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WO2009134143A3 - Top mill tool - Google Patents

Top mill tool Download PDF

Info

Publication number
WO2009134143A3
WO2009134143A3 PCT/NO2009/000165 NO2009000165W WO2009134143A3 WO 2009134143 A3 WO2009134143 A3 WO 2009134143A3 NO 2009000165 W NO2009000165 W NO 2009000165W WO 2009134143 A3 WO2009134143 A3 WO 2009134143A3
Authority
WO
WIPO (PCT)
Prior art keywords
top mill
situated
cutting blades
tool shaft
borehole
Prior art date
Application number
PCT/NO2009/000165
Other languages
French (fr)
Other versions
WO2009134143A2 (en
Inventor
Tore Weltzin
Brikt Rathour Hansen
Original Assignee
Statoilhydro Asa
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 Statoilhydro Asa filed Critical Statoilhydro Asa
Publication of WO2009134143A2 publication Critical patent/WO2009134143A2/en
Publication of WO2009134143A3 publication Critical patent/WO2009134143A3/en

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

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)
  • Milling Processes (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Earth Drilling (AREA)

Abstract

A top mill for positioning in a borehole and removing an upper portion of a tubular element, such as a casing, situated in the borehole is comprising a tool shaft (1), a stabiizer provided with a plurality of stabilizer ribs (2), and a plurality of cutting blades (3) formed with cutting discs (4), the cutting blades being situated in a portion (5) of the tool shaft (1) above the stabilizer ribs (2), wherein the shaft portion (5) is laterally displaced with regard to the rotational axis of the top mill. It is also discloses a top mill having the cutting blades situated in a lower portion of the tool shaft and covered by an outer and inner cylinder extending longitudinally along faces thereof.
PCT/NO2009/000165 2008-04-29 2009-04-28 Top mill tool WO2009134143A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20082041A NO329445B1 (en) 2008-04-29 2008-04-29 Toppfreseverktoy
NO20082041 2008-04-29

Publications (2)

Publication Number Publication Date
WO2009134143A2 WO2009134143A2 (en) 2009-11-05
WO2009134143A3 true WO2009134143A3 (en) 2010-01-07

Family

ID=40974458

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2009/000165 WO2009134143A2 (en) 2008-04-29 2009-04-28 Top mill tool

Country Status (2)

Country Link
NO (1) NO329445B1 (en)
WO (1) WO2009134143A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108194044A (en) * 2018-02-23 2018-06-22 中国石油天然气股份有限公司 Grind shoe

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1805806A (en) * 1930-03-07 1931-05-19 Grant Expanding reaming or cutting tool
US2014804A (en) * 1932-03-04 1935-09-17 Frank J Hinderliter Fishing tool
US2481637A (en) * 1945-02-23 1949-09-13 A 1 Bit & Tool Company Combined milling tool and pipe puller
US2690218A (en) * 1950-04-22 1954-09-28 Earl J Robishaw Method of severing and milling a well casing
US3753470A (en) * 1970-11-27 1973-08-21 Sandvik Ab Eccentric drill tool
US5018580A (en) * 1988-11-21 1991-05-28 Uvon Skipper Section milling tool
US5058666A (en) * 1988-04-15 1991-10-22 Tri-State Oil Tools, Inc. Cutting tool for removing materials from well bore
WO2001036782A1 (en) * 1999-11-12 2001-05-25 Shell Internationale Research Maatschappij B.V. Drill bit with eccentric body
CA2230987C (en) * 1995-09-22 2006-09-19 Weatherford/Lamb, Inc. Milling apparatus for a borehole casing

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1805806A (en) * 1930-03-07 1931-05-19 Grant Expanding reaming or cutting tool
US2014804A (en) * 1932-03-04 1935-09-17 Frank J Hinderliter Fishing tool
US2481637A (en) * 1945-02-23 1949-09-13 A 1 Bit & Tool Company Combined milling tool and pipe puller
US2690218A (en) * 1950-04-22 1954-09-28 Earl J Robishaw Method of severing and milling a well casing
US3753470A (en) * 1970-11-27 1973-08-21 Sandvik Ab Eccentric drill tool
US5058666A (en) * 1988-04-15 1991-10-22 Tri-State Oil Tools, Inc. Cutting tool for removing materials from well bore
US5018580A (en) * 1988-11-21 1991-05-28 Uvon Skipper Section milling tool
CA2230987C (en) * 1995-09-22 2006-09-19 Weatherford/Lamb, Inc. Milling apparatus for a borehole casing
WO2001036782A1 (en) * 1999-11-12 2001-05-25 Shell Internationale Research Maatschappij B.V. Drill bit with eccentric body

Also Published As

Publication number Publication date
WO2009134143A2 (en) 2009-11-05
NO329445B1 (en) 2010-10-25
NO20082041L (en) 2009-10-30

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