ZA200807765B - Down-the-hole hammer, percussion bit assembly and method of enlarging a hole - Google Patents

Down-the-hole hammer, percussion bit assembly and method of enlarging a hole

Info

Publication number
ZA200807765B
ZA200807765B ZA200807765A ZA200807765A ZA200807765B ZA 200807765 B ZA200807765 B ZA 200807765B ZA 200807765 A ZA200807765 A ZA 200807765A ZA 200807765 A ZA200807765 A ZA 200807765A ZA 200807765 B ZA200807765 B ZA 200807765B
Authority
ZA
South Africa
Prior art keywords
hole
enlarging
bit assembly
percussion bit
hammer
Prior art date
Application number
ZA200807765A
Other languages
English (en)
Inventor
Rob A Simmons
Original Assignee
Sandvik Intellectual Property
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 Sandvik Intellectual Property filed Critical Sandvik Intellectual Property
Publication of ZA200807765B publication Critical patent/ZA200807765B/xx

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
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
ZA200807765A 2006-03-30 2008-09-09 Down-the-hole hammer, percussion bit assembly and method of enlarging a hole ZA200807765B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US28701306A 2006-03-30 2006-03-30

Publications (1)

Publication Number Publication Date
ZA200807765B true ZA200807765B (en) 2010-08-25

Family

ID=38563931

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200807765A ZA200807765B (en) 2006-03-30 2008-09-09 Down-the-hole hammer, percussion bit assembly and method of enlarging a hole

Country Status (5)

Country Link
EP (1) EP2004947A1 (xx)
AU (1) AU2007232500B2 (xx)
CA (1) CA2645897A1 (xx)
WO (1) WO2007114749A1 (xx)
ZA (1) ZA200807765B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO335329B1 (no) 2013-02-20 2014-11-17 Shellcon As Borekrone med faste kutterelementer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884227A (en) * 1956-06-27 1959-04-28 Sandvikens Jernverks Ab Percussion drill bit for large holes
US3145789A (en) * 1962-03-20 1964-08-25 Russell H Lawry Pilot rock drill
US3469641A (en) * 1967-12-11 1969-09-30 Cominco Ltd Reaming bit assembly
US3870114A (en) * 1973-07-23 1975-03-11 Stabilator Ab Drilling apparatus especially for ground drilling
DE2807156C2 (de) * 1978-02-20 1986-11-20 Gebrüder Heller Verwaltungsgesellschaft mbH, 2807 Achim Gesteinsbohrwerkzeug

Also Published As

Publication number Publication date
EP2004947A1 (en) 2008-12-24
AU2007232500B2 (en) 2010-06-03
AU2007232500A1 (en) 2007-10-11
CA2645897A1 (en) 2007-10-11
WO2007114749A1 (en) 2007-10-11

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