Methods of treating subterranean well formations
CA 1107048 A · Owner: Halliburton Company · Inventors: Misak, Marvin D.; Briscoe, James E.; Elphingstone, Eugene A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, A method of treating a subterranean well formation wherein a highly viscous thixotropic treating fluid is introduced into the formation. The highly viscous thixotropic treating fluid is formed by combining an aqueous acid solution with an aqueous alkali metal silicate solution whereby a polymerized alkali metal silicate gel is produced followed by shearing of the gel to impart thixotropic properties thereto.
Read the whole patent
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 August 18, 1981. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended August 18, 1998.
- 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.