Minimizing formation damage under adverse conditions during gravel pack operations

摘要

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.