Well head pipe stripper

Details Well head pipe stripper Well head pipe stripper

1985-06-20

1987-04-21

Novosad, Stephen J.

Wells

Above ground apparatus

With seal for reciprocating member

166177, 1510404, 277 24, E21B 3308

Patent

active

046588949

ABSTRACT:
A Pipe Guide Stripper Rubber stripper of modified Shaffer design has a resilient, molded frusto-conical stripper unit that mounts within a conventional standing compression shell supported on the drill or production platform. The molded stripper unit has an internal cavity with walls designed to strip sludge, mud and other grime from the pipe string periphery as the pipe is raised from the well bore, confining the muck to the well pit rather than having it fall to the work platform. A mounting plate is removably attached to the stripper unit by separable fasteners so that the plate may be recovered from a worn out molded stripper unit for further use without burning or abrading the stripper unit from the mounting plate.

REFERENCES:
patent: 582638 (1897-05-01), Gibson
patent: 2550487 (1951-04-01), MacClatchie
patent: 3052300 (1962-09-01), Hampton
patent: 3128614 (1964-04-01), Auer
patent: 3965987 (1976-06-01), Biffle
patent: 4304310 (1981-12-01), Garrett
patent: 4312404 (1982-01-01), Morrow
patent: 4363357 (1982-12-01), Hunter
patent: 4456062 (1984-06-01), Roche et al.
patent: 4531591 (1985-07-01), Johnston

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