초록 ▼

Stable, gel-forming aqueous microemulsions, well adopted for the reversible stabilization or plugging of soil/rock formations, e.g., subterranean well formations, are comprised of (i) an aqueous solution of a water-soluble alkali metal silicate, (ii) a gelling reagent therefor, and (iii) at least on

Stable, gel-forming aqueous microemulsions, well adopted for the reversible stabilization or plugging of soil/rock formations, e.g., subterranean well formations, are comprised of (i) an aqueous solution of a water-soluble alkali metal silicate, (ii) a gelling reagent therefor, and (iii) at least one surface active agent.

대표청구항 ▼

A stable, gel-forming composition of matter adopted for reversible soil stabilization, comprising an aqueous microemulsions of (i) an aqueous phase comprising an aqueous solution of a water-soluble alkali metal silicate, (ii) an organic phase comprising a gelling reagent therefor, said gelling reage

A stable, gel-forming composition of matter adopted for reversible soil stabilization, comprising an aqueous microemulsions of (i) an aqueous phase comprising an aqueous solution of a water-soluble alkali metal silicate, (ii) an organic phase comprising a gelling reagent therefor, said gelling reagent comprising an alkyl ester of a saturated or unsaturated aliphatic mono-, di- or polycarboxylic acid, an alkyl ester of a carbocyclic carboxylic acid, a dialkyl and/or trialkyl phosphate, a lactone, a lower alkylamide, or a ketoester, and (iii) at least one surface active agent for preparing the microemulsion of the organic phase and the aqueous phase. A method for the sealing/consolidation of a soil formation, comprising injecting therein the composition of matter as defined by claim 1 and permitting same to harden/hardening same. The method as defined by claim 6, said soil formation comprising an oil well.