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GB2409482B - Drill pipe protector - Google Patents

Drill pipe protector

Info

Publication number
GB2409482B
GB2409482B GB0505920A GB0505920A GB2409482B GB 2409482 B GB2409482 B GB 2409482B GB 0505920 A GB0505920 A GB 0505920A GB 0505920 A GB0505920 A GB 0505920A GB 2409482 B GB2409482 B GB 2409482B
Authority
GB
United Kingdom
Prior art keywords
drill pipe
pipe protector
protector
drill
pipe
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 - Lifetime
Application number
GB0505920A
Other versions
GB0505920D0 (en
GB2409482A (en
Inventor
Brian Mitchell
Norman Bruce Moore
Andrew Dale Fuller
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.)
WWT International Inc
Original Assignee
WWT 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 US10/407,093 external-priority patent/US6739415B2/en
Application filed by WWT International Inc filed Critical WWT International Inc
Publication of GB0505920D0 publication Critical patent/GB0505920D0/en
Publication of GB2409482A publication Critical patent/GB2409482A/en
Application granted granted Critical
Publication of GB2409482B publication Critical patent/GB2409482B/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1042—Elastomer protector or centering means
    • 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
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1057—Centralising devices with rollers or with a relatively rotating sleeve
    • E21B17/1064—Pipes or rods with a relatively rotating sleeve

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB0505920A 2003-04-04 2004-03-23 Drill pipe protector Expired - Lifetime GB2409482B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/407,093 US6739415B2 (en) 1999-01-06 2003-04-04 Drill pipe protector
GB0406477A GB2400124B (en) 2003-04-04 2004-03-23 Drill pipe protector

Publications (3)

Publication Number Publication Date
GB0505920D0 GB0505920D0 (en) 2005-04-27
GB2409482A GB2409482A (en) 2005-06-29
GB2409482B true GB2409482B (en) 2005-11-30

Family

ID=34655239

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0505923A Expired - Lifetime GB2409484B (en) 2003-04-04 2004-03-23 Drill pipe protector
GB0505922A Expired - Lifetime GB2409483B (en) 2003-04-04 2004-03-23 Drill pipe protector
GB0505920A Expired - Lifetime GB2409482B (en) 2003-04-04 2004-03-23 Drill pipe protector

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB0505923A Expired - Lifetime GB2409484B (en) 2003-04-04 2004-03-23 Drill pipe protector
GB0505922A Expired - Lifetime GB2409483B (en) 2003-04-04 2004-03-23 Drill pipe protector

Country Status (1)

Country Link
GB (3) GB2409484B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013120192A1 (en) * 2012-02-19 2013-08-22 Top-Co Inc. Casing centralizing device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938853A (en) * 1974-05-01 1976-02-17 Christensen Diamond Products Company Shrink-fit sleeve apparatus for drill strings
US4199011A (en) * 1978-03-20 1980-04-22 H. Niemeyer Gmbh Sleeve for drill pipes
US4436118A (en) * 1977-07-25 1984-03-13 Smith International, Inc. Sleeved drill pipe
US5465759A (en) * 1994-03-22 1995-11-14 Hydril Company Variable diameter pipe protector
US6250405B1 (en) * 1999-01-06 2001-06-26 Western Well Tool, Inc. Drill pipe protector assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938853A (en) * 1974-05-01 1976-02-17 Christensen Diamond Products Company Shrink-fit sleeve apparatus for drill strings
US4436118A (en) * 1977-07-25 1984-03-13 Smith International, Inc. Sleeved drill pipe
US4199011A (en) * 1978-03-20 1980-04-22 H. Niemeyer Gmbh Sleeve for drill pipes
US5465759A (en) * 1994-03-22 1995-11-14 Hydril Company Variable diameter pipe protector
US6250405B1 (en) * 1999-01-06 2001-06-26 Western Well Tool, Inc. Drill pipe protector assembly

Also Published As

Publication number Publication date
GB2409483B (en) 2005-11-30
GB2409483A (en) 2005-06-29
GB2409484A (en) 2005-06-29
GB0505920D0 (en) 2005-04-27
GB2409482A (en) 2005-06-29
GB0505923D0 (en) 2005-04-27
GB0505922D0 (en) 2005-04-27
GB2409484B (en) 2005-11-30

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20240322