PH18984A - Eddy current method and apparatus for inspecting ferromagnetic tubular members - Google Patents

Eddy current method and apparatus for inspecting ferromagnetic tubular members

Info

Publication number
PH18984A
PH18984A PH23990A PH23990A PH18984A PH 18984 A PH18984 A PH 18984A PH 23990 A PH23990 A PH 23990A PH 23990 A PH23990 A PH 23990A PH 18984 A PH18984 A PH 18984A
Authority
PH
Philippines
Prior art keywords
casing
coils
anomalies
magnetic field
inspection apparatus
Prior art date
Application number
PH23990A
Other languages
English (en)
Inventor
Stephen Drew Bonner
Original Assignee
Schlumberger Overseas
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21894251&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=PH18984(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Schlumberger Overseas filed Critical Schlumberger Overseas
Publication of PH18984A publication Critical patent/PH18984A/en

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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9013—Arrangements for scanning
    • G01N27/902—Arrangements for scanning by moving the sensors
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/006—Detection of corrosion or deposition of substances
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/08—Measuring diameters or related dimensions at the borehole
    • E21B47/085—Measuring diameters or related dimensions at the borehole using radiant means, e.g. acoustic, radioactive or electromagnetic
    • 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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/09—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes
    • E21B47/092—Locating or determining the position of objects in boreholes or wells, e.g. the position of an extending arm; Identifying the free or blocked portions of pipes by detecting magnetic anomalies
    • 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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/904—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents with two or more sensors
    • 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
    • G01N27/90—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents
    • G01N27/9046—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws using eddy currents by analysing electrical signals

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geophysics (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
  • Liquid Crystal (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Paints Or Removers (AREA)
PH23990A 1979-05-09 1980-05-08 Eddy current method and apparatus for inspecting ferromagnetic tubular members PH18984A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/037,423 US4292589A (en) 1979-05-09 1979-05-09 Eddy current method and apparatus for inspecting ferromagnetic tubular members

Publications (1)

Publication Number Publication Date
PH18984A true PH18984A (en) 1985-11-29

Family

ID=21894251

Family Applications (1)

Application Number Title Priority Date Filing Date
PH23990A PH18984A (en) 1979-05-09 1980-05-08 Eddy current method and apparatus for inspecting ferromagnetic tubular members

Country Status (14)

Country Link
US (1) US4292589A (ru)
EP (1) EP0019091B1 (ru)
AT (1) ATE9739T1 (ru)
AU (1) AU538285B2 (ru)
BR (1) BR8002804A (ru)
CA (1) CA1151731A (ru)
DE (1) DE3069336D1 (ru)
EG (1) EG14451A (ru)
ES (1) ES8104488A1 (ru)
IE (1) IE49789B1 (ru)
MX (1) MX4995E (ru)
NO (1) NO156588C (ru)
PH (1) PH18984A (ru)
SU (1) SU1376950A3 (ru)

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US3940689A (en) * 1974-05-14 1976-02-24 Schlumberger Technology Corporation Combined eddy current and leakage field detector for well bore piping using a unique magnetizer core structure
CA1014226A (en) * 1975-06-12 1977-07-19 Valentino S. Cecco Circumferentially differentiating multiple coil eddy current probe
FR2324003A1 (fr) * 1975-09-09 1977-04-08 Commissariat Energie Atomique Procede de controle non destructif par courants de foucault et dispositif correspondant, utilisant une excitation multifrequence et permettant l'elimination de certains parametres
US4016519A (en) * 1976-05-14 1977-04-05 Blaupunkt-Werke Gmbh Printed circuit coils

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NO156588C (no) 1987-10-14
DE3069336D1 (en) 1984-11-08
ES491275A0 (es) 1981-04-16
US4292589A (en) 1981-09-29
BR8002804A (pt) 1980-12-16
IE800953L (en) 1980-11-09
ES8104488A1 (es) 1981-04-16
EP0019091B1 (en) 1984-10-03
AU5823280A (en) 1980-11-13
SU1376950A3 (ru) 1988-02-23
EG14451A (en) 1985-03-31
IE49789B1 (en) 1985-12-11
ATE9739T1 (de) 1984-10-15
AU538285B2 (en) 1984-08-09
NO801037L (no) 1980-11-10
EP0019091A1 (en) 1980-11-26
CA1151731A (en) 1983-08-09
NO156588B (no) 1987-07-06
MX4995E (es) 1983-01-31

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