Seismic drill hole surface plug

Details Seismic drill hole surface plug Seismic drill hole surface plug

1977-02-08

1978-01-03

Leppink, James A.

Wells

Packers or plugs

Cup type

F21B 3312

Patent

active

040661253

ABSTRACT:
There is disclosed a means for use in plugging a well including a flexible plug member having a series of alternating long and short fingers radiating outwards from a central area, the fingers having projections for engaging with the wall of the well and together forming a cup-shaped plug to hold concrete poured into the mouth of the well to provide a plug.

REFERENCES:
patent: 3039534 (1962-06-01), Koop
patent: 3126827 (1964-03-01), McReynolds, Jr.
patent: 3362478 (1968-01-01), McReynolds, Jr.
patent: 3419647 (1968-12-01), Hight et al.
patent: 3593785 (1971-07-01), Bassani

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