NO852975L - HULLAAPNER. - Google Patents

HULLAAPNER.

Info

Publication number
NO852975L
NO852975L NO852975A NO852975A NO852975L NO 852975 L NO852975 L NO 852975L NO 852975 A NO852975 A NO 852975A NO 852975 A NO852975 A NO 852975A NO 852975 L NO852975 L NO 852975L
Authority
NO
Norway
Prior art keywords
hullaapner
Prior art date
Application number
NO852975A
Other languages
Norwegian (no)
Other versions
NO169609C (en
NO169609B (en
Inventor
Neil Andrew Abercrombi Simpson
Alan Martyn Eddison
Ian Alexander Millar
Original Assignee
Diamant Boart Sa
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 US06/634,956 external-priority patent/US4589504A/en
Priority claimed from GB858510911A external-priority patent/GB8510911D0/en
Application filed by Diamant Boart Sa filed Critical Diamant Boart Sa
Publication of NO852975L publication Critical patent/NO852975L/en
Publication of NO169609B publication Critical patent/NO169609B/en
Publication of NO169609C publication Critical patent/NO169609C/en

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
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids

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)
  • Walking Sticks, Umbrellas, And Fans (AREA)
NO852975A 1984-07-27 1985-07-26 Borehole expansion tool NO169609C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/634,956 US4589504A (en) 1984-07-27 1984-07-27 Well bore enlarger
GB858510911A GB8510911D0 (en) 1985-04-30 1985-04-30 Hole opener

Publications (3)

Publication Number Publication Date
NO852975L true NO852975L (en) 1986-01-28
NO169609B NO169609B (en) 1992-04-06
NO169609C NO169609C (en) 1992-07-15

Family

ID=26289185

Family Applications (1)

Application Number Title Priority Date Filing Date
NO852975A NO169609C (en) 1984-07-27 1985-07-26 Borehole expansion tool

Country Status (3)

Country Link
EP (1) EP0176180B1 (en)
DE (1) DE3566564D1 (en)
NO (1) NO169609C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8620362D0 (en) * 1986-08-21 1986-10-01 Smith Int North Sea Milling tool
DE4012222A1 (en) * 1990-04-14 1991-10-17 Gerhard Bihler Deep boring drill assembly - has quick tool-changing mechanism to substitute roller chisels and fixed chisels
GB9211946D0 (en) * 1992-06-05 1992-07-15 Panther Oil Tools Uk Ltd Backreaming stabilizer
SE506342C2 (en) * 1996-04-09 1997-12-08 Sandvik Ab Clearing tools for rock drilling and ancillary part for this
US6742607B2 (en) 2002-05-28 2004-06-01 Smith International, Inc. Fixed blade fixed cutter hole opener

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2028910A (en) * 1934-02-03 1936-01-28 John W Macclatchie Reamer
US2149798A (en) * 1936-06-27 1939-03-07 Arthur E Krick Well-drilling bit
US2140417A (en) * 1937-12-28 1938-12-13 Conklin Ancil Brooks Core taker for rotary drills
US2249732A (en) * 1939-09-22 1941-07-22 Paul F Green Off center reamer
US2607562A (en) * 1951-03-19 1952-08-19 Phipps Orville Self-piloted rotary drill bit
GB788104A (en) * 1954-10-01 1957-12-23 Modern Hardmetals Ltd Improvements in or relating to rock drilling bits
US3324957A (en) * 1963-09-24 1967-06-13 Gulf Research Development Co Hydraulic jet method of drilling a well through hard formations
US3237705A (en) * 1963-11-13 1966-03-01 Williams Joseph W Reamer for enlarging and straightening bore holes
US3908771A (en) * 1974-03-01 1975-09-30 Wylie P Garrett Drill collar incorporating device for jetting drilling fluid transversely into bore hole
JPS56500897A (en) * 1979-06-19 1981-07-02

Also Published As

Publication number Publication date
NO169609C (en) 1992-07-15
EP0176180B1 (en) 1988-11-30
DE3566564D1 (en) 1989-01-05
NO169609B (en) 1992-04-06
EP0176180A1 (en) 1986-04-02

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees