Method of locating and determining the extent of corrosion in tu

Details Method of locating and determining the extent of corrosion in tu Method of locating and determining the extent of corrosion in tu

1985-11-18

1988-06-14

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Magnetic

Magnetic sensor within material

364507, G01N 2772, G01N 2782, G01R 3312, G06F 1520

Patent

active

047514612

ABSTRACT:
A method for determining the type of corrosion present in deteriorating pipes. An inspection instrument is passed through a length of casing to determine the extent of corrosive deterioration. The resulting measurements generated by the inspection instrument are processed to exclude those responses caused by the structural configuration of the casing length under inspection. The remaining responses of one of the measurements are then analyzed to provide useful information regarding the type of corrosion present at defects in the casing length under inspection and to further provide information necessary to make a detailed analysis of the defects present in the casing length under inspection.

REFERENCES:
patent: 3543144 (1970-11-01), Walters et al.
patent: 3675118 (1972-07-01), Booth
patent: 4144149 (1980-03-01), Holt et al.
patent: 4292589 (1981-09-01), Bonner
patent: 4365198 (1982-12-01), Toth
patent: 4631688 (1986-12-01), Boehm et al.
"Dresser Atlas Casing Evaluation Services", published Aug. 1985, pp. 17-40.

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