SE8105805L - Down time redn. in quarrying drill crown replacement - involves fitments allowing crown removal, upwards transport, substitution - Google Patents

Down time redn. in quarrying drill crown replacement - involves fitments allowing crown removal, upwards transport, substitution

Info

Publication number
SE8105805L
SE8105805L SE8105805A SE8105805A SE8105805L SE 8105805 L SE8105805 L SE 8105805L SE 8105805 A SE8105805 A SE 8105805A SE 8105805 A SE8105805 A SE 8105805A SE 8105805 L SE8105805 L SE 8105805L
Authority
SE
Sweden
Prior art keywords
crown
drill
redn
fitments
quarrying
Prior art date
Application number
SE8105805A
Other languages
Swedish (sv)
Inventor
Joran Lagne
Bjorn Lamperud
Original Assignee
Joran Lagne
Bjorn Lamperud
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 Joran Lagne, Bjorn Lamperud filed Critical Joran Lagne
Priority to SE8105805A priority Critical patent/SE8105805L/en
Publication of SE8105805L publication Critical patent/SE8105805L/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
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe

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

Method of changing of a drill crown when drilling vertical and horizontal holes without removing the drill rod is described. The crown can be made to run along the drill rod by hydraulic pressure. There is also a special arrangement on the crown and the bottom of the drill tube whereby the crown and drill head can be fixed in position for conventional drilling and when required can be freed for taking up. (Provisional Basic previously advised in Week20).
SE8105805A 1981-10-01 1981-10-01 Down time redn. in quarrying drill crown replacement - involves fitments allowing crown removal, upwards transport, substitution SE8105805L (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8105805A SE8105805L (en) 1981-10-01 1981-10-01 Down time redn. in quarrying drill crown replacement - involves fitments allowing crown removal, upwards transport, substitution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8105805A SE8105805L (en) 1981-10-01 1981-10-01 Down time redn. in quarrying drill crown replacement - involves fitments allowing crown removal, upwards transport, substitution

Publications (1)

Publication Number Publication Date
SE8105805L true SE8105805L (en) 1983-04-02

Family

ID=20344679

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8105805A SE8105805L (en) 1981-10-01 1981-10-01 Down time redn. in quarrying drill crown replacement - involves fitments allowing crown removal, upwards transport, substitution

Country Status (1)

Country Link
SE (1) SE8105805L (en)

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