WO2009066907A3 - Drill body with air-hammer for inducing reverse circulation effectively and drilling method using the same - Google Patents

Drill body with air-hammer for inducing reverse circulation effectively and drilling method using the same Download PDF

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Publication number
WO2009066907A3
WO2009066907A3 PCT/KR2008/006743 KR2008006743W WO2009066907A3 WO 2009066907 A3 WO2009066907 A3 WO 2009066907A3 KR 2008006743 W KR2008006743 W KR 2008006743W WO 2009066907 A3 WO2009066907 A3 WO 2009066907A3
Authority
WO
WIPO (PCT)
Prior art keywords
air
hammer
reverse circulation
drill
drill body
Prior art date
Application number
PCT/KR2008/006743
Other languages
French (fr)
Other versions
WO2009066907A2 (en
Inventor
Sun Keun Park
Original Assignee
Core Geotechnics Co Ltd
Sun Keun Park
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 KR1020080064815A external-priority patent/KR20090051684A/en
Application filed by Core Geotechnics Co Ltd, Sun Keun Park filed Critical Core Geotechnics Co Ltd
Publication of WO2009066907A2 publication Critical patent/WO2009066907A2/en
Publication of WO2009066907A3 publication Critical patent/WO2009066907A3/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • 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
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/12—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using drilling pipes with plural fluid passages, e.g. closed circulation systems

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

The invention relates to a drill body equipped at the front end of a rod in a drill with a reverse circulation inducing air hammer and a method of using the drill body, the drill being proposed to use compressed air used in driving air hammers for discharging drill cuttings. More particularly, the invention concerns a drill body with a reverse circulation inducing air hammer in which primary initial reverse circulation of compressed air is induced by supplying compressed air without being involved in driving the air hammer in advance before driving it thereby to form a flow of discharging drill cuttings, and a method of drilling a hole in a reverse circulation manner. The drill body with a reverse circulation inducing air hammer equipped at the front end of a rod of a drill according to the invention comprises an air hammer; a discharge pipe; a first air supply pipe to which compressed air is supplied for driving the air hammer; and a second air supply pipe to which compressed air is supplied to be discharged to the discharge pipe, the bit at the front end of the air hammer being formed with air discharge holes.
PCT/KR2008/006743 2007-11-19 2008-11-17 Drill body with air-hammer for inducing reverse circulation effectively and drilling method using the same WO2009066907A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2007-0117960 2007-11-19
KR20070117960 2007-11-19
KR1020080064815A KR20090051684A (en) 2007-11-19 2008-07-04 Drill body with air-hammer for inducing reverse circulation effectively and drilling method using the same
KR10-2008-0064815 2008-07-04

Publications (2)

Publication Number Publication Date
WO2009066907A2 WO2009066907A2 (en) 2009-05-28
WO2009066907A3 true WO2009066907A3 (en) 2009-08-06

Family

ID=40667969

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2008/006743 WO2009066907A2 (en) 2007-11-19 2008-11-17 Drill body with air-hammer for inducing reverse circulation effectively and drilling method using the same

Country Status (1)

Country Link
WO (1) WO2009066907A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2818859C (en) * 2011-02-11 2016-08-09 Top Mark Mechanical Equipment Limited Annulus ring hole drill
JP6322520B2 (en) * 2014-08-27 2018-05-09 大智株式会社 Down-the-hole hammer, down-the-hole hammer weight adjustment method, and excavation method
CN104989278A (en) * 2015-05-05 2015-10-21 罗金泉 Impact type jet bit
AT522402B1 (en) * 2019-04-11 2022-12-15 Rene Egger Method and device for drilling holes in soil or rock material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790391A (en) * 1985-10-04 1988-12-13 Tone Boring Co., Ltd. Air pressure impact drilling method and apparatus for same
JPH11229740A (en) * 1998-02-13 1999-08-24 Kawana Kogyo Kk Subsoil excavation method and device
KR20060107247A (en) * 2005-04-08 2006-10-13 (주)코아지질 Reaming device with reverse circulation air-hammer and rock drilling method using the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4790391A (en) * 1985-10-04 1988-12-13 Tone Boring Co., Ltd. Air pressure impact drilling method and apparatus for same
JPH11229740A (en) * 1998-02-13 1999-08-24 Kawana Kogyo Kk Subsoil excavation method and device
KR20060107247A (en) * 2005-04-08 2006-10-13 (주)코아지질 Reaming device with reverse circulation air-hammer and rock drilling method using the same

Also Published As

Publication number Publication date
WO2009066907A2 (en) 2009-05-28

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