GB2446085B - Downhole apparatus - Google Patents

Downhole apparatus

Info

Publication number
GB2446085B
GB2446085B GB0808075A GB0808075A GB2446085B GB 2446085 B GB2446085 B GB 2446085B GB 0808075 A GB0808075 A GB 0808075A GB 0808075 A GB0808075 A GB 0808075A GB 2446085 B GB2446085 B GB 2446085B
Authority
GB
United Kingdom
Prior art keywords
downhole apparatus
downhole
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
GB0808075A
Other versions
GB0808075D0 (en
GB2446085A (en
Inventor
Arthur Doacey 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.)
Stable Services Ltd
Original Assignee
Stable Services Ltd
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 GB0505183A external-priority patent/GB0505183D0/en
Application filed by Stable Services Ltd filed Critical Stable Services Ltd
Priority to GB0808075A priority Critical patent/GB2446085B/en
Publication of GB0808075D0 publication Critical patent/GB0808075D0/en
Publication of GB2446085A publication Critical patent/GB2446085A/en
Application granted granted Critical
Publication of GB2446085B publication Critical patent/GB2446085B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • 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
    • E21B10/00—Drill bits
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
    • 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
    • E21B17/1078—Stabilisers or centralisers for casing, tubing or drill pipes
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/14—Casing shoes for the protection of the bottom of the casing
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • 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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor

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)
GB0808075A 2005-03-14 2006-03-14 Downhole apparatus Expired - Fee Related GB2446085B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0808075A GB2446085B (en) 2005-03-14 2006-03-14 Downhole apparatus

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US66155805P 2005-03-14 2005-03-14
GB0505183A GB0505183D0 (en) 2005-03-14 2005-03-14 Furniture
GBGB0505163.6A GB0505163D0 (en) 2005-03-14 2005-03-14 Downhole apparatus
GB0605092A GB2424234B (en) 2005-03-14 2006-03-14 Downhole apparatus
GB0808075A GB2446085B (en) 2005-03-14 2006-03-14 Downhole apparatus

Publications (3)

Publication Number Publication Date
GB0808075D0 GB0808075D0 (en) 2008-06-11
GB2446085A GB2446085A (en) 2008-07-30
GB2446085B true GB2446085B (en) 2009-04-22

Family

ID=42173631

Family Applications (3)

Application Number Title Priority Date Filing Date
GBGB0505163.6A Ceased GB0505163D0 (en) 2005-03-14 2005-03-14 Downhole apparatus
GB0808075A Expired - Fee Related GB2446085B (en) 2005-03-14 2006-03-14 Downhole apparatus
GB0605092A Expired - Fee Related GB2424234B (en) 2005-03-14 2006-03-14 Downhole apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0505163.6A Ceased GB0505163D0 (en) 2005-03-14 2005-03-14 Downhole apparatus

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0605092A Expired - Fee Related GB2424234B (en) 2005-03-14 2006-03-14 Downhole apparatus

Country Status (2)

Country Link
GB (3) GB0505163D0 (en)
WO (1) WO2006097706A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2682630A1 (en) * 2009-10-14 2011-04-14 Norman Prokopchuk Drill pipe with threaded extensions
HUE052867T2 (en) * 2015-09-14 2021-05-28 European Drilling Projects B V Monolithic blade stabiliser tool for drill string
CN109236204B (en) * 2018-10-11 2020-11-24 合肥驰峰机械有限公司 Double-channel oil production pipe column

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2361498A (en) * 1999-01-06 2001-10-24 Western Well Tool Inc Drill pipe protector assembly
US6666267B1 (en) * 1997-11-15 2003-12-23 Brunel Oilfield Services (Uk) Limited Downhole tools
EP1650400A1 (en) * 2004-10-20 2006-04-26 European Drilling Projects B.V. Drill string stabiliser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2247564A (en) * 1938-07-18 1941-07-01 Percy R Turner Coupling protector
US4467879A (en) * 1982-03-29 1984-08-28 Richard D. Hawn, Jr. Well bore tools
NO844544L (en) * 1984-09-13 1986-03-14 Metal X Corp Of Texas DRILLING STRING STABILIZER.
EP0240490A1 (en) * 1985-10-08 1987-10-14 Shell Offshore Inc. Turbulence cementing sub
US4984633A (en) * 1989-10-20 1991-01-15 Weatherford U.S., Inc. Nozzle effect protectors, centralizers, and stabilizers and related methods
US6739415B2 (en) * 1999-01-06 2004-05-25 Western Well Tool, Inc. Drill pipe protector
GB9929000D0 (en) * 1999-12-09 2000-02-02 Bbl Downhole Tools Ltd Reamer shoe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6666267B1 (en) * 1997-11-15 2003-12-23 Brunel Oilfield Services (Uk) Limited Downhole tools
GB2361498A (en) * 1999-01-06 2001-10-24 Western Well Tool Inc Drill pipe protector assembly
EP1650400A1 (en) * 2004-10-20 2006-04-26 European Drilling Projects B.V. Drill string stabiliser

Also Published As

Publication number Publication date
GB0605092D0 (en) 2006-04-26
GB0505163D0 (en) 2005-04-20
GB2424234A (en) 2006-09-20
GB0808075D0 (en) 2008-06-11
GB2446085A (en) 2008-07-30
GB2424234B (en) 2008-10-15
WO2006097706A1 (en) 2006-09-21

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20100218 AND 20100224

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20110314