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GB2306985B - Improvements in milling - Google Patents

Improvements in milling

Info

Publication number
GB2306985B
GB2306985B GB9522809A GB9522809A GB2306985B GB 2306985 B GB2306985 B GB 2306985B GB 9522809 A GB9522809 A GB 9522809A GB 9522809 A GB9522809 A GB 9522809A GB 2306985 B GB2306985 B GB 2306985B
Authority
GB
United Kingdom
Prior art keywords
milling
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
GB9522809A
Other versions
GB9522809D0 (en
GB2306985A (en
Inventor
Hector Filippus Alexand Susman
Kenneth Rodrick Stewart
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.)
LEDINGHAM CHALMERS TRUSTEE COM
Original Assignee
LEDINGHAM CHALMERS TRUSTEE COM
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 LEDINGHAM CHALMERS TRUSTEE COM filed Critical LEDINGHAM CHALMERS TRUSTEE COM
Priority to GB9522809A priority Critical patent/GB2306985B/en
Publication of GB9522809D0 publication Critical patent/GB9522809D0/en
Publication of GB2306985A publication Critical patent/GB2306985A/en
Application granted granted Critical
Publication of GB2306985B publication Critical patent/GB2306985B/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/068—Deflecting the direction of boreholes drilled by a down-hole drilling motor
    • 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

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)
GB9522809A 1995-11-07 1995-11-07 Improvements in milling Expired - Fee Related GB2306985B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9522809A GB2306985B (en) 1995-11-07 1995-11-07 Improvements in milling

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9522809A GB2306985B (en) 1995-11-07 1995-11-07 Improvements in milling

Publications (3)

Publication Number Publication Date
GB9522809D0 GB9522809D0 (en) 1996-01-10
GB2306985A GB2306985A (en) 1997-05-14
GB2306985B true GB2306985B (en) 1999-06-02

Family

ID=10783530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9522809A Expired - Fee Related GB2306985B (en) 1995-11-07 1995-11-07 Improvements in milling

Country Status (1)

Country Link
GB (1) GB2306985B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20010011591A1 (en) * 1998-05-13 2001-08-09 Hector F. A. Van-Drentham Susman Guide device
CN1119499C (en) * 1998-06-10 2003-08-27 国际壳牌研究有限公司 Downhole milling device
GB2385341B (en) * 2002-02-15 2005-12-21 Target Well Control Ltd Casing reaming assembly
CN114922581B (en) * 2022-05-27 2023-08-18 重庆科技学院 A downhole casing continuous drilling device and its working method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425429A (en) * 1994-06-16 1995-06-20 Thompson; Michael C. Method and apparatus for forming lateral boreholes
WO1995019488A1 (en) * 1994-01-13 1995-07-20 Gary Lawrence Harris Downhole motor for a drilling apparatus
GB2299106A (en) * 1995-03-24 1996-09-25 Tiw Corp Whipstock and starter mill

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995019488A1 (en) * 1994-01-13 1995-07-20 Gary Lawrence Harris Downhole motor for a drilling apparatus
US5425429A (en) * 1994-06-16 1995-06-20 Thompson; Michael C. Method and apparatus for forming lateral boreholes
GB2299106A (en) * 1995-03-24 1996-09-25 Tiw Corp Whipstock and starter mill

Also Published As

Publication number Publication date
GB9522809D0 (en) 1996-01-10
GB2306985A (en) 1997-05-14

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Legal Events

Date Code Title Description
730 Substitution of applicants allowed (sect. 30/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20081107