Casing scraper

Wells – Brushing – scraping – cutting or punching-type cleaners – On tubing or casing

Patent

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Details

E21B 3702

Patent

active

046484477

ABSTRACT:
A casing scraper which provides substantially 360.degree. of contact between the interior diameter of casing. The cutter blades of the casing scraper are of a segmented tubular shape to provide a substantially 360.degree. contact area. The segmented cutter blades are biased radially outwardly by springs oriented in an alignment housing between the supporting mandrel and the cutter blades.

REFERENCES:
patent: 2811210 (1957-10-01), Guillot
patent: 3011556 (1961-12-01), Best
patent: 3031016 (1962-04-01), Conrad
patent: 3326294 (1967-06-01), Neilson

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