NO994471L - Brönninnretning for kapping og knusing - Google Patents

Brönninnretning for kapping og knusing

Info

Publication number
NO994471L
NO994471L NO994471A NO994471A NO994471L NO 994471 L NO994471 L NO 994471L NO 994471 A NO994471 A NO 994471A NO 994471 A NO994471 A NO 994471A NO 994471 L NO994471 L NO 994471L
Authority
NO
Norway
Prior art keywords
cutting
arms
working position
wellbore
stabilizing
Prior art date
Application number
NO994471A
Other languages
English (en)
Other versions
NO994471D0 (no
Inventor
David D Hearn
Charles M Hightower
Stephen L Ward
Charles D Hailey
Original Assignee
Atlantic Richfield Co
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
Publication of NO994471L publication Critical patent/NO994471L/no
Application filed by Atlantic Richfield Co filed Critical Atlantic Richfield Co
Publication of NO994471D0 publication Critical patent/NO994471D0/no

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
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill 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
    • E21B10/322—Drill 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
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • 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

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Milling Processes (AREA)
  • Crushing And Grinding (AREA)
  • Sawing (AREA)

Abstract

Innretning for avskjæring og fjer-ning av en seksjon av et brønnrør, f.eks. et foringsrør i et brønnhull, omfattende en skjæreenhet (22) med et legeme (23) og på dette monterte, mot-satt anordnede skjærearmer (30, 34) som kan skyves radialt ut fra en til-baketrukken stilling til en arbeidsstil-ling for kontakt med brønnrørets indre veggflate, og for å skjære gjennom brønnrøret som følge av rotasjon av innretningen, hvor et trykkdrevet stempel (64) kan bevege skjærearmene fra den tilbaketrukne stilling til arbeidsstillingen, hvor motstående anordnede stabi-lisatorarmer (38) kan beveges mellom en tilbaketrukket stilling og en arbeids-stilling, omfattende flater (42, 44) på armene for kontakt med en rørvegg for å stabilisere og sentrere innretningen i røret, og et trykkdrevet stempel for å bevege stabilisatorarmene (38) til arbeidsstillingen, hvor stabiliserings-armene (38) er motstående stabilise-ringsarmer og at innretningen videre omfatter et andre trykkdrevet stempel (70) for å hjelpe det første stempel til å holde skjæredelene i arbeidsstillingen.
NO994471A 1992-03-25 1999-09-15 Brönninnretning for kapping og knusing NO994471D0 (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/857,212 US5265675A (en) 1992-03-25 1992-03-25 Well conduit cutting and milling apparatus and method
PCT/US1993/002464 WO1993019281A1 (en) 1992-03-25 1993-03-23 Well conduit cutting and milling apparatus and method

Publications (2)

Publication Number Publication Date
NO994471L true NO994471L (no) 1994-10-31
NO994471D0 NO994471D0 (no) 1999-09-15

Family

ID=25325468

Family Applications (3)

Application Number Title Priority Date Filing Date
NO943545A NO309875B1 (no) 1992-03-25 1994-09-23 Innretning og fremgangsmÕte for avskjæring og fjerning av en seksjon ev et brønnrør
NO994471A NO994471D0 (no) 1992-03-25 1999-09-15 Brönninnretning for kapping og knusing
NO994470A NO994470D0 (no) 1992-03-25 1999-09-15 Brönninnretning for kapping og knusing

Family Applications Before (1)

Application Number Title Priority Date Filing Date
NO943545A NO309875B1 (no) 1992-03-25 1994-09-23 Innretning og fremgangsmÕte for avskjæring og fjerning av en seksjon ev et brønnrør

Family Applications After (1)

Application Number Title Priority Date Filing Date
NO994470A NO994470D0 (no) 1992-03-25 1999-09-15 Brönninnretning for kapping og knusing

Country Status (5)

Country Link
US (1) US5265675A (no)
EP (3) EP0877146A3 (no)
CA (1) CA2132858A1 (no)
NO (3) NO309875B1 (no)
WO (1) WO1993019281A1 (no)

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Also Published As

Publication number Publication date
CA2132858A1 (en) 1993-09-30
NO943545L (no) 1994-10-31
EP0631646A1 (en) 1995-01-04
EP0878603A2 (en) 1998-11-18
EP0631646B1 (en) 1999-08-04
NO994470D0 (no) 1999-09-15
NO994470L (no) 1994-10-31
NO943545D0 (no) 1994-09-23
EP0877146A3 (en) 1999-03-10
EP0877146A2 (en) 1998-11-11
EP0878603A3 (en) 1999-03-10
WO1993019281A1 (en) 1993-09-30
NO309875B1 (no) 2001-04-09
US5265675A (en) 1993-11-30
NO994471D0 (no) 1999-09-15
EP0631646A4 (en) 1996-04-17

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