Isolation plug

Details Isolation plug Isolation plug

1981-02-17

1984-01-10

Leppink, James A.

Wells

Processes

Graveling or filter forming

166 51, 166181, 166133, E21B 4304

Patent

active

044248644

ABSTRACT:
Apparatus and methods are provided for isolating a zone of a well bore from a portion of the well bore located above the zone, to prevent communication between the zone and the portion of the well bore located thereabove.

REFERENCES:
patent: 1975162 (1934-10-01), Layne
patent: 2192236 (1940-03-01), Nalley, Jr.
patent: 2297308 (1942-09-01), Layne
patent: 2299057 (1942-10-01), McClain
patent: 2738016 (1956-03-01), Lynes
patent: 2776015 (1957-01-01), Bielstein
patent: 2906338 (1959-09-01), Shook
patent: 2927640 (1960-03-01), Kenneday
patent: 3032108 (1962-05-01), Bielstein
patent: 3042116 (1962-07-01), Sharp et al.
patent: 3211231 (1965-10-01), Bramlett
patent: 3306366 (1967-02-01), Muse
patent: 3381755 (1968-05-01), Morrison
patent: 3455387 (1969-07-01), Peters
patent: 3627045 (1971-12-01), Lebourg
Composite Catalog of Oil Field Equipment and Services, 33rd revision, 1978-1979, published by World Oil, at vol. 3, pp. 5322 and 5404E.

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