UST970002I4 - Cutting elements for drill bits - Google Patents

Cutting elements for drill bits Download PDF

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Publication number
UST970002I4
UST970002I4 US05/833,480 US83348077A UST970002I4 US T970002 I4 UST970002 I4 US T970002I4 US 83348077 A US83348077 A US 83348077A US T970002 I4 UST970002 I4 US T970002I4
Authority
US
United States
Prior art keywords
notch
cutting element
cutting elements
drill bits
cone cutter
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.)
Pending
Application number
US05/833,480
Inventor
Harry E. Kidder
Robert F. Evans
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.)
Smith International Inc
Original Assignee
Smith International 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 Smith International Inc filed Critical Smith International Inc
Application granted granted Critical
Publication of UST970002I4 publication Critical patent/UST970002I4/en
Pending 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or 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
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/28—Miscellaneous

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 cutting element for mounting in a rolling cone cutter of a rock drill bit has a notch in the periphery of its base for improved retention of the cutting element in the rolling cone cutter. The longitudinal axis of the notch is essentially transverse to the direction of insertion of the cutting element into the rolling cone cutter. To maximize the effectiveness of the notch in improving retention of the cutting element, preferably the notch is sharp lipped.
US05/833,480 1976-11-01 1977-09-15 Cutting elements for drill bits Pending UST970002I4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US73732876A 1976-11-01 1976-11-01

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US73732876A Continuation 1976-11-01 1976-11-01

Publications (1)

Publication Number Publication Date
UST970002I4 true UST970002I4 (en) 1978-05-02

Family

ID=24963470

Family Applications (1)

Application Number Title Priority Date Filing Date
US05/833,480 Pending UST970002I4 (en) 1976-11-01 1977-09-15 Cutting elements for drill bits

Country Status (1)

Country Link
US (1) UST970002I4 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050039954A1 (en) * 2002-08-27 2005-02-24 Brandenberg Kristin R. Method of producing downhole drill bits with integral carbide studs
AU2007201463B2 (en) * 2003-08-13 2010-09-09 Sandvik Intellectual Property Ab Shaped inserts with increased retention force

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050039954A1 (en) * 2002-08-27 2005-02-24 Brandenberg Kristin R. Method of producing downhole drill bits with integral carbide studs
US7506705B2 (en) * 2002-08-27 2009-03-24 Applied Process, Inc. Method of producing downhole drill bits with integral carbide studs
AU2007201463B2 (en) * 2003-08-13 2010-09-09 Sandvik Intellectual Property Ab Shaped inserts with increased retention force

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