ATE16954T1 - DOWNHOLE PNEUMATIC IMPACT DRIVE. - Google Patents

DOWNHOLE PNEUMATIC IMPACT DRIVE.

Info

Publication number
ATE16954T1
ATE16954T1 AT83400495T AT83400495T ATE16954T1 AT E16954 T1 ATE16954 T1 AT E16954T1 AT 83400495 T AT83400495 T AT 83400495T AT 83400495 T AT83400495 T AT 83400495T AT E16954 T1 ATE16954 T1 AT E16954T1
Authority
AT
Austria
Prior art keywords
air
piston
pressure
bit
compressed air
Prior art date
Application number
AT83400495T
Other languages
German (de)
Inventor
Gelis Christian De
Marcel Techy
Original Assignee
Stenuick Freres
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 Stenuick Freres filed Critical Stenuick Freres
Application granted granted Critical
Publication of ATE16954T1 publication Critical patent/ATE16954T1/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
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
    • 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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Jib Cranes (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

1. Down-the-hole pneumatic drilling hammer, which comprises a tubular body (1) supplied with compressed air and carrying a drilling bit (3) and in which a ramming piston (21) is made to perform a reciprocating movement inside an internal sleeve (7) forming a casing by means of a mechanism for distributing compressed air alternately above and below the ramming piston in such a way that it cyclically strikes the bit and rises again, characterised in that the hammer has two separate sources (16, 18) of compressed air, a high-pressure one and a low-pressure one respectively, the distribution mechanism ensuring alternately the supply of high-pressure air to the upper chamber (51) above the piston (21) so as to project the latter towards the bit, while the lower chamber (50) allows the air to escape, and the supply of low-pressure air to the lower chamber (50) so as to cause the piston (21) to rise again, while the upper chamber (51) allows the air to escape.
AT83400495T 1982-03-11 1983-03-11 DOWNHOLE PNEUMATIC IMPACT DRIVE. ATE16954T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8204077A FR2523202A1 (en) 1982-03-11 1982-03-11 HAMMER WITH PNEUMATIC DRIVE OF THE TYPE "FOND-DE-TROU"
EP83400495A EP0088705B1 (en) 1982-03-11 1983-03-11 Down-the-hole pneumatic hammer

Publications (1)

Publication Number Publication Date
ATE16954T1 true ATE16954T1 (en) 1985-12-15

Family

ID=9271855

Family Applications (1)

Application Number Title Priority Date Filing Date
AT83400495T ATE16954T1 (en) 1982-03-11 1983-03-11 DOWNHOLE PNEUMATIC IMPACT DRIVE.

Country Status (4)

Country Link
EP (1) EP0088705B1 (en)
AT (1) ATE16954T1 (en)
DE (1) DE3361460D1 (en)
FR (1) FR2523202A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5662180A (en) * 1995-10-17 1997-09-02 Dresser-Rand Company Percussion drill assembly
US5957220A (en) * 1995-10-17 1999-09-28 Dresser-Rand Company Percussion drill assembly
US7040417B2 (en) 2003-12-11 2006-05-09 Cct Technologies, L.L.C. Drilling systems
CN106320983B (en) * 2016-11-08 2018-12-18 贵州高峰石油机械股份有限公司 A kind of ultra-deep-water is with boring cased method and device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2044939A5 (en) * 1969-05-23 1971-02-26 Stenuick Freres
US4054180A (en) * 1976-02-09 1977-10-18 Reed Tool Company Impact drilling tool having a shuttle valve
US4084647A (en) * 1976-07-01 1978-04-18 William Lister Pneumatic percussion hammer
ES453523A1 (en) * 1976-11-20 1977-11-16 Miralles Valle Charles Improvements in the fund hammers for rock drills and soils. (Machine-translation by Google Translate, not legally binding)
FR2424408A1 (en) * 1978-04-24 1979-11-23 Stenuick Freres PERFORATION SIZE FOR PNEUMATIC BOTTOM-OF-HOLE HAMMER
EP0022865B1 (en) * 1978-12-15 1984-08-01 Furukawakogyo Co.Ltd Hydraulically-driven downhole drill

Also Published As

Publication number Publication date
DE3361460D1 (en) 1986-01-23
EP0088705B1 (en) 1985-12-11
FR2523202B1 (en) 1984-04-13
FR2523202A1 (en) 1983-09-16
EP0088705A1 (en) 1983-09-14

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee