Production of hydrogen sulphide-containing gas from an underground formation
CA 1302872 C · Owner: Delude, Stephen Gerald · Inventors: Luinstra, Edward Adrian; Delude, Stephen Gerald
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Process for the production of at least a gaseous product containing a substantial amount of hydrogen sulphide via a borehole from an underground formation containing besides the hydrogen sulphide at least elemental sulphur, comprising the following steps:, -(a) injecting a liquid substantially consisting of hydrocarbons into the bore-hole or into the underground formation near to the end of the bore-hole, -(b) producing a gaseous and a liquid hydrocarbons-containing fraction from the underground formation -(c) separating the gaseous fraction from the liquid hydrocarbonscontaining fraction, -(d) if necessary separating an aqueous fraction from the hydrocarbons-containing fraction, -(e) …
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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 June 9, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 9, 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.