GB2296731B - A reverse circulation down-the-hole drill - Google Patents

A reverse circulation down-the-hole drill

Info

Publication number
GB2296731B
GB2296731B GB9600228A GB9600228A GB2296731B GB 2296731 B GB2296731 B GB 2296731B GB 9600228 A GB9600228 A GB 9600228A GB 9600228 A GB9600228 A GB 9600228A GB 2296731 B GB2296731 B GB 2296731B
Authority
GB
United Kingdom
Prior art keywords
hole drill
reverse circulation
circulation down
reverse
drill
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 - Lifetime
Application number
GB9600228A
Other versions
GB2296731A (en
GB9600228D0 (en
Inventor
Joseph Purcell
Patrick Purcell
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.)
Minroc Technical Promotions Ltd
Original Assignee
Minroc Technical Promotions Ltd
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 Minroc Technical Promotions Ltd filed Critical Minroc Technical Promotions Ltd
Publication of GB9600228D0 publication Critical patent/GB9600228D0/en
Publication of GB2296731A publication Critical patent/GB2296731A/en
Application granted granted Critical
Publication of GB2296731B publication Critical patent/GB2296731B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • 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

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)
GB9600228A 1995-01-06 1996-01-05 A reverse circulation down-the-hole drill Expired - Lifetime GB2296731B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE950010A IE80718B1 (en) 1995-01-06 1995-01-06 A reverse circulation down-the-hole drill

Publications (3)

Publication Number Publication Date
GB9600228D0 GB9600228D0 (en) 1996-03-06
GB2296731A GB2296731A (en) 1996-07-10
GB2296731B true GB2296731B (en) 1997-03-19

Family

ID=11040619

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9600228A Expired - Lifetime GB2296731B (en) 1995-01-06 1996-01-05 A reverse circulation down-the-hole drill

Country Status (4)

Country Link
AU (1) AU682640B2 (en)
GB (1) GB2296731B (en)
IE (1) IE80718B1 (en)
ZA (1) ZA9630B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPO957097A0 (en) * 1997-10-01 1997-10-30 Rear, Ian Graeme Hammer
AU747795B2 (en) * 1997-10-01 2002-05-23 Sandvik Mining And Construction Adelaide Ltd Hammer
AU3574299A (en) * 1998-05-05 1999-11-23 Bernard Lionel Gien Down-hole hammer drill having reverse circulation and sample tube
IES980988A2 (en) 1998-11-27 1999-09-08 Minroc Techn Promotions Ltd Segmented ring mounting for a fluid-operated percussion drill tool
AU2002311304B2 (en) * 2001-09-21 2008-04-03 Sandvik Mining And Construction Australia (Production/Supply) Pty Ltd Reverse circulation hammer
AUPR879901A0 (en) 2001-11-13 2001-12-06 Sds Digger Tools Pty Ltd An improved transmission sleeve
GB0407947D0 (en) * 2004-04-07 2004-05-12 Halco Drilling Internat Ltd Improvements in or relating to rock drilling equipment
IES20050495A2 (en) 2005-07-20 2006-11-01 Minroc Techn Promotions Ltd A drill bit assembly for fluid-operated percussion drill tools
KR101011433B1 (en) 2005-11-03 2011-01-28 락모어 인터내셔널, 아이엔씨 Backhead and drill assembly with backhead
PE20171458A1 (en) 2014-10-24 2017-10-11 Laserbond Ltd METHOD AND APPARATUS FOR COATING A SURFACE OF AN ARTICLE
MX2020006063A (en) * 2017-12-13 2020-08-24 Jaime Andres Aros Pressurised fluid flow system including multiple working chambers for a down-the-hole hammer and normal-circulation down-the-hole hammer comprising said system.
AU2020311828A1 (en) * 2019-07-11 2022-02-03 Ignis Technologies Pty Ltd Return exhaust assembly for a reverse circulation hammer
CN117145379B (en) * 2023-10-31 2024-01-30 长沙黑金刚实业有限公司 Reverse circulation impactor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175941A (en) * 1985-06-07 1986-12-10 Weaver & Hurt Ltd Rock drills
US4917194A (en) * 1988-11-09 1990-04-17 Wallis Industries Pty Ltd. Improved downhole hammer
US4921052A (en) * 1988-03-24 1990-05-01 Rear Ian G Downhole recirculating hammer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2175941A (en) * 1985-06-07 1986-12-10 Weaver & Hurt Ltd Rock drills
US4921052A (en) * 1988-03-24 1990-05-01 Rear Ian G Downhole recirculating hammer
US4917194A (en) * 1988-11-09 1990-04-17 Wallis Industries Pty Ltd. Improved downhole hammer

Also Published As

Publication number Publication date
GB2296731A (en) 1996-07-10
IE950010A1 (en) 1996-07-10
AU4079396A (en) 1996-07-18
GB9600228D0 (en) 1996-03-06
IE80718B1 (en) 1998-12-30
AU682640B2 (en) 1997-10-09
ZA9630B (en) 1996-07-30

Similar Documents

Publication Publication Date Title
ZA9610393B (en) Drilling rig
GB2328699B (en) Drilling rig
GB9515593D0 (en) A roll-forged drill bit
GB9621206D0 (en) A drilling assembly for drilling holes in subsrtate formations
DK0624709T3 (en) A drill string Connection
GB2284224B (en) Drill bit
IL118371A0 (en) A drill guide
GB2301853B (en) Drilling wells
GB9515594D0 (en) A masonry drill bit
GB9611667D0 (en) Drilling a wellbore
GB2296731B (en) A reverse circulation down-the-hole drill
GB9406057D0 (en) Drilling mud
PL326856A1 (en) Drilling rig
ZA985216B (en) A drill bit
GB2311427B (en) A drill string sub assembly
GB2263489B (en) A drill bit
PL326764A1 (en) Drilling bit
PL312337A1 (en) Drilling bit
GB9624641D0 (en) Drill bit
GB9402123D0 (en) A drilling system
GB2301788B (en) Drill bit
GB9512250D0 (en) A drill string
GB2301386B (en) Drill bit
ZA98739B (en) Reverse circulation drill assembly
TW322809U (en) Core drill bit

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20091217 AND 20091223

PE20 Patent expired after termination of 20 years

Expiry date: 20160104