Method for terminating or reducing water flow in a...

Details Method for terminating or reducing water flow in a... Method for terminating or reducing water flow in a...

2011-01-25

2011-01-25

Bates, Zakiya W. (Department: 3676)

Wells

Processes

Chemical inter-reaction of two or more introduced materials

C166S281000, C166S305100, C166S307000, C166S371000, C166S402000

Reexamination Certificate

active

07874363

ABSTRACT:
A method of conditioning well bores and reducing the deleterious effects of water production in a subterranean formation by placing an aqueous phase polymer and/or resin, which at a designated set up time, solidifies and blocks water conduits and establishes post treatment gas and oil permeability. Novel polymers and/or resins for use as a water barrier are typified by phenolformaldehyde containing 1-2 weight % of at least one of sodium bisulphite, sodium metabisulphite or mixtures thereof. The method includes selecting a well having sizable hydrocarbon reserves with a production history of decrease of oil or gas production with concurrent increase of water production.

REFERENCES:
patent: 5094762 (1992-03-01), Lahalih
patent: 1277936 (1990-12-01), None
patent: 2062070 (1981-05-01), None
patent: WO2004104368 (2004-12-01), None
patent: WO2005040551 (2005-05-01), None
patent: WO2006037959 (2006-04-01), None

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