Method of controlling proppant flowback in a well
CA 2386424 A1 · Owner: Halliburton Energy Services, Inc. · Inventors: Nguyen, Philip D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an apparatus for proppant flowback control and method for installing in a subterranean well. An expandable screen is installed in a perforated casing to cover the perforations and the screen mesh size is selected to block proppant flowback while maximizing hydrocarbon production.
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
- Filed May 14, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 14, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 14, 2024.
- 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.