In-situ emulsion polymerization of ethylene derivatives

Details In-situ emulsion polymerization of ethylene derivatives In-situ emulsion polymerization of ethylene derivatives

1990-08-10

1991-09-17

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166273, 166274, 166281, 166295, 523130, E21B 33138, E21B 4322

Patent

active

050486071

ABSTRACT:
A profile control method for closing off a more permeable zone of a formation where water, high fluid flow, or high perssures are encountered. A water-external emulsion containing a monomer, a cross-linker, free radical initiators and reaction inhibitors is injected into the formation. There they react to form plastic-like solid spheres in the more permeable formation zone. Because the spheres are not water soluble and have high compressive strength, they can be used in severe flow applications. Ethylene, propylene and styrene monomers can be utilized to form solid spheres of polyethylene, polypropylene or polystyrene.

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