DE225326C - - Google Patents

Info

Publication number
DE225326C
DE225326C DENDAT225326D DE225326DA DE225326C DE 225326 C DE225326 C DE 225326C DE NDAT225326 D DENDAT225326 D DE NDAT225326D DE 225326D A DE225326D A DE 225326DA DE 225326 C DE225326 C DE 225326C
Authority
DE
Germany
Prior art keywords
cutting
wedge
cylinder
pipe
piston
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
DENDAT225326D
Other languages
German (de)
English (en)
Publication of DE225326C publication Critical patent/DE225326C/de
Active 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
    • E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window

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)
DENDAT225326D Active DE225326C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE225326C true DE225326C (enrdf_load_stackoverflow)

Family

ID=485980

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT225326D Active DE225326C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE225326C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6598678B1 (en) * 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6598678B1 (en) * 1999-12-22 2003-07-29 Weatherford/Lamb, Inc. Apparatus and methods for separating and joining tubulars in a wellbore

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