Minimizing formation damage under adverse conditions during grav

Details Minimizing formation damage under adverse conditions during grav Minimizing formation damage under adverse conditions during grav

1987-05-12

1989-03-14

Neuder, William P.

Wells

Processes

Providing porous mass of adhered filter material in well

166278, E21B 4304

Patent

active

048117897

ABSTRACT:
A method for minimizing formation damage during gravel packing operations in a loosely consolidated hydrocarbonaceous fluid producing formation penetrated by at least one well. Solidifiable chemical blocking agents are used to keep intrusive fluids, e.g. kill fluids, from the hydrocarbonaceous fluid producing interval of said formation during said gravel packing operation. Said blocking agents comprise gels wherein amino resins such as melamine formaldehyde ("MF") resins co-gel and crosslink with polymers useful for profile control where said polymers have amine, amide, hydroxyl and thiol functionalities.

REFERENCES:
patent: 3983941 (1976-10-01), Fitch
patent: 4157322 (1979-06-01), Colegrove
patent: 4428427 (1984-01-01), Friedman
patent: 4664191 (1987-05-01), Jennings, Jr.

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