CA2137936A1 - Retrievable Whipstock Arrangement and Method - Google Patents

Retrievable Whipstock Arrangement and Method

Info

Publication number
CA2137936A1
CA2137936A1 CA2137936A CA2137936A CA2137936A1 CA 2137936 A1 CA2137936 A1 CA 2137936A1 CA 2137936 A CA2137936 A CA 2137936A CA 2137936 A CA2137936 A CA 2137936A CA 2137936 A1 CA2137936 A1 CA 2137936A1
Authority
CA
Canada
Prior art keywords
whipstock
anchor
well bore
latch
engaged
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.)
Granted
Application number
CA2137936A
Other languages
French (fr)
Other versions
CA2137936C (en
Inventor
Britt Oliver Braddick
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.)
TIW Corp
Original Assignee
TIW Corp
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 TIW Corp filed Critical TIW Corp
Priority to GB9500248A priority Critical patent/GB2291447B/en
Priority to CA002137936A priority patent/CA2137936C/en
Priority to PCT/US1994/001939 priority patent/WO1995023274A1/en
Publication of CA2137936A1 publication Critical patent/CA2137936A1/en
Application granted granted Critical
Publication of CA2137936C publication Critical patent/CA2137936C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells

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)

Abstract

An anchor (A) is secured in a cased well bore by a setting tool (T) having latch (10) that releasably secures with the anchor (A). The whipstock (27) has surfaces (33) which are engaged with shaft surfaces (32) at the earth's surface to orient the whipstock to face in a desired direction. The whipstock (27) is then lowered into a cased well bore and releasably latched to the anchor (A) by latch (35) engaged in recess (3) of the anchor and secured against rotation by surface (31d) engaged in whipstock latching surface (8) on the anchor (A). A lateral well bore can then be drilled from the cased well bore in the desired direction and at the desired elevation. The whipstock (27) may be connected with a drill string (DS) for lowering into an anchor (A) in the well bore. If desired, an ordinary well string (53) with latch arrangement (77) cooperates with latch arrangement (78) in the whipstock (27) to retrieve the whipstock from the anchor (A), or to position the whipstock in the anchor (A).
CA002137936A 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method Expired - Lifetime CA2137936C (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9500248A GB2291447B (en) 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method
CA002137936A CA2137936C (en) 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method
PCT/US1994/001939 WO1995023274A1 (en) 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA002137936A CA2137936C (en) 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method
PCT/US1994/001939 WO1995023274A1 (en) 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method

Publications (2)

Publication Number Publication Date
CA2137936A1 true CA2137936A1 (en) 1995-08-24
CA2137936C CA2137936C (en) 1999-05-11

Family

ID=25677666

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002137936A Expired - Lifetime CA2137936C (en) 1994-02-23 1994-02-23 Retrievable whipstock arrangement and method

Country Status (3)

Country Link
CA (1) CA2137936C (en)
GB (1) GB2291447B (en)
WO (1) WO1995023274A1 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5740864A (en) * 1996-01-29 1998-04-21 Baker Hughes Incorporated One-trip packer setting and whipstock-orienting method and apparatus
US5947201A (en) * 1996-02-06 1999-09-07 Baker Hughes Incorporated One-trip window-milling method
CA2223517C (en) * 1996-12-05 2004-02-24 John C. Gano Mill guide and anchor assembly for subterranean well casings
US6308782B1 (en) * 1998-01-30 2001-10-30 Halliburton Energy Services, Inc Method and apparatus for one-trip insertion and retrieval of a tool and auxiliary device
US6070667A (en) * 1998-02-05 2000-06-06 Halliburton Energy Services, Inc. Lateral wellbore connection
GB2340519B (en) 1998-08-03 2002-06-12 Smith International Deflector tool
CA2308944C (en) 1999-05-19 2008-04-01 Smith International, Inc. Well reference apparatus and method
US6543536B2 (en) 1999-05-19 2003-04-08 Smith International, Inc. Well reference apparatus and method
US6499537B1 (en) 1999-05-19 2002-12-31 Smith International, Inc. Well reference apparatus and method
GB2567225B (en) 2017-10-06 2020-02-26 Priority Drilling Ltd Directional drilling

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2669429A (en) * 1951-11-06 1954-02-16 John A Zublin Apparatus for drilling deviating bores utilizing a plurality of curved tubular drillguide sections
US3115935A (en) * 1960-03-18 1963-12-31 Jefferson M Hooton Well device
US3011568A (en) * 1960-03-24 1961-12-05 Irve C Grimm Apparatus for drilling holes deviating laterally from a straight bore
US4307780A (en) * 1980-07-21 1981-12-29 Baker International Corporation Angular whipstock alignment means
US5154231A (en) * 1990-09-19 1992-10-13 Masx Energy Services Group, Inc. Whipstock assembly with hydraulically set anchor
US5193620A (en) * 1991-08-05 1993-03-16 Tiw Corporation Whipstock setting method and apparatus
US5439051A (en) * 1994-01-26 1995-08-08 Baker Hughes Incorporated Lateral connector receptacle

Also Published As

Publication number Publication date
GB9500248D0 (en) 1995-11-15
GB2291447A (en) 1996-01-24
CA2137936C (en) 1999-05-11
WO1995023274A1 (en) 1995-08-31
GB2291447B (en) 1998-02-18

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Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20140224