Method of treating crude oil with an amine oxide compound
Patent 6106700 Issued on August 22, 2000. Estimated Expiration Date: 
November 14, 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.
November 14, 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 ReferencesTreating used hydrocarbon lubricating oils Method of separating oily materials from wash water Method of separating oleophilic-hydrophobic material from wash water Method of cleaning contaminated industrial equipment Patent #: 5686297 InventorsAssigneeApplicationNo. 557607 filed on 11/14/1995US Classes:208/188, With treating agent166/310, Entraining or incorporating treating material in flowing earth fluid208/187, Water removal (dehydration)210/632, Treating by enzyme210/708Including emulsion breakingExaminersPrimary: Griffin, Walter D.Attorney, Agent or FirmForeign Patent References
International ClassesC10G 033/04E21B 043/00 AbstractAn aqueous composition containing an amine oxide surfactant, and preferably containing an amine oxide surfactant and enzymes, is added to crude oil, preferably by injecting the composition into the oil well, or adding the composition to pipelines or tankage containing the oil. An acid can also be used in conjunction with the composition. The composition acts to remove hydrocarbon contamination, from the well bore and mechanical components and further serves to break up the oil/water/sludge emulsion being delivered from the well head to facilitate separation of the oil. When used with an acid, the composition increases the effectiveness of the acid in removing inorganic contamination.Other References
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