Borehole plug and method

Details Borehole plug and method Borehole plug and method

1987-05-26

1989-07-11

Novosad, Stephen J.

Wells

Processes

Cementing, plugging or consolidating

166 63, 166292, 166300, 277 34, 102333, 206532, 156305, E21B 3313

Patent

active

048462780

ABSTRACT:
An inflatable borehole plug is disclosed, the inflation of which is achieved by chemical reaction of two co-reagents disposed therein which results in evolution of a gas. The borehole plug can be dropped or lowered down a borehole to a preselected position since the extent of gas-producing chemical reaction is able to be delayed following initiation of mixing of co-reagents, by delay means in the borehole plug, for sufficient time to enable placement of the borehole plug.

REFERENCES:
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patent: 3809224 (1974-05-01), Greenwood
patent: 3964948 (1976-06-01), Busse
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patent: 4519866 (1985-05-01), Stol
patent: 4633946 (1987-01-01), Jackson
patent: 4674570 (1987-06-01), Jackson

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