FR2158307B1 - - Google Patents

Info

Publication number
FR2158307B1
FR2158307B1 FR7238164A FR7238164A FR2158307B1 FR 2158307 B1 FR2158307 B1 FR 2158307B1 FR 7238164 A FR7238164 A FR 7238164A FR 7238164 A FR7238164 A FR 7238164A FR 2158307 B1 FR2158307 B1 FR 2158307B1
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7238164A
Other languages
French (fr)
Other versions
FR2158307A1 (xx
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Atlas Copco AB
Original Assignee
Atlas Copco 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 AB filed Critical Atlas Copco AB
Publication of FR2158307A1 publication Critical patent/FR2158307A1/fr
Application granted granted Critical
Publication of FR2158307B1 publication Critical patent/FR2158307B1/fr
Expired legal-status Critical Current

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
    • 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
    • E21B44/06—Automatic control of the tool feed in response to the flow or pressure of the motive fluid of the drive
    • 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
    • E21B6/00—Drives for drilling with combined rotary and percussive action

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Fluid-Pressure Circuits (AREA)
FR7238164A 1971-11-05 1972-10-27 Expired FR2158307B1 (xx)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE14179/71A SE367858B (xx) 1971-11-05 1971-11-05

Publications (2)

Publication Number Publication Date
FR2158307A1 FR2158307A1 (xx) 1973-06-15
FR2158307B1 true FR2158307B1 (xx) 1976-05-21

Family

ID=20298663

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7238164A Expired FR2158307B1 (xx) 1971-11-05 1972-10-27

Country Status (12)

Country Link
JP (1) JPS5143442B2 (xx)
AT (1) AT318520B (xx)
CH (1) CH552743A (xx)
DE (1) DE2252458C3 (xx)
FI (1) FI55245C (xx)
FR (1) FR2158307B1 (xx)
GB (1) GB1380097A (xx)
IT (1) IT966461B (xx)
NO (1) NO132845C (xx)
PL (1) PL78634B1 (xx)
SE (1) SE367858B (xx)
ZA (1) ZA727612B (xx)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI56722C (fi) * 1975-07-24 1980-03-10 Tampella Oy Ab Hydraulisk borrmaskin speciellt bergborrmaskin
FI56723C (fi) * 1978-05-11 1980-03-10 Tampella Oy Ab Styrningssystem foer borrmaskin
FR2714419B1 (fr) * 1993-12-29 1996-03-22 Segelm Sa Apageo Dispositif de forage géotechnique, du type à tête de forage coulissant sur mât, par rotation et par roto-percussion, à deux arbres d'entraînement parallèles.
FI943695A (fi) * 1994-08-10 1996-02-11 Valto Ilomaeki Menetelmä poralaitteen säätämiseksi

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1043531A (en) * 1961-07-01 1966-09-21 Hobhouse Henry Variable speed drilling apparatus

Also Published As

Publication number Publication date
AT318520B (de) 1974-10-25
FI55245B (fi) 1979-02-28
DE2252458C3 (de) 1974-04-25
SE367858B (xx) 1974-06-10
DE2252458A1 (de) 1973-05-10
FI55245C (fi) 1979-06-11
CH552743A (de) 1974-08-15
PL78634B1 (en) 1975-06-30
FR2158307A1 (xx) 1973-06-15
JPS4856503A (xx) 1973-08-08
IT966461B (it) 1974-02-11
ZA727612B (en) 1973-07-25
NO132845B (xx) 1975-10-06
NO132845C (xx) 1976-01-14
DE2252458B2 (de) 1973-09-27
GB1380097A (en) 1975-01-08
JPS5143442B2 (xx) 1976-11-22

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Legal Events

Date Code Title Description
ST Notification of lapse