Amino resin modified xanthan polymer gels for permeability profi

Wells – Processes – Cementing – plugging or consolidating

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166294, E21B 33138, E21B 4312

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active

047169664

ABSTRACT:
A composition of matter wherein amino resins such as melamine formaldehyde ("MF") resins modify biopolymers thereby forming gels with transitional metal ions useful for profile control where said polymers have amine, amide, hydroxyl and thiol functionalities. Said gels are thermally stable, brine tolerant and rehealable. Said resin modified biopolymers can be used in their liquid or ungelled state as a mobility control agent in a reservoir during the removal of hydrocarbonaceous fluids therefrom.

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