Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Antonio Recio, III
Enrique Antonio Reyes
Sarai Santos
Kristina Henkel Holan
Date of Patent
October 3, 2023
Patent Application Number
17403659
Date Filed
August 16, 2021
Patent Citations
Patent Primary Examiner
Patent abstract
Methods and treatment fluids for removing mixed scale. A treatment fluid is introduced into a wellbore comprising a mixed scale of interspersed calcium carbonate and calcium sulfate. The treatment fluid comprises: phosphonomethyliminodiacetic acid, N,N-bis(phosphonomethyl)glycine, or a combination thereof; and an aqueous base fluid. The treatment fluid has a pH in a range between about 6 to about 8. The method further comprises contacting the mixed scale with the treatment fluid.
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