Patents Assigned to Conlen Surfactant Technology, Inc.
  • Low temperature hydrocarbon gel
    Patent number: 8513166
    Abstract: A composition useful for crosslinking phosphate esters in hydrocarbon gels used in formation fracturing performs especially well in cold temperatures, such as temperatures lower than (?)20° C. Methods of making the crosslinking composition and the gel are described; also methods of fracturing subterranean formations. Specific forms of ferric sulfate and ferric ammonium citrate are useful as ingredients of the crosslinking composition.
    Type: Grant
    Filed: July 2, 2010
    Date of Patent: August 20, 2013
    Assignee: Conlen Surfactant Technology, Inc.
    Inventors: Larry W. Gatlin, Glen E. Walden, Ernest McMillan, Richard A. Gatlin