Method and composition for treating a well to prevent the formation of sulfur and scale depositions
CA 1054357 A · Owner: Mobil Oil Corporation · Inventors: Blount, Floyd E.; Lechler, Siegfried; Ockelmann, Helmut
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract of the Disclosure, This specification discloses a composition and method for treating a well that is used for producing sour gas having dissolved sulfur, and water containing scale-forming ions from a subterranean formation to remove and prevent the deposition of sulfur and scale in the well. The composition is comprised of a mixture of a chemical that is capable of forming a polysulfide with hydrogen sulfide and sulfur and a complexing agent which is capable of complexing the scale-forming ions in the water. The composition is circulated into and from the well and sulfur and scale are removed therefrom. -1-
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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 May 15, 1979. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 15, 1996.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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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.