Pump plug for use in well operations

Details Pump plug for use in well operations Pump plug for use in well operations

1981-09-08

1982-11-02

Novosad, Stephen J.

Wells

Pistons, fluid driven into well

166192, E21B 2308

Patent

active

043568653

ABSTRACT:
A pump plug for use in through-the-flowline well operations, including a sleeve provided with annular sealing fins, which fins are flexible in both directions of the central axis of the sleeve. Support means are mounted on the sleeve for supporting the sealing fins in each of the flexed positions thereof.

REFERENCES:
patent: 2205739 (1940-06-01), Wilson
patent: 2332984 (1943-10-01), Brackeen
patent: 2427632 (1947-09-01), Stephens
patent: 3104714 (1963-09-01), Terrel et al.
patent: 3251416 (1966-05-01), Kiel
patent: 3434539 (1969-03-01), Merritt
patent: 3437137 (1969-04-01), Scott

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