The Compound Contains Polymer Of Substituted Or Unsubstituted Phenol And Substituted Or Unsubstituted Aldehyde Patents (Class 516/147)
  • Fluid compositions and methods for using cross-linked phenolic resins
    Patent number: 9663726
    Abstract: A cross-linked phenolic resin demulsifier may be added to a water-in-oil emulsion having at least one foulant therein. The demulsifier may separate at least a portion of the foulant(s) from the water-in-oil emulsion, and the separated foulant(s) may be removed from the water-in-oil emulsion. In a non-limiting embodiment, the amount of the demulsifier present in the water-in-oil emulsion may range from about 0.1 ppm to about 50,000 ppm.
    Type: Grant
    Filed: February 10, 2014
    Date of Patent: May 30, 2017
    Assignee: Baker Hughes Incorporated
    Inventors: Jianzhong Yang, Jack B. Ward, Trevor Cappel