GB2334734B - Borehole sidetracking apparatus - Google Patents

Borehole sidetracking apparatus

Info

Publication number
GB2334734B
GB2334734B GB9913851A GB9913851A GB2334734B GB 2334734 B GB2334734 B GB 2334734B GB 9913851 A GB9913851 A GB 9913851A GB 9913851 A GB9913851 A GB 9913851A GB 2334734 B GB2334734 B GB 2334734B
Authority
GB
United Kingdom
Prior art keywords
borehole
sidetracking apparatus
sidetracking
borehole sidetracking
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
GB9913851A
Other versions
GB9913851D0 (en
GB2334734A (en
Inventor
Joseph V Hebert
John E Campbell
Thomas F Bailey
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
Priority claimed from US08/594,492 external-priority patent/US5829531A/en
Application filed by Smith International Inc filed Critical Smith International Inc
Publication of GB9913851D0 publication Critical patent/GB9913851D0/en
Publication of GB2334734A publication Critical patent/GB2334734A/en
Application granted granted Critical
Publication of GB2334734B publication Critical patent/GB2334734B/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
    • E21B23/01—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for anchoring the tools or the like
    • 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
    • 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
GB9913851A 1996-01-31 1997-01-31 Borehole sidetracking apparatus Expired - Fee Related GB2334734B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/594,492 US5829531A (en) 1996-01-31 1996-01-31 Mechanical set anchor with slips pocket
GB9702094A GB2309721B (en) 1996-01-31 1997-01-31 Mechanical set anchor

Publications (3)

Publication Number Publication Date
GB9913851D0 GB9913851D0 (en) 1999-08-11
GB2334734A GB2334734A (en) 1999-09-01
GB2334734B true GB2334734B (en) 2000-03-08

Family

ID=26310913

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9913851A Expired - Fee Related GB2334734B (en) 1996-01-31 1997-01-31 Borehole sidetracking apparatus

Country Status (1)

Country Link
GB (1) GB2334734B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5909770A (en) * 1996-11-18 1999-06-08 Baker Hughes Incorporated Retrievable whipstock
GB2340519B (en) * 1998-08-03 2002-06-12 Smith International Deflector tool
NO20000281L (en) * 1999-01-21 2000-07-24 Baker Hughes Inc Single trip window milling device and method with measurement during drilling
GB2360538B (en) * 1999-01-21 2002-02-27 Baker Hughes Inc One-trip window milling apparatus and method with measurement-while-drilling
US6401821B1 (en) * 1999-12-23 2002-06-11 Re-Entry Technologies, Inc. Method and apparatus involving an integrated or otherwise combined exit guide and section mill for sidetracking or directional drilling from existing wellbores
US6715567B2 (en) * 2001-05-02 2004-04-06 Weatherford/Lamb, Inc. Apparatus and method for forming a pilot hole in a formation
US7124827B2 (en) 2004-08-17 2006-10-24 Tiw Corporation Expandable whipstock anchor assembly

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227038A (en) * 1989-01-11 1990-07-18 Drilex Syst Inc Whipstock starter mill with pressure drop tattletale
US5431220A (en) * 1994-03-24 1995-07-11 Smith International, Inc. Whipstock starter mill assembly
GB2291448A (en) * 1994-07-22 1996-01-24 Smith International Apparatus and method for orienting and setting a hydraulically actuated tool in a borehole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2227038A (en) * 1989-01-11 1990-07-18 Drilex Syst Inc Whipstock starter mill with pressure drop tattletale
US5431220A (en) * 1994-03-24 1995-07-11 Smith International, Inc. Whipstock starter mill assembly
GB2291448A (en) * 1994-07-22 1996-01-24 Smith International Apparatus and method for orienting and setting a hydraulically actuated tool in a borehole

Also Published As

Publication number Publication date
GB9913851D0 (en) 1999-08-11
GB2334734A (en) 1999-09-01

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Legal Events

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

Effective date: 20140131