Real-time formation stability and drilling fluid formation interaction monitoring capability
CA 2412337 A1 · Owner: Jiao, Di · Inventors: Jiao, Di; Hakimuddin, Mustafa; Mody, Fersheed Khodadad
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A real-time method is disclosed for maintaining subterranean formation stability through monitoring the interaction between the formation and fluids introduced into (or produced from) a wellbore penetrating the formation. The method employs real-time wellbore (in)stability logging methodology. The method is exemplified by a Pore Pressure Transmission (PPT) test. In such test, test fluids are exposed to Pierre II shales (20 % w/w NaCl solution and sodium silicate fluid with 20 % w/w NaCl for example) in a PPT apparatus. , Membrane efficiency of the two fluids when exposed to the outcrop shale is calculated, and based on the simultaneous acquisition of acoustic data estimation of a …
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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
- Filed June 5, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 5, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 5, 2023.
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Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.