Freely slidable paraffin scraping and removing tool for cleaning

Details Freely slidable paraffin scraping and removing tool for cleaning Freely slidable paraffin scraping and removing tool for cleaning

1975-07-28

1976-10-05

Leppink, James A.

Wells

Brushing, scraping, cutting or punching-type cleaners

Reciprocable relative to central member extending from well top

166176, E21B 3702

Patent

active

039839389

ABSTRACT:
A simple cylindrical paraffin scraping tool adapted to slidably ride up and down between spaced apart stop means on a sucker rod to scrape and remove hardened paraffin and similar deposits from the interior walls of oil well tubing with the scraping tools stored in operative readiness within the well during pumping of the oil well so that the scraping apparatus is immediately available when it becomes necessary to clean the well. Some minor preventive maintenance may be performed during continued pumping of the oil well by incidental agitation of the scrapers preventing and slowing the formation of deposits in the oil well tubing but the principal scraping operation occurs when and as the sucker rod line and attached plurality of scraper tools are pulled out of the well for periodic pump changes.

REFERENCES:
patent: 1755762 (1930-04-01), Armstrong et al.
patent: 1758995 (1930-04-01), Armstrong et al.
patent: 2846016 (1958-08-01), Hanes
patent: 3537519 (1970-11-01), Long

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