IE34834B1 - Improvements in or relating to the drilling or cutting of earth strata - Google Patents

Improvements in or relating to the drilling or cutting of earth strata

Info

Publication number
IE34834B1
IE34834B1 IE162970A IE162970A IE34834B1 IE 34834 B1 IE34834 B1 IE 34834B1 IE 162970 A IE162970 A IE 162970A IE 162970 A IE162970 A IE 162970A IE 34834 B1 IE34834 B1 IE 34834B1
Authority
IE
Ireland
Prior art keywords
drilling
relating
cutting
earth strata
strata
Prior art date
Application number
IE162970A
Other languages
English (en)
Other versions
IE34834L (en
Original Assignee
Mining Developments Ag
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 Mining Developments Ag filed Critical Mining Developments Ag
Publication of IE34834L publication Critical patent/IE34834L/xx
Publication of IE34834B1 publication Critical patent/IE34834B1/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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/24—Drilling using vibrating or oscillating means, e.g. out-of-balance masses

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)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Earth Drilling (AREA)
IE162970A 1969-12-30 1970-12-22 Improvements in or relating to the drilling or cutting of earth strata IE34834B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB6323969 1969-12-30
GB6323869 1969-12-30
GB91370 1970-01-08
GB2122170 1970-05-02

Publications (2)

Publication Number Publication Date
IE34834L IE34834L (en) 1971-06-30
IE34834B1 true IE34834B1 (en) 1975-09-03

Family

ID=27447105

Family Applications (1)

Application Number Title Priority Date Filing Date
IE162970A IE34834B1 (en) 1969-12-30 1970-12-22 Improvements in or relating to the drilling or cutting of earth strata

Country Status (6)

Country Link
JP (1) JPS4943441B1 (xx)
CA (1) CA935810A (xx)
CH (1) CH528638A (xx)
FR (1) FR2083863A5 (xx)
IE (1) IE34834B1 (xx)
SE (1) SE395502B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA772816B (en) * 1977-05-11 1978-08-30 Delfos & Atlas Copco Improvements in or relating to mining,quarrying and similar rigs
SE527583C2 (sv) * 2005-03-14 2006-04-18 Atlas Copco Rock Drills Ab Borranordning

Also Published As

Publication number Publication date
JPS4943441B1 (xx) 1974-11-21
CH528638A (de) 1972-09-30
SE395502B (sv) 1977-08-15
FR2083863A5 (xx) 1971-12-17
CA935810A (en) 1973-10-23
IE34834L (en) 1971-06-30

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