CA2309942A1 - Casing centralizer - Google Patents

Casing centralizer Download PDF

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Publication number
CA2309942A1
CA2309942A1 CA 2309942 CA2309942A CA2309942A1 CA 2309942 A1 CA2309942 A1 CA 2309942A1 CA 2309942 CA2309942 CA 2309942 CA 2309942 A CA2309942 A CA 2309942A CA 2309942 A1 CA2309942 A1 CA 2309942A1
Authority
CA
Canada
Prior art keywords
centralizer
tubing
casing centralizer
joint
outer sleeve
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
CA 2309942
Other languages
French (fr)
Other versions
CA2309942C (en
Inventor
Per G. Angman
Robert M. Tessari
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.)
Tesco Corp Canada
Original Assignee
Tesco Corp Canada
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 Tesco Corp Canada filed Critical Tesco Corp Canada
Priority to CA 2309942 priority Critical patent/CA2309942C/en
Publication of CA2309942A1 publication Critical patent/CA2309942A1/en
Application granted granted Critical
Publication of CA2309942C publication Critical patent/CA2309942C/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
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well

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)

Abstract

A tubing centralizer for borehole drilling disclosed. The centralizer includes a retaining collar and an outer sleeve. In a method for installing the centralizer onto a joint of tubing, the retaining collar is mounted onto the joint of tubing and the outer sleeve is installed thereover.
CA 2309942 2000-05-29 2000-05-29 Casing centralizer Expired - Lifetime CA2309942C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA 2309942 CA2309942C (en) 2000-05-29 2000-05-29 Casing centralizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA 2309942 CA2309942C (en) 2000-05-29 2000-05-29 Casing centralizer

Publications (2)

Publication Number Publication Date
CA2309942A1 true CA2309942A1 (en) 2001-11-29
CA2309942C CA2309942C (en) 2007-01-30

Family

ID=4166300

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2309942 Expired - Lifetime CA2309942C (en) 2000-05-29 2000-05-29 Casing centralizer

Country Status (1)

Country Link
CA (1) CA2309942C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147257A1 (en) * 2006-06-22 2007-12-27 Boart Longyear Global Holdco Inc. Stabilizer for drill strings
CN114991687A (en) * 2022-06-30 2022-09-02 江苏赛瑞机器人装备有限公司 Be applied to oil development's intelligent sucker rod equipment
CN115405238A (en) * 2022-10-14 2022-11-29 东营华辰石油装备有限公司 Casing centralizer with adaptive diameter-changing function
CN118774630A (en) * 2024-08-12 2024-10-15 中国地质科学院勘探技术研究所 A downhole centralizer

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007147257A1 (en) * 2006-06-22 2007-12-27 Boart Longyear Global Holdco Inc. Stabilizer for drill strings
US7954566B2 (en) 2006-06-22 2011-06-07 Boart Longyear Global Holdco Inc. Stabilizer for drill strings
CN114991687A (en) * 2022-06-30 2022-09-02 江苏赛瑞机器人装备有限公司 Be applied to oil development's intelligent sucker rod equipment
CN114991687B (en) * 2022-06-30 2023-08-18 江苏赛瑞机器人装备有限公司 Be applied to oil exploitation's intelligent sucker rod device equipment
CN115405238A (en) * 2022-10-14 2022-11-29 东营华辰石油装备有限公司 Casing centralizer with adaptive diameter-changing function
CN115405238B (en) * 2022-10-14 2024-06-11 东营华辰石油装备有限公司 Casing centralizer with adaptive variable diameter function
CN118774630A (en) * 2024-08-12 2024-10-15 中国地质科学院勘探技术研究所 A downhole centralizer
CN118774630B (en) * 2024-08-12 2025-09-09 中国地质科学院勘探技术研究所 Underground centralizer

Also Published As

Publication number Publication date
CA2309942C (en) 2007-01-30

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Legal Events

Date Code Title Description
EEER Examination request