Corrosion inhibitor for wellbore applications
Patent 5654260 Issued on August 5, 1997. Estimated Expiration Date: 
June 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 2, 2015. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesCorrosion inhibitor for wellbore applications Patent #: 5565416 InventorAssigneeApplicationNo. 458625 filed on 06/02/1995US Classes:507/264, Organic component is a phenol507/103, Contains organic component507/939CORROSION INHIBITORExaminersPrimary: Springer, David B.Attorney, Agent or FirmInternational ClassC09K 007/02AbstractThis invention concerns a corrosion-inhibitor nominally comprised of a phenolic compound and a hydroxide-bearing compound capable of imparting a pH of 9 to water, the inclusion thereof in aerated water-based fluids and foams, and the use of these fluids in wellbore applications; particularly applications conducted at elevated temperatures. |
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