Selectively operational cleaning tool

Details Selectively operational cleaning tool Selectively operational cleaning tool

2006-10-17

2006-10-17

Dang, Hoang (Department: 3672)

Wells

Processes

Cleaning or unloading well

C166S174000

Reexamination Certificate

active

07121343

ABSTRACT:
A downhole cleaning tool (10) for oil and gas wells. Brushes, scraper, wipers (32) and the like are mounted on a sleeve (14) over a tubular body (12), and the members successively moved towards and away from an inner surface of a tubular to be cleaned. Movement is created by a jarring action on the tool with the sleeve traveling over undulating profiles (26) on the body to actuate the cleaning members. The tool may be deployed on a slickline or wireline.

REFERENCES:
patent: 206242 (1878-07-01), Jeannerat et al.
patent: 2857141 (1958-10-01), Carpenter
patent: 4291764 (1981-09-01), Pampell
patent: 4558738 (1985-12-01), Howard, Sr.
patent: 4671355 (1987-06-01), Strange
patent: 5351758 (1994-10-01), Henderson et al.
patent: 6152221 (2000-11-01), Carmichael et al.

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