SE7606026L - - Google Patents

Info

Publication number
SE7606026L
SE7606026L SE7606026A SE7606026A SE7606026L SE 7606026 L SE7606026 L SE 7606026L SE 7606026 A SE7606026 A SE 7606026A SE 7606026 A SE7606026 A SE 7606026A SE 7606026 L SE7606026 L SE 7606026L
Authority
SE
Sweden
Application number
SE7606026A
Other languages
Swedish (sv)
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 US05/581,379 external-priority patent/US4031974A/en
Priority claimed from US05/585,452 external-priority patent/US3977481A/en
Application filed filed Critical
Publication of SE7606026L publication Critical patent/SE7606026L/sv

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
    • E21B10/18—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
    • 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)
SE7606026A 1975-05-27 1976-05-26 SE7606026L (enrdf_load_stackoverflow)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US05/581,379 US4031974A (en) 1975-05-27 1975-05-27 Boring apparatus capable of boring straight holes
US05/585,452 US3977481A (en) 1974-03-05 1975-06-09 Boring apparatus

Publications (1)

Publication Number Publication Date
SE7606026L true SE7606026L (enrdf_load_stackoverflow) 1976-11-28

Family

ID=27078305

Family Applications (2)

Application Number Title Priority Date Filing Date
SE7606027A SE7606027L (sv) 1975-05-27 1976-05-26 Borranordning
SE7606026A SE7606026L (enrdf_load_stackoverflow) 1975-05-27 1976-05-26

Family Applications Before (1)

Application Number Title Priority Date Filing Date
SE7606027A SE7606027L (sv) 1975-05-27 1976-05-26 Borranordning

Country Status (1)

Country Link
SE (2) SE7606027L (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
SE7606027L (sv) 1976-11-28

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