GB2251015B - A remedial bottom hole assembly for cutting and removing casing from a borehole - Google Patents

A remedial bottom hole assembly for cutting and removing casing from a borehole

Info

Publication number
GB2251015B
GB2251015B GB9126742A GB9126742A GB2251015B GB 2251015 B GB2251015 B GB 2251015B GB 9126742 A GB9126742 A GB 9126742A GB 9126742 A GB9126742 A GB 9126742A GB 2251015 B GB2251015 B GB 2251015B
Authority
GB
United Kingdom
Prior art keywords
remedial
borehole
cutting
bottom hole
hole assembly
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.)
Expired - Fee Related
Application number
GB9126742A
Other versions
GB9126742D0 (en
GB2251015A (en
Inventor
Horace E Gilbert
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith International Inc
Original Assignee
Smith International Inc
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 International Inc filed Critical Smith International Inc
Publication of GB9126742D0 publication Critical patent/GB9126742D0/en
Publication of GB2251015A publication Critical patent/GB2251015A/en
Application granted granted Critical
Publication of GB2251015B publication Critical patent/GB2251015B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/16—Grappling tools, e.g. tongs or grabs combined with cutting or destroying means
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve
GB9126742A 1990-12-21 1991-12-17 A remedial bottom hole assembly for cutting and removing casing from a borehole Expired - Fee Related GB2251015B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US63226190A 1990-12-21 1990-12-21

Publications (3)

Publication Number Publication Date
GB9126742D0 GB9126742D0 (en) 1992-02-12
GB2251015A GB2251015A (en) 1992-06-24
GB2251015B true GB2251015B (en) 1994-11-16

Family

ID=24534789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9126742A Expired - Fee Related GB2251015B (en) 1990-12-21 1991-12-17 A remedial bottom hole assembly for cutting and removing casing from a borehole

Country Status (1)

Country Link
GB (1) GB2251015B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19620756A1 (en) 1996-05-23 1997-11-27 Wirth Co Kg Masch Bohr Method and device for cutting pipes or pillars anchored in the ground
NO330750B1 (en) * 2009-09-10 2011-07-04 Bruce Alan Flanders Well tool and method for cutting and extracting a rudder portion from a rudder string in a well
US8881819B2 (en) * 2011-05-16 2014-11-11 Baker Hughes Incorporated Tubular cutting with a sealed annular space and fluid flow for cuttings removal
NO346736B1 (en) * 2021-04-30 2022-12-05 Archer Oiltools As Axial position-controlled operation toolstring and method
CN115613981B (en) * 2022-12-15 2023-03-03 山东成林石油工程技术有限公司 Downhole jet flow blockage removing pipe column

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498603A (en) * 1975-06-02 1978-01-25 A Z Int Tool Co Method of and apparatus for cutting and recovering of submarine surface casing and guide base
GB1590454A (en) * 1976-04-26 1981-06-03 Int Enterprises Inc Method of cutting and retrieving casing from a well bore

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1498603A (en) * 1975-06-02 1978-01-25 A Z Int Tool Co Method of and apparatus for cutting and recovering of submarine surface casing and guide base
GB1590454A (en) * 1976-04-26 1981-06-03 Int Enterprises Inc Method of cutting and retrieving casing from a well bore

Also Published As

Publication number Publication date
GB9126742D0 (en) 1992-02-12
GB2251015A (en) 1992-06-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20011217