Composition and method for recovering hydrocarbon fluids...

Details Composition and method for recovering hydrocarbon fluids... Composition and method for recovering hydrocarbon fluids...

2006-01-10

2006-01-10

Walker, Zakiya (Department: 3672)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Polymers from only ethylenic monomers or processes of...

C526S286000, C526S304000, C526S307000, C526S310000, C526S312000, C166S295000, C523S130000

Reexamination Certificate

active

06984705

ABSTRACT:
A composition comprising expandable cross linked polymeric microparticles having an unexpanded volume average particle size diameter of from about 0.05 to about 10 microns and a cross linking agent content of from about 9,000 to about 200,000 ppm of labile cross linkers and from 0 to about 300 ppm of non-labile cross linkers. The composition is used for modifying the permeability of subterranean formations and increasing the mobilization and/or recovery rate of hydrocarbon fluids present in the formations.

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