DE192753C - - Google Patents

Info

Publication number
DE192753C
DE192753C DENDAT192753D DE192753DA DE192753C DE 192753 C DE192753 C DE 192753C DE NDAT192753 D DENDAT192753 D DE NDAT192753D DE 192753D A DE192753D A DE 192753DA DE 192753 C DE192753 C DE 192753C
Authority
DE
Germany
Prior art keywords
extension
cylinder
chisels
chisel
bit
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.)
Active
Application number
DENDAT192753D
Other languages
German (de)
English (en)
Publication of DE192753C publication Critical patent/DE192753C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/26Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • E21B10/322Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools cutter shifted by fluid pressure

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)
DENDAT192753D Active DE192753C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE192753C true DE192753C (enrdf_load_stackoverflow)

Family

ID=456047

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT192753D Active DE192753C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE192753C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740508A1 (fr) * 1995-10-31 1997-04-30 Elf Aquitaine Stabilisateur realeseur pour le forage d'un puits petrolier

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2740508A1 (fr) * 1995-10-31 1997-04-30 Elf Aquitaine Stabilisateur realeseur pour le forage d'un puits petrolier
EP0771932A1 (fr) * 1995-10-31 1997-05-07 Elf Aquitaine Production Stabilisateur réaléseur pour le forage de puits pétroliers
US5788000A (en) * 1995-10-31 1998-08-04 Elf Aquitaine Production Stabilizer-reamer for drilling an oil well

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