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AU503864B2 - Boring bit - Google Patents
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AU503864B2 - Boring bit - Google Patents

Boring bit

Info

Publication number
AU503864B2
AU503864B2 AU14364/76A AU1436476A AU503864B2 AU 503864 B2 AU503864 B2 AU 503864B2 AU 14364/76 A AU14364/76 A AU 14364/76A AU 1436476 A AU1436476 A AU 1436476A AU 503864 B2 AU503864 B2 AU 503864B2
Authority
AU
Australia
Prior art keywords
boring bit
boring
bit
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.)
Expired
Application number
AU14364/76A
Other versions
AU1436476A (en
Inventor
A. T Fisk
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.)
Rapidex Inc
Original Assignee
Rapidex 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
Priority claimed from US05/585,452 external-priority patent/US3977481A/en
Application filed by Rapidex Inc filed Critical Rapidex Inc
Publication of AU1436476A publication Critical patent/AU1436476A/en
Application granted granted Critical
Publication of AU503864B2 publication Critical patent/AU503864B2/en
Expired 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • E21B10/30—Longitudinal axis roller reamers, e.g. reamer stabilisers
    • 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
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • 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
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/24—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details
    • E21B10/246—Roller bits characterised by bearing, lubrication or sealing details characterised by lubricating details with pumping means for feeding lubricant
    • 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

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)
AU14364/76A 1975-06-09 1976-05-27 Boring bit Expired AU503864B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/585,452 US3977481A (en) 1974-03-05 1975-06-09 Boring apparatus
USUS585,452 1975-06-09

Publications (2)

Publication Number Publication Date
AU1436476A AU1436476A (en) 1977-12-01
AU503864B2 true AU503864B2 (en) 1979-09-27

Family

ID=24341504

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14364/76A Expired AU503864B2 (en) 1975-06-09 1976-05-27 Boring bit

Country Status (5)

Country Link
AU (1) AU503864B2 (en)
CA (1) CA1051417A (en)
GB (1) GB1551751A (en)
NO (1) NO761930L (en)
ZA (1) ZA763110B (en)

Also Published As

Publication number Publication date
GB1551751A (en) 1979-08-30
AU1436476A (en) 1977-12-01
NO761930L (en) 1976-12-10
ZA763110B (en) 1977-05-25
CA1051417A (en) 1979-03-27

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