IE870358L - Down-hole drill - Google Patents

Down-hole drill

Info

Publication number
IE870358L
IE870358L IE35887A IE35887A IE870358L IE 870358 L IE870358 L IE 870358L IE 35887 A IE35887 A IE 35887A IE 35887 A IE35887 A IE 35887A IE 870358 L IE870358 L IE 870358L
Authority
IE
Ireland
Prior art keywords
hole drill
drill
hole
Prior art date
Application number
IE35887A
Original Assignee
Minroc Techn 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 Techn Promotions Ltd filed Critical Minroc Techn Promotions Ltd
Priority to IE35887A priority Critical patent/IE870358L/en
Priority to BE8800180A priority patent/BE1000343A7/en
Publication of IE870358L publication Critical patent/IE870358L/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

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)
IE35887A 1987-02-12 1987-02-12 Down-hole drill IE870358L (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IE35887A IE870358L (en) 1987-02-12 1987-02-12 Down-hole drill
BE8800180A BE1000343A7 (en) 1987-02-12 1988-02-11 Compressed air driven hammer drill - with ratio of piston stroke to valve rod length between 1.20 and 1.25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IE35887A IE870358L (en) 1987-02-12 1987-02-12 Down-hole drill

Publications (1)

Publication Number Publication Date
IE870358L true IE870358L (en) 1988-08-12

Family

ID=11011127

Family Applications (1)

Application Number Title Priority Date Filing Date
IE35887A IE870358L (en) 1987-02-12 1987-02-12 Down-hole drill

Country Status (2)

Country Link
BE (1) BE1000343A7 (en)
IE (1) IE870358L (en)

Also Published As

Publication number Publication date
BE1000343A7 (en) 1988-10-25

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