Sand consolidation methods
CA 1307457 C · Owner: Surles, Billy Wayne · Inventors: Surles, Billy Wayne; Friedman, Robert Harold
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
SAND CONSOLIDATION METHODS D# 78,909-F, Methods are provided for selectively consolidating naturally occurring mineral grains such as sand within a subterranean formation to form a fluid permeable barrier which restrains the movement of sand particles when oil passes through the barrier. A fluid comprising a polymerizable resin such as an oligomer of furfuryl alcohol and as a diluent a polar organic, solvent such as butylacetate and an oil soluble slightly, water-soluble acid catalyst such as orthonitrobenzoic acid is provided and injected into the formation to be consolidated. Water which is at least 70% saturated with respect to sodium chloride or other effective inorganic salt is then …
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted September 15, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended September 15, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.