NO911265D0 - SCRAP MILLING. - Google Patents

SCRAP MILLING.

Info

Publication number
NO911265D0
NO911265D0 NO911265A NO911265A NO911265D0 NO 911265 D0 NO911265 D0 NO 911265D0 NO 911265 A NO911265 A NO 911265A NO 911265 A NO911265 A NO 911265A NO 911265 D0 NO911265 D0 NO 911265D0
Authority
NO
Norway
Prior art keywords
scrap
milling
scrap milling
Prior art date
Application number
NO911265A
Other languages
Norwegian (no)
Other versions
NO911265L (en
Inventor
Horace E Gilbert
Graham R Stronach
Original Assignee
Smith Int North Sea
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 Smith Int North Sea filed Critical Smith Int North Sea
Publication of NO911265D0 publication Critical patent/NO911265D0/en
Publication of NO911265L publication Critical patent/NO911265L/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
NO91911265A 1990-03-29 1991-03-27 SCRAP MILLING. NO911265L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB909007023A GB9007023D0 (en) 1990-03-29 1990-03-29 Junk mill

Publications (2)

Publication Number Publication Date
NO911265D0 true NO911265D0 (en) 1991-03-27
NO911265L NO911265L (en) 1991-09-30

Family

ID=10673466

Family Applications (1)

Application Number Title Priority Date Filing Date
NO91911265A NO911265L (en) 1990-03-29 1991-03-27 SCRAP MILLING.

Country Status (2)

Country Link
GB (2) GB9007023D0 (en)
NO (1) NO911265L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0577545A1 (en) * 1992-06-19 1994-01-05 Broder Ag Drill bit
CN2685530Y (en) * 2004-03-09 2005-03-16 伍利钱 Drill bits for enlarging the borehole
US7753139B2 (en) 2005-07-06 2010-07-13 Smith International, Inc. Cutting device with multiple cutting structures
US8186458B2 (en) 2005-07-06 2012-05-29 Smith International, Inc. Expandable window milling bit and methods of milling a window in casing
GB2569330B (en) 2017-12-13 2021-01-06 Nov Downhole Eurasia Ltd Downhole devices and associated apparatus and methods
DE102018105340A1 (en) * 2018-03-08 2019-09-12 Mhwirth Gmbh Drilling head and this comprehensive drilling system
CN109723385B (en) * 2019-01-17 2021-03-19 西南石油大学 PDC drill bit with diameter-keeping and reducing functions

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3195636A (en) * 1962-09-07 1965-07-20 Servco Co Apparatus for cutting and milling in well bores

Also Published As

Publication number Publication date
GB2242379A (en) 1991-10-02
GB9007023D0 (en) 1990-05-30
GB2242379B (en) 1993-07-28
GB9106006D0 (en) 1991-05-08
NO911265L (en) 1991-09-30

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