Process for eliminating clays from rocks and sedimentary environments
CA 1205282 A · Owner: Dunogues, Jacques P. · Inventors: Dunogues, Jacques P.; Duffaut, Charles N.; Le Ribault, Loic
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for eliminating clays from rocks and sedimentary environments, in particular rocks that are reservoirs of hydrocarbons, and/or water and/or natural, gas, or bituminous schists or asphaltic sands, consisting, in applying into the said sedimentary environments or rocks organo-silicon compounds of one of these two formulae': (A) (B), in which :, - n is a whole number between 1 and 1,000 and preferably between 1 and 50;, - p,q and r are whole numbers between 0 and 1,000 and preferably between 0 to 50;, - R and R' represent a group that is linear aliphatic ramified or cyclic, saturated or not, ramified heterolinear or not, saturated cyclic or not aromatic, hetero-, aromatic, …
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 June 3, 1986. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 3, 2003.
- 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.