Melamine/formaldehyde cross-linking of polymers for profile cont

Details Melamine/formaldehyde cross-linking of polymers for profile cont Melamine/formaldehyde cross-linking of polymers for profile cont

1986-12-11

1988-11-29

Suchfield, George A.

Wells

Processes

Distinct, separate injection and producing wells

166274, 166295, 523130, E21B 33138, E21B 4316, E21B 4320

Patent

active

047874511

ABSTRACT:
An improved process for forming improved gels where biopolymers and synthetic polymers are cross-linked with melamine/formaldehyde and other amino resins at an optimal range of ratios of amine to aldehyde in the amino resins. This optimal range of ratios can vary from about 1:6 to about 1:30 amine to aldehyde. Resins utilized in said optimal range are most effective for producing improved firm, stable gels. The resultant gels are useful in waterflooding and carbon dioxide flooding operations during the recovery of hydrocarboneaceous fluids.

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Hawley, Gessner G., The Condensed Chemical Dictionary, Eighth Edition, 1971, pp. 912.

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