Method of determining the quality of steam for stimulating hydrocarbon production
CA 1319841 C · Owner: Texaco Development Corporation · Inventors: Sigwardt, Peter Lee; Redus, Clifford Lee; Chien, Sze-Foo
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
METHOD OF DETERMINING THE QUALITY OF STEAM FOR STIMULATING HYDROCARBON PRODUCTION (D#78,696,-F), ABSTRACT, The use of an orifice plate in series with a critical flow choke provides a method of measurement for both steam quality and mass flowrate. Neither the orifice plate or the choke alone can be used to measure steam quality and mass flowrate. However, an expression for steam quality through both devices is obtained by solving an independent mass flowrate equation for each device - an equation for wet steam through the critical flow choke and an equation for wet steam through a sharp edged orifice plate.
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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 July 6, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended July 6, 2010.
- 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.