GB2405213B - Downhole magnetic field based feature detector - Google Patents

Downhole magnetic field based feature detector

Info

Publication number
GB2405213B
GB2405213B GB0423897A GB0423897A GB2405213B GB 2405213 B GB2405213 B GB 2405213B GB 0423897 A GB0423897 A GB 0423897A GB 0423897 A GB0423897 A GB 0423897A GB 2405213 B GB2405213 B GB 2405213B
Authority
GB
United Kingdom
Prior art keywords
magnetic field
field based
based feature
feature detector
downhole magnetic
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
GB0423897A
Other versions
GB2405213A (en
GB0423897D0 (en
Inventor
James S Almaguer
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.)
Schlumberger Holdings Ltd
Original Assignee
Schlumberger Holdings 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 US10/028,835 external-priority patent/US6768299B2/en
Application filed by Schlumberger Holdings Ltd filed Critical Schlumberger Holdings Ltd
Publication of GB0423897D0 publication Critical patent/GB0423897D0/en
Publication of GB2405213A publication Critical patent/GB2405213A/en
Application granted granted Critical
Publication of GB2405213B publication Critical patent/GB2405213B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/26—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with magnetic or electric fields produced or modified either by the surrounding earth formation or by the detecting device

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Remote Sensing (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Geology (AREA)
  • Geophysics (AREA)
  • Electromagnetism (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB0423897A 2001-12-20 2002-12-03 Downhole magnetic field based feature detector Expired - Fee Related GB2405213B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/028,835 US6768299B2 (en) 2001-12-20 2001-12-20 Downhole magnetic-field based feature detector
GB0228121A GB2387657B (en) 2001-12-20 2002-12-03 Downhole magnetic field based feature detector

Publications (3)

Publication Number Publication Date
GB0423897D0 GB0423897D0 (en) 2004-12-01
GB2405213A GB2405213A (en) 2005-02-23
GB2405213B true GB2405213B (en) 2005-07-27

Family

ID=34105978

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0423897A Expired - Fee Related GB2405213B (en) 2001-12-20 2002-12-03 Downhole magnetic field based feature detector
GB0423896A Expired - Fee Related GB2405212B (en) 2001-12-20 2002-12-03 Downhole magnetic field based feature detector

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0423896A Expired - Fee Related GB2405212B (en) 2001-12-20 2002-12-03 Downhole magnetic field based feature detector

Country Status (1)

Country Link
GB (2) GB2405213B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7239145B2 (en) * 2004-03-29 2007-07-03 Schlumberger Technology Center Subsurface electromagnetic measurements using cross-magnetic dipoles
GB2422622A (en) * 2005-01-31 2006-08-02 Pathfinder Energy Services Inc Method For Locating Casing Joints Using A Measurement While Drilling Tool
FR2914007B1 (en) * 2007-03-20 2009-05-29 Geo Energy Sa PROBE FOR ANALYZING AN ASSEMBLY OF RODS OR TUBES
CN109594970A (en) * 2018-10-15 2019-04-09 中国石油天然气股份有限公司 Online monitoring method and system for tubular column erosion
US11762120B2 (en) * 2018-11-29 2023-09-19 Baker Hughes Holdings Llc Power-efficient transient electromagnetic evaluation system and method
CN110439541B (en) * 2019-08-21 2023-11-03 中国石油天然气集团有限公司 Casing coupling positioner and positioning method by means of friction positioning

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808925A (en) * 1987-11-19 1989-02-28 Halliburton Company Three magnet casing collar locator
GB2310042A (en) * 1996-02-05 1997-08-13 Applied Tech Ass Casing joint locator and counter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3845381A (en) * 1973-04-12 1974-10-29 Schlumberger Technology Corp High-resolution magnetic anomaly detector for well bore piping
US3883797A (en) * 1974-06-20 1975-05-13 Abram Lvovich Abrukin Apparatus for checking the continuity of metallic pipes using an oscillator whose frequency changes at discontinuities

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4808925A (en) * 1987-11-19 1989-02-28 Halliburton Company Three magnet casing collar locator
GB2310042A (en) * 1996-02-05 1997-08-13 Applied Tech Ass Casing joint locator and counter

Also Published As

Publication number Publication date
GB2405212A (en) 2005-02-23
GB0423896D0 (en) 2004-12-01
GB2405213A (en) 2005-02-23
GB0423897D0 (en) 2004-12-01
GB2405212B (en) 2005-07-27

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20171203