GB0704481D0 - Locators - Google Patents

Locators

Info

Publication number
GB0704481D0
GB0704481D0 GBGB0704481.1A GB0704481A GB0704481D0 GB 0704481 D0 GB0704481 D0 GB 0704481D0 GB 0704481 A GB0704481 A GB 0704481A GB 0704481 D0 GB0704481 D0 GB 0704481D0
Authority
GB
United Kingdom
Prior art keywords
locators
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.)
Withdrawn
Application number
GBGB0704481.1A
Other versions
GB2447288A (en
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.)
Aquaterra Energy Ltd
Original Assignee
Aquaterra Energy 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
Application filed by Aquaterra Energy Ltd filed Critical Aquaterra Energy Ltd
Priority to GB0704481A priority Critical patent/GB2447288A/en
Publication of GB0704481D0 publication Critical patent/GB0704481D0/en
Publication of GB2447288A publication Critical patent/GB2447288A/en
Withdrawn legal-status Critical Current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
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • 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
    • 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
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • 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

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)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
GB0704481A 2007-03-08 2007-03-08 Centraliser with removable or pivoted fins Withdrawn GB2447288A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB0704481A GB2447288A (en) 2007-03-08 2007-03-08 Centraliser with removable or pivoted fins

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0704481A GB2447288A (en) 2007-03-08 2007-03-08 Centraliser with removable or pivoted fins

Publications (2)

Publication Number Publication Date
GB0704481D0 true GB0704481D0 (en) 2007-04-18
GB2447288A GB2447288A (en) 2008-09-10

Family

ID=37988597

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0704481A Withdrawn GB2447288A (en) 2007-03-08 2007-03-08 Centraliser with removable or pivoted fins

Country Status (1)

Country Link
GB (1) GB2447288A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0905323D0 (en) * 2009-03-27 2009-05-13 Caledus Ltd Casing centraliser

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4245709A (en) * 1979-04-27 1981-01-20 Christensen, Inc. Removable drill string stabilizers
GB0001435D0 (en) * 2000-01-22 2000-03-08 Downhole Products Plc Centraliser
BR0210860A (en) * 2001-07-06 2004-06-29 Shell Int Research Centralizer for a radially expandable tubular element
CN1309934C (en) * 2001-07-10 2007-04-11 国际壳牌研究有限公司 Expandable wellbore stabiliser
US7048064B1 (en) * 2003-09-12 2006-05-23 Smith Larry W Multi-unit centralizer
CA2448723C (en) * 2003-11-07 2008-05-13 Halliburton Energy Services, Inc. Variable gauge drilling apparatus and method of assembly thereof
GB0505166D0 (en) * 2005-03-14 2005-04-20 Stewart Arthur Multi-function downhole tool

Also Published As

Publication number Publication date
GB2447288A (en) 2008-09-10

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)