Gel for retarding water flow
Patent
·
OSTI ID:6533176
A process is described for forming, in situ, a gel in a porous structure comprising: introducing an effective amount of a gel-forming composition into pores of a porous structure; and allowing the gel-forming composition to form a gel in the pores. The thusly formed gel is capable of being formed by reacting an aqueous solution comprising a first substance selected from the group consisting of polyvinyl alcohols, polyvinyl alcohol copolymers, and mixtures thereof. A second substance comprises aldehyde operable for effecting a crosslinking reaction with the first substance, wherein the total amount of aldehyde is from about 0.005 to about 2.5% of the weight of the gel.
- Assignee:
- Cities Service Oil and Gas Corp., Tulsa, OK
- Patent Number(s):
- US 4664194
- OSTI ID:
- 6533176
- Country of Publication:
- United States
- Language:
- English
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