CA2337543A1 - Downhole drilling apparatus and method for use of same - Google Patents

Downhole drilling apparatus and method for use of same Download PDF

Info

Publication number
CA2337543A1
CA2337543A1 CA002337543A CA2337543A CA2337543A1 CA 2337543 A1 CA2337543 A1 CA 2337543A1 CA 002337543 A CA002337543 A CA 002337543A CA 2337543 A CA2337543 A CA 2337543A CA 2337543 A1 CA2337543 A1 CA 2337543A1
Authority
CA
Canada
Prior art keywords
whipstock
window
housing
drill bit
disposed
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
CA002337543A
Other languages
French (fr)
Other versions
CA2337543C (en
Inventor
John Hanton
Tommie A. Freeman
William M. Imwalle
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.)
Halliburton Energy Services Inc
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to CA2595026A priority Critical patent/CA2595026C/en
Priority to CA002595029A priority patent/CA2595029C/en
Priority claimed from GB0107222A external-priority patent/GB2373520B/en
Publication of CA2337543A1 publication Critical patent/CA2337543A1/en
Application granted granted Critical
Publication of CA2337543C publication Critical patent/CA2337543C/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
    • E21B7/061—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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (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)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)

Abstract

A downhole drilling apparatus for interconnection in a casing or liner string having a drill bit disposed thereon for enabling the drilling of intersecting wellbores without removal of the drill bit is disclosed. In a disclosed embodiment, the apparatus comprises a housing having a window. A whipstock is disposed within the housing. Between the window and the whipstock is a filler. The whipstock and the filler define a central bore providing a fluid path through the apparatus. A back pressure valve may be disposed within the central bore to prevent back flow of fluids through the apparatus. Once the total depth of an initial wellbore is reached, the casing or liner string, including the apparatus, may be cemented in place. Thereafter, an intersecting wellbore may be drilled by laterally deflecting a second drill bit with the whipstock through the window of the housing.
CA002337543A 2000-02-18 2001-02-16 Downhole drilling apparatus and method for use of same Expired - Fee Related CA2337543C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2595026A CA2595026C (en) 2000-02-18 2001-02-16 Downhole drilling apparatus and method for use of same
CA002595029A CA2595029C (en) 2000-02-18 2001-02-16 Downhole drilling apparatus and method for use of same

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/507,254 2000-02-18
US09/507,254 US6374924B2 (en) 2000-02-18 2000-02-18 Downhole drilling apparatus
GB0107222A GB2373520B (en) 2000-02-18 2001-03-22 Downhole drilling apparatus and method for use of same

Related Child Applications (2)

Application Number Title Priority Date Filing Date
CA002595029A Division CA2595029C (en) 2000-02-18 2001-02-16 Downhole drilling apparatus and method for use of same
CA2595026A Division CA2595026C (en) 2000-02-18 2001-02-16 Downhole drilling apparatus and method for use of same

Publications (2)

Publication Number Publication Date
CA2337543A1 true CA2337543A1 (en) 2001-08-18
CA2337543C CA2337543C (en) 2007-10-02

Family

ID=26245881

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002337543A Expired - Fee Related CA2337543C (en) 2000-02-18 2001-02-16 Downhole drilling apparatus and method for use of same

Country Status (3)

Country Link
US (2) US6374924B2 (en)
CA (1) CA2337543C (en)
NO (1) NO319536B1 (en)

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US9625361B1 (en) 2001-08-19 2017-04-18 Smart Drilling And Completion, Inc. Methods and apparatus to prevent failures of fiber-reinforced composite materials under compressive stresses caused by fluids and gases invading microfractures in the materials
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US6899186B2 (en) * 2002-12-13 2005-05-31 Weatherford/Lamb, Inc. Apparatus and method of drilling with casing
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USRE42877E1 (en) 2003-02-07 2011-11-01 Weatherford/Lamb, Inc. Methods and apparatus for wellbore construction and completion
GB2414502B (en) 2003-02-27 2007-10-17 Weatherford Lamb Drill shoe
US6913082B2 (en) * 2003-02-28 2005-07-05 Halliburton Energy Services, Inc. Reduced debris milled multilateral window
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GB2414759B (en) 2003-04-04 2007-11-07 Weatherford Lamb Method and apparatus for handling wellbore tubulars
US7650944B1 (en) 2003-07-11 2010-01-26 Weatherford/Lamb, Inc. Vessel for well intervention
US7264067B2 (en) 2003-10-03 2007-09-04 Weatherford/Lamb, Inc. Method of drilling and completing multiple wellbores inside a single caisson
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CA2514136C (en) 2004-07-30 2011-09-13 Weatherford/Lamb, Inc. Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly
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Also Published As

Publication number Publication date
US6550550B2 (en) 2003-04-22
US20010047883A1 (en) 2001-12-06
NO20010793D0 (en) 2001-02-16
US6374924B2 (en) 2002-04-23
CA2337543C (en) 2007-10-02
NO319536B1 (en) 2005-08-29
US20020056572A1 (en) 2002-05-16
NO20010793L (en) 2001-08-20

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EEER Examination request
MKLA Lapsed

Effective date: 20180216