Method for controlled gelation of silicates

Wells – Processes – Chemical inter-reaction of two or more introduced materials

Reexamination Certificate

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C166S293000, C166S369000, C507S203000

Reexamination Certificate

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07926567

ABSTRACT:
A process for forming a gel, which process comprises mixing an alkaline silicate solution with a polymer in solid form, the polymer being capable of being converted by hydrolysis into one or more organic acids; and allowing the polymer to release sufficient acid to cause formation of a silicate gel.

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patent: 2006/0086501 (2006-04-01), Creel et al.
patent: 2006/0234871 (2006-10-01), Dalrymple et al.
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International Search Report mailed Jul. 11, 2006.

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