FR2276587A1 - Dispositif de controle de la continuite des tubes metalliques - Google Patents

Dispositif de controle de la continuite des tubes metalliques

Info

Publication number
FR2276587A1
FR2276587A1 FR7422323A FR7422323A FR2276587A1 FR 2276587 A1 FR2276587 A1 FR 2276587A1 FR 7422323 A FR7422323 A FR 7422323A FR 7422323 A FR7422323 A FR 7422323A FR 2276587 A1 FR2276587 A1 FR 2276587A1
Authority
FR
France
Prior art keywords
pipe
transformers
amplifier circuit
turns
instrument
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
FR7422323A
Other languages
English (en)
French (fr)
Other versions
FR2276587B1 (https=
Inventor
Abram Lvovich Abrukin
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.)
NEFTEGAZOVY INST
Original Assignee
NEFTEGAZOVY INST
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 NEFTEGAZOVY INST filed Critical NEFTEGAZOVY INST
Priority to FR7422323A priority Critical patent/FR2276587A1/fr
Publication of FR2276587A1 publication Critical patent/FR2276587A1/fr
Application granted granted Critical
Publication of FR2276587B1 publication Critical patent/FR2276587B1/fr
Granted 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
    • 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
    • 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

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
FR7422323A 1974-06-26 1974-06-26 Dispositif de controle de la continuite des tubes metalliques Granted FR2276587A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7422323A FR2276587A1 (fr) 1974-06-26 1974-06-26 Dispositif de controle de la continuite des tubes metalliques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7422323A FR2276587A1 (fr) 1974-06-26 1974-06-26 Dispositif de controle de la continuite des tubes metalliques

Publications (2)

Publication Number Publication Date
FR2276587A1 true FR2276587A1 (fr) 1976-01-23
FR2276587B1 FR2276587B1 (https=) 1976-12-24

Family

ID=9140555

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7422323A Granted FR2276587A1 (fr) 1974-06-26 1974-06-26 Dispositif de controle de la continuite des tubes metalliques

Country Status (1)

Country Link
FR (1) FR2276587A1 (https=)

Also Published As

Publication number Publication date
FR2276587B1 (https=) 1976-12-24

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Legal Events

Date Code Title Description
ST Notification of lapse