SE0003881L - Procedure for rock drilling - Google Patents

Procedure for rock drilling

Info

Publication number
SE0003881L
SE0003881L SE0003881A SE0003881A SE0003881L SE 0003881 L SE0003881 L SE 0003881L SE 0003881 A SE0003881 A SE 0003881A SE 0003881 A SE0003881 A SE 0003881A SE 0003881 L SE0003881 L SE 0003881L
Authority
SE
Sweden
Prior art keywords
rock drilling
procedure
reduced
drill string
drill
Prior art date
Application number
SE0003881A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE516968C2 (en
SE0003881D0 (en
Inventor
Aake Ekloef
Original Assignee
Atlas Copco Rock Drills Ab
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 Atlas Copco Rock Drills Ab filed Critical Atlas Copco Rock Drills Ab
Priority to SE0003881A priority Critical patent/SE0003881L/en
Publication of SE0003881D0 publication Critical patent/SE0003881D0/en
Priority to PCT/SE2001/002271 priority patent/WO2002035062A1/en
Priority to AU2001296155A priority patent/AU2001296155A1/en
Publication of SE516968C2 publication Critical patent/SE516968C2/en
Publication of SE0003881L publication Critical patent/SE0003881L/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
    • E21B1/00—Percussion drilling
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable
    • 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
    • E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/02—Automatic control of the tool feed

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)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)

Abstract

Method of rock drilling with a percussion rock drilling machine (2) to which a drill string (18) comprising parts (31, 32, 33, 19) screwed together is connected. In order to obtain efficient loosening of the screw joints and reduced drilling time the feed force is reduced at a predetermined distance (37) from a predetermined hole bottom (36) at the same time as the drill string (18) is exerted to impacts with substantially unchanged strength until the drill hole has been completed.
SE0003881A 2000-10-26 2000-10-26 Procedure for rock drilling SE0003881L (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE0003881A SE0003881L (en) 2000-10-26 2000-10-26 Procedure for rock drilling
PCT/SE2001/002271 WO2002035062A1 (en) 2000-10-26 2001-10-18 Method of rock drilling
AU2001296155A AU2001296155A1 (en) 2000-10-26 2001-10-18 Method of rock drilling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE0003881A SE0003881L (en) 2000-10-26 2000-10-26 Procedure for rock drilling

Publications (3)

Publication Number Publication Date
SE0003881D0 SE0003881D0 (en) 2000-10-26
SE516968C2 SE516968C2 (en) 2002-03-26
SE0003881L true SE0003881L (en) 2002-03-26

Family

ID=20281565

Family Applications (1)

Application Number Title Priority Date Filing Date
SE0003881A SE0003881L (en) 2000-10-26 2000-10-26 Procedure for rock drilling

Country Status (3)

Country Link
AU (1) AU2001296155A1 (en)
SE (1) SE0003881L (en)
WO (1) WO2002035062A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE543372C2 (en) * 2019-03-29 2020-12-22 Epiroc Rock Drills Ab Drilling machine and method for controlling a drilling process of a drilling machine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE447502B (en) * 1982-06-22 1986-11-17 Cerac Inst Sa FEEDING DEVICE AT THE MOUNTAIN DRILL CONDITION FOR DRILLING WITH SCREWS
US4995465A (en) * 1989-11-27 1991-02-26 Conoco Inc. Rotary drillstring guidance by feedrate oscillation
FR2663680B1 (en) * 1990-06-26 1992-09-11 Eimco Secoma ANCHORING EFFORT CONTROL DEVICE FOR A DRILLING SLIDE.
JP2941717B2 (en) * 1996-08-21 1999-08-30 中小企業事業団 Drill drill control system

Also Published As

Publication number Publication date
SE516968C2 (en) 2002-03-26
WO2002035062A1 (en) 2002-05-02
AU2001296155A1 (en) 2002-05-06
SE0003881D0 (en) 2000-10-26

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Legal Events

Date Code Title Description
NUG Patent has lapsed