Patents Assigned to West's Pyro Limited
  • Process for treating drilling cuttings and mud
    Patent number: 4181494
    Abstract: A process for de-contaminating drilling cuttings and/or drilling mud, contaminated with a hydrocarbon oil, comprising the step of heating the cuttings and/or mud so as to burn off the contaminant whereby the cuttings may be disposed of without environmental spoilage and the mud recycled.
    Type: Grant
    Filed: August 12, 1977
    Date of Patent: January 1, 1980
    Assignee: West's Pyro Limited
    Inventor: Ivan E. Kimberley