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GB2341629B - Window-cutting system for downhole tubulars - Google Patents

Window-cutting system for downhole tubulars

Info

Publication number
GB2341629B
GB2341629B GB9929387A GB9929387A GB2341629B GB 2341629 B GB2341629 B GB 2341629B GB 9929387 A GB9929387 A GB 9929387A GB 9929387 A GB9929387 A GB 9929387A GB 2341629 B GB2341629 B GB 2341629B
Authority
GB
United Kingdom
Prior art keywords
window
cutting system
downhole tubulars
tubulars
downhole
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
GB9929387A
Other versions
GB9929387D0 (en
GB2341629A (en
Inventor
Hans H Rehbock
John Joseph Johnson
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes 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
Priority claimed from US08/528,091 external-priority patent/US5676206A/en
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of GB9929387D0 publication Critical patent/GB9929387D0/en
Publication of GB2341629A publication Critical patent/GB2341629A/en
Application granted granted Critical
Publication of GB2341629B publication Critical patent/GB2341629B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B29/06—Cutting windows, e.g. directional window cutters for whipstock operations
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock

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)
GB9929387A 1995-09-14 1996-09-10 Window-cutting system for downhole tubulars Expired - Fee Related GB2341629B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/528,091 US5676206A (en) 1995-09-14 1995-09-14 Window-cutting system for downhole tubulars
GB9709606A GB2310231B (en) 1995-09-14 1996-09-10 Window-cutting system for downhole tubulars

Publications (3)

Publication Number Publication Date
GB9929387D0 GB9929387D0 (en) 2000-02-09
GB2341629A GB2341629A (en) 2000-03-22
GB2341629B true GB2341629B (en) 2000-05-31

Family

ID=26311521

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9929387A Expired - Fee Related GB2341629B (en) 1995-09-14 1996-09-10 Window-cutting system for downhole tubulars

Country Status (1)

Country Link
GB (1) GB2341629B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105604515B (en) * 2016-02-29 2018-09-21 河北中荣石油机械有限责任公司 Recoverable slant machine and its recycling tool

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103622A (en) * 1936-07-25 1937-12-28 Robert B Kinzbach Side tracking apparatus
US5109924A (en) * 1989-12-22 1992-05-05 Baker Hughes Incorporated One trip window cutting tool method and apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2103622A (en) * 1936-07-25 1937-12-28 Robert B Kinzbach Side tracking apparatus
US5109924A (en) * 1989-12-22 1992-05-05 Baker Hughes Incorporated One trip window cutting tool method and apparatus

Also Published As

Publication number Publication date
GB9929387D0 (en) 2000-02-09
GB2341629A (en) 2000-03-22

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Legal Events

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

Effective date: 20020910