DE282742C - - Google Patents

Info

Publication number
DE282742C
DE282742C DENDAT282742D DE282742DA DE282742C DE 282742 C DE282742 C DE 282742C DE NDAT282742 D DENDAT282742 D DE NDAT282742D DE 282742D A DE282742D A DE 282742DA DE 282742 C DE282742 C DE 282742C
Authority
DE
Germany
Prior art keywords
piston
drill
rotary piston
hammer
impact
Prior art date
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
DENDAT282742D
Other languages
German (de)
English (en)
Publication date
Application granted granted Critical
Publication of DE282742C publication Critical patent/DE282742C/de
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
    • E21B6/00—Drives for drilling with combined rotary and percussive action
    • E21B6/06—Drives for drilling with combined rotary and percussive action the rotation being intermittent, e.g. obtained by ratchet device
    • E21B6/08—Separate drives for percussion and rotation

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)
DENDAT282742D Expired DE282742C (en:Method)

Publications (1)

Publication Number Publication Date
DE282742C true DE282742C (en:Method) 1900-01-01

Family

ID=538369

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT282742D Expired DE282742C (en:Method)

Country Status (1)

Country Link
DE (1) DE282742C (en:Method)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914723C (de) * 1949-02-03 1954-07-08 Wallram Hartmetall Bohrer fuer Gesteinsdrehbohrmaschinen
WO2003064805A1 (en) * 2001-12-14 2003-08-07 Wassara Ab Liquid driven downhole drilling machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE914723C (de) * 1949-02-03 1954-07-08 Wallram Hartmetall Bohrer fuer Gesteinsdrehbohrmaschinen
WO2003064805A1 (en) * 2001-12-14 2003-08-07 Wassara Ab Liquid driven downhole drilling machine
US7040421B2 (en) 2001-12-14 2006-05-09 Wassara Ab Liquid driven downhole drilling machine
AU2002354376B2 (en) * 2001-12-14 2007-04-26 Wassara Ab Liquid driven downhole drilling machine
CN1313698C (zh) * 2001-12-14 2007-05-02 瓦萨拉股份公司 液体驱动井下钻机

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