 1992-09-15 Norvic S.A. Disc drill bit
US5586612A (en) * 1995-01-26 1996-12-24 Baker Hughes Incorporated Roller cone bit with positive and negative offset and smooth running configuration
US5755297A (en) * 1994-12-07 1998-05-26 Dresser Industries, Inc. Rotary cone drill bit with integral stabilizers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4067406A (en) * 1976-07-29 1978-01-10 Smith International, Inc. Soft formation drill bit
US5147000A (en) * 1990-06-19 1992-09-15 Norvic S.A. Disc drill bit
US5755297A (en) * 1994-12-07 1998-05-26 Dresser Industries, Inc. Rotary cone drill bit with integral stabilizers
US5586612A (en) * 1995-01-26 1996-12-24 Baker Hughes Incorporated Roller cone bit with positive and negative offset and smooth running configuration

Also Published As

Publication number Publication date
AU1911000A (en) 2000-06-05
WO2000029709A2 (en) 2000-05-25
WO2000029709A9 (en) 2001-12-06
EP1131531A2 (en) 2001-09-12
ID30163A (en) 2001-11-08

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